[Federal Register Volume 69, Number 156 (Friday, August 13, 2004)]
[Rules and Regulations]
[Pages 50056-50062]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-18554]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. 2002-CE-23-AD; Amendment 39-13772; AD 2004-17-01]
RIN 2120-AA64


Airworthiness Directives; Cessna Aircraft Company Models 208 and 
208B Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

-----------------------------------------------------------------------

SUMMARY: The FAA supersedes Airworthiness Directive (AD) AD 2002-22-17, 
which applies to all Cessna Aircraft Company (Cessna) Models 208 and 
208B airplanes; and AD 2003-21-04, which applies to certain Cessna 
Models 208 and 208B airplanes. This AD requires you to repetitively 
inspect the flap bellcranks for cracks and eventually replace these 
bellcranks. The installation of a newly designed bellcrank to increase 
the life limits is terminating action for the repetitive inspections. 
This AD is the result of these developments: Since FAA issued AD 2002-
22-17 and AD 2003-21-04, Cessna designed a new flap bell crank with a 
life limit of 40,000 landings instead of 7,000 landings. Also, FAA has 
done more analysis and examination of cracks and missing/incomplete 
welds in all of the bell cranks. This failure could lead to damage to 
the flap system and surrounding structure and result in reduced or loss 
of control of the airplane.

DATES: This AD becomes effective on September 26, 2004.
    As of December 31, 2002 (67 FR 68508, November 12, 2002), the 
Director of the Federal Register approved the incorporation by 
reference of Cessna Service Bulletin No. CAB02-1, dated February 11, 
2002.
    As of October 21, 2003 (68 FR 59707, October 17, 2003), the 
Director of the

[[Page 50057]]

Federal Register approved the incorporation by reference of the 
following:

Cessna Caravan Service Bulletin No.: CAB03-11, Revision 1, dated 
September 24, 2003;
Cessna Caravan Service Bulletin No.: CAB02-12, revision 1, dated 
January 27, 2003; and
Cessna Caravan Service Kit No.: SK208-148A, dated January 27, 2003 
(Original issue: October 21, 2002).

ADDRESSES: You may get the service information identified in this AD 
from Cessna Aircraft Company, Product Support, P.O. Box 7706, Wichita, 
Kansas 67277; telephone: (316) 517-5800; facsimile: (316) 942-9006.
    You may view the AD docket at FAA, Central Region, Office of the 
Regional Counsel, Attention: Rules Docket No. 2002-CE-23-AD, 901 
Locust, Room 506, Kansas City, Missouri 64106. Office hours are 8 a.m. 
to 4 p.m., Monday through Friday, except Federal holidays.

FOR FURTHER INFORMATION CONTACT: Paul Nguyen, Aerospace Engineer, FAA, 
Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, 
Wichita, Kansas 67209; telephone: 316-946-4125; facsimile: 816-946-
4107.

SUPPLEMENTARY INFORMATION:

Discussion

    What events have caused this AD? The need to reduce the life limit 
and repetitively inspect the inboard forward flap bellcrank on Cessna 
Models 208 and 208A airplanes caused us to issue AD 2002-22-17, 
Amendment 39-12944 (67 FR 68508, November 12, 2002); and AD 2003-21-04, 
Amendment 39-13339 (68 FR 59707, October 17, 2003).
    Since FAA issued AD 2002-22-17 and AD 2003-21-04, Cessna has 
designed a new flap bellcrank, part number (P/N) 2622311-7, with a life 
limit of 40,000 landings (instead of 7,000 landings). The new flap 
bellcrank (P/N 2622311-7) may be substituted for the older flap 
bellcranks, P/N 2622281-2, 2622281-12, or 2692001-2. Installation of 
this new flap bellcrank will eliminate the need for repetitive 
inspections.
    What is the potential impact if FAA took no action? Cracks in the 
bellcrank could result in failure of this part. This failure could lead 
to damage to the flap system and surrounding structure and result in 
reduced or loss of control of the airplane.
    Has FAA taken any action to this point? We issued a proposal to 
amend part 39 of the Federal Aviation Regulations (14 CFR part 39) to 
include an AD that would apply to all Cessna Models 208 and 208B 
airplanes. This proposal was published in the Federal Register as a 
notice of proposed rulemaking (NPRM) on July 28, 2003 (68 FR 44252). 
The NPRM proposed to revise AD 2002-22-17 by proposing a new AD that 
would:

--Retain the actions from AD 2003-21-04, and add all flap bellcranks to 
the applicability;
--Retain the requirements of AD 2002-22-17; and
--Provide the option of installing the 40,000 landings life limit 
bellcranks.

Comments

    Was the public invited to comment? We provided the public the 
opportunity to participate in developing this AD. The following 
presents the comments received on the proposal and FAA's response to 
each comment:

Comment Issue No. 1: Identify the New Flap Bellcrank (Part Number (P/N) 
2622311-16)

    What is the commenter's concern? The commenter writes that 
including by P/N this new flap bellcrank, which has a 40,000 landings 
life limit, in paragraph (f)(2)(ii) of the AD would be a good idea. We 
conclude that the commenter wants this specific bellcrank identified by 
part number to make this an obvious alternative bellcrank.
    What is FAA's response to the concern? We are not incorporating the 
commenter's recommendation because the proposal already identifies the 
intent. The FAA already allows installation of any new design flap 
bellcrank by the words ``* * *Or FAA approved equivalent P/N.'' If we 
included this P/N, we would be obligated to revise the AD every time a 
new part was designed including part manufacturer approvals (PMAs).
    Therefore, we are not changing the final rule AD action based on 
this comment.

Comment Issue No. 2: Allow Welding of Any Bellcrank With Missing Welds

    What is the commenter's concern? The commenter recommends that FAA 
change the AD to allow welding of the bellcrank following Cessna 
Caravan Service Bulletin CAB03-11, Revision 1, dated September 24, 
2003, except for the right hand inboard forward bellcrank. The 
commenter writes that this welding should be allowed since Cessna 
identifies welding in the above service bulletin.
    What is FAA's response to the concern? The FAA disagrees with the 
commenter's recommendation. The FAA has determined that the unsafe 
condition is prevented through inspection of the applicable Bellcranks, 
with necessary replacements.
    Therefore, we are not changing the final rule AD action based on 
this comment.

Comment Issue No. 3: Include Visual Inspection of the Aileron Bellcrank

    What is the commenter's concern? The commenter recommends that in 
this AD that FAA allow inspection of the aileron bellcrank since Cessna 
Caravan Service Bulletin CAB04-3 requires visual inspection of the 
aileron bellcrank.
    What is FAA's response to the concern? We disagree with the 
commenter's recommendation. Based on FAA's evaluation to this point, 
the unsafe condition is prevented through the inspections specified in 
the AD, with necessary replacement. The FAA will consider alternative 
methods of compliance (AMOC) on a case-by-case basis.
    We are not changing the final rule AD action based on this comment.

Conclusion

    What is FAA's final determination on this issue? We have carefully 
reviewed the available data and determined that air safety and the 
public interest require adopting the AD as proposed except for the 
changes discussed above and minor editorial corrections. We have 
determined that these changes and minor corrections:

--Are consistent with the intent that was proposed in the NPRM for 
correcting the unsafe condition; and
--Do not add any additional burden upon the public than was already 
proposed in the NPRM.

Changes to 14 CFR Part 39--Effect on the AD

    How does the revision to 14 CFR part 39 affect this AD? On July 10, 
2002, the FAA published a new version of 14 CFR part 39 (67 FR 47997, 
July 22, 2002), which governs the FAA's AD system. This regulation now 
includes material that relates to altered products, special flight 
permits, and alternative methods of compliance. This material 
previously was included in each individual AD. Since this material is 
included in 14 CFR part 39, we will not include it in future AD 
actions.

Costs of Compliance

    How many airplanes does this AD impact? We estimate that this AD 
affects 1,300 airplanes in the U.S. registry.
    What is the cost impact of this AD on owners/operators of the 
affected airplanes? For the actions retained from AD 2003-21-04, and 
the addition of all

[[Page 50058]]

bellcranks to the applicability, we estimate the following costs to do 
this inspection:

----------------------------------------------------------------------------------------------------------------
                                                           Total cost per
            Labor cost                   Parts cost           airplane         Total cost on U.S.  operators
----------------------------------------------------------------------------------------------------------------
2 workhours x $65 per hour = $130.  No cost for parts...            $130   $130 x 1,300 = $169,000
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements of 
the right inboard forward flap bellcrank (P/N 2622311-7, alternate P/N 
2622311-16) that would be required based on the results of this 
inspection. We have no way of determining the number of airplanes that 
may need this replacement:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
3 workhours x $65 per hour = $195............          $1,845   $195 + $1,845 = $2,040
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements of 
the left inboard forward flap bellcrank (P/N 2622281-1) that would be 
required based on the results of this inspection. We have no way of 
determining the number of airplanes that may need this replacement:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65..............          $1,201   $65 + $1,201 = $1,266
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements of 
the right inboard aft flap bellcrank (P/N 2622267-8) that would be 
required based on the results of this inspection. We have no way of 
determining the number of airplanes that may need this replacement:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65..............          $1,273   $65 + $1,273 = $1,338
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements of 
the left inboard aft flap bellcrank (P/N 2622267-7) that would be 
required based on the results of this inspection. We have no way of 
determining the number of airplanes that may need this replacement:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65..............          $2,098   $65 + $2,098 = $2,163
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements of 
the left outboard flap bellcrank (P/N 2622091-17) that would be 
required based on the results of this inspection. We have no way of 
determining the number of airplanes that may need this replacement:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65..............            $627   $65 + $627 = $692
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements of 
the right outboard flap bellcrank (P/N 2622091-18) that would be 
required based on the results of this inspection. We have no way of 
determining the number of airplanes that may need this replacement:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65..............            $661   $65 + $627 = $726
----------------------------------------------------------------------------------------------------------------


[[Page 50059]]

    For the requirements from AD 2002-22-17 that you repetitively 
inspect the inboard forward flap bellcranks for cracks, eventually 
replace these bellcranks, and provides the option of installing the new 
design flap bellcrank to increase the life limits and terminate the 
repetitive inspections, we estimate the following costs to do the 
inspection:

----------------------------------------------------------------------------------------------------------------
                                                          Total cost  per
            Labor cost                   Parts cost           airplane         Total cost on U.S.  operators
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65...  No cost for parts...             $65   $65 x 1,300 = $84,500
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any replacements using the 
same flap bellcrank (P/N 2622281-2, 2622281-12, 2692001-2, or FAA-
approved equivalent P/N) that will be required based on the inspection 
or the reduced life limits:

--------------------------------------------------------------------------------------------------------------------------------------------------------
               Labor cost                    Parts cost              Total cost  per airplane                     Total cost on U.S.  operators
--------------------------------------------------------------------------------------------------------------------------------------------------------
3 workhours x $65 per hour = $195.......          $1,793   $195 + $1,793 = $1,988                       $1,988 x 1,300 = $2,584,400
--------------------------------------------------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any replacements using the 
new flap bellcrank (P/N 2622311-7 or FAA-approved equivalent P/N) that 
will be required based on the inspection or the reduced life limits. We 
have no way of determining the number of airplanes that may need this 
replacement with the new flap bellcrank:

----------------------------------------------------------------------------------------------------------------
                  Labor cost                      Parts cost                Total cost  per airplane
----------------------------------------------------------------------------------------------------------------
3 workhours x $65 per hour = $195............          $1,845   $195 + $1,845 = $2,040
----------------------------------------------------------------------------------------------------------------

Regulatory Findings

    Will this AD impact various entities? We have determined that this 
AD will not have federalism implications under Executive Order 13132. 
This AD will not have a substantial direct effect on the States, on the 
relationship between the national government and the States, or on the 
distribution of power and responsibilities among the various levels of 
government.
    Will this AD involve a significant rule or regulatory action? For 
the reasons discussed above, I certify that this AD:
    1. Is not a ``significant regulatory action'' under Executive Order 
12866;
    2. Is not a ``significant rule'' under the DOT Regulatory Policies 
and Procedures (44 FR 11034, February 26, 1979); and
    3. Will not have a significant economic impact, positive or 
negative, on a substantial number of small entities under the criteria 
of the Regulatory Flexibility Act.
    We prepared a summary of the costs to comply with this AD and 
placed it in the AD Docket. You may get a copy of this summary by 
sending a request to us at the address listed under ADDRESSES. Include 
``AD Docket No. 2002-CE-23-AD'' in your request.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Incorporation by 
reference, Safety.

Adoption of the Amendment

0
Accordingly, under the authority delegated to me by the Administrator, 
the Federal Aviation Administration amends part 39 of the Federal 
Aviation Regulations (14 CFR part 39) as follows:

PART 39--AIRWORTHINESS DIRECTIVES

0
1. The authority citation for part 39 continues to read as follows:

    Authority: 49 U.S.C. 106(g), 40113, 44701.


Sec.  39.13  [Amended]

0
2. FAA amends Sec.  39.13 by removing Airworthiness Directive (AD) 
2002-22-17, amendment 39-12944 (67 FR 68508, November 12, 2002), and AD 
2003-21-04, amendment 39-13339 (68 FR 59707, October 17, 2003); and by 
adding a new AD to read as follows:

2004-17-01 Cessna Aircraft Company: Amendment 39-13772; Docket No. 
2002-CE-23-AD; Supersedes AD 2002-22-17, amendment 39-12944; and AD 
2003-21-04, amendment 39-13339.

When Does This AD Become Effective?

    (a) This AD becomes effective on September 26, 2004.

What Other ADs Are Affected by This Action?

    (b) This AD supersedes AD 2002-22-17, amendment 39-12944; and AD 
2003-21-04, amendment 39-13339.

What Airplanes Are Affected by This AD?

    (c) This AD affects the following airplane models and serial 
numbers that are certificated in any category:
    (1) Group 1 (retains the actions from AD 2003-21-04, and adds 
all flap bellcranks to the applicability):

------------------------------------------------------------------------
               Model                             Serial Nos.
------------------------------------------------------------------------
208...............................  20800001 through 20800369.
208B..............................  208B0001 through 208B1014, 208B1017,
                                     208B1018, 208B1020 through
                                     208B1024, 208B1026, and 208B1029
                                     through 208B1033.
------------------------------------------------------------------------

    (2) Group 2 (retains the requirement of AD 2002-22-17 that you 
repetitively inspect the inboard forward flap bellcranks for cracks, 
eventually replace these bellcranks, and provides the option of 
installing the new design flap bellcrank to increase the life limits 
and terminate the repetitive inspections): Models 208 and 208B 
airplanes, all serial numbers.

What Is the Unsafe Condition Presented in This AD?

    (d) This AD is the result of (since FAA issued AD 2002-22-17) 
Cessna's design of a new flap bell crank with a life limit of 40,000 
landings (instead of 7,000 landings), and (since FAA issued AD 2003-
21-04) further analysis and examination of cracks and missing/
incomplete welds in all of the bell cranks. The actions specified in 
this AD are intended to prevent failure of any bellcrank due to 
cracks, deformation, or missing/incomplete welds. This failure could 
lead to damage to the flap system and surrounding

[[Page 50060]]

structure and result in reduced or loss of control of the airplane.

What Must I Do To Address This Problem for Group 1 Airplanes?

    (e) To address this problem for Group 1 airplanes, you must do 
the following:

------------------------------------------------------------------------
             Actions                  Compliance          Procedures
------------------------------------------------------------------------
(1) Inspect the right inboard     Within the next 25  Use a flashlight
 forward flap bellcrank assembly   landings after      and a mirror as
 for cracks, deformation, and      October 21, 2003    necessary to see
 missing/incomplete welds. The     (the effective      if welds (1),
 affected flap bellcrank           date of AD 2003-    (4), (5), and (6)
 incorporates one of the           21-04). If          exist and are at
 following part numbers (P/N):     landings are        least 0.06-inch
(i) P/N 2622083-18;.............   unknown, then you   thick around the
(ii) P/N 2622281-2;.............   may multiply        full
(iii) P/N 2692001-2; or.........   hours time-in-      circumference of
(iv) P/N 2622281-12.............   service (TIS) by    the shaft. These
                                   1.25. For the       welds and the
                                   purposes of this    inspection
                                   AD, you may         procedures are
                                   substitute 20       referenced in
                                   hours TIS for 25    Figure 1, details
                                   landings.           A, B, and C; and
                                                       Views A-A and B-B
                                                       of Cessna Caravan
                                                       Service Bulletin
                                                       No.: CAB03-11,
                                                       Revision 1, dated
                                                       September 24,
                                                       2003.
(2) Inspect the left inboard      Within the next 25  Use a flashlight
 forward bellcrank for cracks,     landings after      and a mirror as
 deformation, and missing/         September 26,       necessary to see
 incomplete welds. The affected    2004, the           if welds (1)
 flap bellcrank incorporates one   effective date of   through (4) exist
 of the following part P/Ns:       this AD. If         and are at least
(i) P/N 262283-15; or...........   landings are        0.06-inch thick
(ii) P/N 262281-1...............   unknown, then you   around the full
                                   may multiply        circumference of
                                   hours TIS by        the shaft. These
                                   1.25. For the       welds and the
                                   purposes of this    inspection
                                   AD, you may         procedures are
                                   substitute 20       referenced in
                                   hours TIS for 25    Figure 2, details
                                   landings.           A, B, and C; and
                                                       Views A-A and B-B
                                                       of Cessna Caravan
                                                       Service Bulletin
                                                       No.: CAB03-11,
                                                       Revision 1, dated
                                                       September 24,
                                                       2003.
(3) Inspect the inboard aft       Within the next 25  Use a flashlight
 bellcrank for cracks,             landings after      and a mirror as
 deformation, and missing/         September 26,       necessary to see
 incomplete welds. The affected    2004, the           if welds (1),
 flap bellcrank incorporates one   effective date of   (2), (4), and (5)
 of the following P/Ns:            this AD. If         exist and are at
(i) P/N 2622267-1; or...........   landings are        least 0.05-inch
(ii) P/N 2622267-2;.............   unknown, then you   thick around the
(iii) P/N 2622267-7;............   may multiply        full
(iv) P/N 2622267-8;.............   hours TIS by        circumference of
(v) P/N 2622083-1; or...........   1.25. For the       the shaft. These
(vi) P/N 2622083-2..............   purposes of this    welds and the
                                   AD, you may         inspection
                                   substitute 20       procedures are
                                   hours TIS for 25    referenced in
                                   landings.           Figure 3, details
                                                       A, B, and C; and
                                                       Views A-A and B-B
                                                       of Cessna Caravan
                                                       Service Bulletin
                                                       No.: CAB03-11,
                                                       Revision 1, dated
                                                       September 24,
                                                       2003.
(4) Inspect the outboard          Within the next 25  Use a flashlight
 bellcrank for cracks,             landings after      and a mirror as
 deformation, and missing/         September 26,       necessary to see
 incomplete welds. The affected    2004, the           if welds (1)
 flap bellcrank incorporates one   effective date of   through (4) exist
 of the following P/Ns:            this AD. If lands   and are at least
(i) P/N 2622091-1; or...........   are unknown, then   0.05-inch thick
(ii) P/N 2622091-2;.............   you may multiply    around the full
(iii) P/N 2622091-9;............   hours TIS by        circumference of
(iv) P/N 2622091-10;............   1.25. For the       the shaft. These
(v) P/N 2622091-17; or..........   purposes of this    welds and the
(vi) P/N 2622091-28.............   AD, you may         inspection
                                   substitute 20       procedures are
                                   hours TIS for 25    referenced in
                                   landings.           Figure 4, details
                                                       A, B, and C; and
                                                       Views A-A and B-B
                                                       of Cessna Caravan
                                                       Service Bulletin
                                                       No.: CAB03-11,
                                                       Revision 1, dated
                                                       September 24,
                                                       2003.
(5) If you find cracks,           Replace or do the   Replacement: Use
 deformation, or missing/          flap prohibition    the
 incomplete welds during the       actions before      Accomplishment
 inspection required by            further flight      Instructions of
 paragraphs (e)(1) through         after the           Cessna Caravan
 (e)(4) of this AD, then do one    inspection          Service bulletin
 of the following:                 required in         No.: CAB02-12,
(1) Replace the bellcrank with a   paragraphs (e)(1)   Revision 1, dated
 new bellcrank; or.                through (e)(4) of   January 27, 2003,
(ii) Prohibit the use of flaps     this AD. If you     and the
 through the actions of            choose the flap     Accomplishment
 paragraph (g) of this AD..        prohibition, you    Instructions of
                                   must have the       Cessna Caravan
                                   replacement done    Service Kit No.:
                                   within 200 hours    SK208-148A, dated
                                   TIS after the       January 27, 2003,
                                   inspection          or refer to the
                                   required by         Maintenance
                                   paragraphs (e)(1)   Manual, Chapter
                                   through (e)(4) of   27, Flap System--
                                   this AD. After      Maintenance
                                   the new flap        Practices, for
                                   bellcrank is        bellcrank removal
                                   installed, the      and installation
                                   Temporary           procedures.
                                   Revision           Flap Prohibition:
                                   208PHTR02, dated    Use the
                                   September 23,       information in
                                   2003, should be     the Temporary
                                   removed.            Revision
                                                       208PHTR02, dated
                                                       September 23,
                                                       2003. The action
                                                       is referenced in
                                                       Cessna Caravan
                                                       Service Bulletin
                                                       No.: CAB03-11,
                                                       Revision 1, dated
                                                       September 24,
                                                       2003.
------------------------------------------------------------------------

What Must I Do To Address This Problem for Group 2 Airplanes?

    (f) To address this problem for Group 2 airplanes, you must do 
the following:

[[Page 50061]]



------------------------------------------------------------------------
             Actions                  Compliance          Procedures
------------------------------------------------------------------------
(1) Repetitive Inspections:       Initially inspect   Follow the
 Inspect, using eddy current       upon the            Inspection
 method, any inboard forward       accumulation of     Instructions of
 flap bellcrank (P/N 2622281-2,    4,000 landings on   Cessna Caravan
 2622281-12, 2692001-2, or FAA-    the bellcrank or    Service Bulletin
 approved equivalent P/N) for      within the next     No.: CAB02-1,
 cracks.                           250 landings        dated February
                                   after December      11, 2002, and the
                                   31, 2002 (the       applicable
                                   effective date of   maintenance
                                   AD 2002-22-17),     manual.
                                   whichever occurs
                                   later.
                                  Repetitively
                                   inspect
                                   thereafter at
                                   every 500
                                   landings until
                                   7,000 landings
                                   are accumulated
                                   at which time you
                                   must replace as
                                   required in
                                   paragraphs (f)(2)
                                   and (f)(3) of
                                   this AD. No
                                   repetitive
                                   inspections are
                                   required when a P/
                                   N 2622311-7 (or
                                   FAA-approved
                                   equivalent P/N)
                                   inboard forward
                                   flap bellcrank is
                                   installed.
(2) Initial Replacement: Replace  If cracks are       Replacement: For
 any inboard forward flap          found, replace or   flap bellcrank (P/
 bellcrank (P/N 2622281-2,         do the flap         N 2622281-2,
 2622281-12, 2692001-2, or FAA-    prohibition         2622281-12,
 approved equivalent P/N) with     actions before      2692001-2, or FAA-
 either:                           further flight      approved
(i) a new flap bellcrank with      after the           equivalent P/N):
 the same P/N 2622281-2, 26228-    inspection          Follow the
 12, 269001-2, or FAA-approved     required in         Instructions of
 or equivalent P/N; or.            paragraphs (f)(1)   Cessna Caravan
(ii) a new flap bellcrank (P/M     of this AD. If      Service Bulletin
 262231-7 or FAA-approved          you choose the      No.: CAB02-1,
 equivalent P/N)..                 flap prohibition,   dated February
                                   you must have the   11, 2002, and the
                                   replacement done    applicable
                                   within 200 hours    maintenance
                                   TIS after the       manual. For new
                                   inspection          flap bellcrank (P/
                                   required by         N 2622311-7 or
                                   paragraphs (f)(1)   FAA-approved
                                   of this AD. After   equivalent P/N):
                                   the new flap        Follow the
                                   bellcrank is        Accomplishment
                                   installed, the      Instructions of
                                   Temporary           Cessna Caravan
                                   Revision            Service Bulletin
                                   208PHTR02, dated    No.: CAB02-12,
                                   September 23,       Revision 1, dated
                                   2003, should be     January 27, 2003,
                                   removed. If         and the
                                   cracks are not      Accomplishment
                                   found, initially    Instructions of
                                   replace at          Cessna Caravan
                                   whichever occurs    Service Kit No.:
                                   later: upon the     SK208-148A, dated
                                   accumulation of     January 27, 2003.
                                   7,000 landings on   Flap
                                   the bellcrank or    Prohibitions: Use
                                   within the next     the information
                                   75 landings after   in the Temporary
                                   December 31, 2002   Revision
                                   (the effective      208PHTR02, dated
                                   date of AD 2002-    September 23,
                                   22-17).             2003.
(3) Life Limits (Repetitive       Replace at the      Use the service
 Replacements):.                   applicable          information
(i) The life limit for the         referenced life     referenced in
 inboard forward flap bellcranks   limits.             paragraph (f)(2)
 (P/N 2622281-2, 2622281-12,                           of this AD.
 2692001-2, or FAA-approved
 equivalent P/N) is 7,000
 landings. Repetitive
 inspections every 500 landings
 begin at 4,000 landings (see
 paragraph (f)(1) of this AD.).
(ii) The life limit for the
 inboard forward flap bellcranks
 (P/N 2622311-7 or FAA-approved
 equivalent P/N) is 40,000
 landings. No repetitive
 inspections are required on
 these bellcranks..
------------------------------------------------------------------------


    Note 1: Inboard forward flap bellcranks (P/N 2622281-2, 2622281-
12, or 2692001-2) with 7,000 landings or more do not have to be 
replaced until 75 landings after December 31, 2002 (the effective 
date of AD 2002-22-17), unless found cracked.


    Note 2: The compliance times of this AD are presented in 
landings instead of hours TIS. If the number of landings is unknown, 
hours TIS may be used by multiplying the number of hours TIS by 
1.25.

What Are the Actions I Must Do if I Choose the Flap Prohibition 
Option?

    (g) Insert Temporary Revision, 208PHTR02, dated September 23, 
2003, into the applicable pilot's operating handbook and FAA-
approved airplane flight manual. The owner/operator holding at least 
a private pilot certificate as authorized by section 43.7 of the 
Federal Aviation Regulations (14 CFR 43.7) may incorporate this 
information into the AFM. Make an entry into the aircraft records 
showing compliance with this portion of the AD in accordance with 
section 43.9 of the Federal Aviation Regulations (14 CFR 43.9).
    (1) This procedure applies to Cessna Models 208 and 208B 
landplanes. For other FAA-approved aircraft configurations (for 
example, amphibian, floatplanes, and so forth), you must operate 
with flaps up per the appropriate airplane flight manual supplement.
    (2) This procedure allows for applicable deviation from the 
Master Minimum Equipment List (MMEL) for these airplanes until the 
flap bell crank is replaced. The applicable MMEL requirements go 
back into effect at the time of flap bell crank replacement.

May I Request an Alternative Method of Compliance?

    (h) You may request a different method of compliance or a 
different compliance time for this AD by following the procedures in 
14 CFR 39.19. Unless FAA authorizes otherwise, send your request to 
your principal inspector. The principal inspector may add comments 
and will send your request to the Manager, Wichita Aircraft 
Certification Office (ACO), FAA.
    (1) For information on any already approved alternative methods 
of compliance, contact Paul Nguyen, Aerospace Engineer, FAA, Wichita 
ACO, 1801 Airport Road, Room 100, Wichita, Kansas 67209; telephone: 
316-946-4125; facsimile: 816-946-4107.
    (2) Alternative methods of compliance approved under AD 2002-22-
17 and AD 2003-21-04 are not approved for this AD.

Does This AD Incorporate Any Material by Reference?

    (i) You must do the actions required by this AD following the 
instructions in the service information presented in paragraphs 
(i)(1) and (i)(2) of this AD.
    (1) On December 31, 2002 (67 FR 68508, November 12, 2002) and in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51, the Director of 
the Federal Register approved the incorporation of Cessna Service 
Bulletin No.: CAB02-1, dated February 11, 2002.
    (2) On October 21, 2003 (68 FR 59707, October 17, 2003), and in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51, the Director of 
the Federal Register approved the incorporation of Cessna Caravan 
Service Bulletin No.: CAB03-11, Revision 1, dated September 24, 
2003; Cessna Caravan Service Bulletin No. CAB02-12, revision 1, 
dated January 27, 2003; and Cessna Caravan Service Kit No.: SK208-
148A, dated January 27, 2003 (original issue: October 21, 2002).

[[Page 50062]]

    (3) You may get a copy from Cessna Aircraft Company, Product 
Support, P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 517-
5800; facsimile: (316) 942-9006. You may review copies at FAA, 
Central Region, Office of the Regional Counsel, 901 Locust, Room 
506, Kansas City, Missouri 64106; or at the National Archives and 
Records Administration (NARA). For information on the availability 
of this material at NARA, call (202) 741-6030, or go to: http://www.archives.gov/federal_register/code--of--federal --regulations/
ibr--locations.html.

    Issued in Kansas City, Missouri, on August 5, 2004.
Dorenda D. Baker,
Manager, Small Airplane Directorate, Aircraft Certification Service.
[FR Doc. 04-18554 Filed 8-12-04; 8:45 am]
BILLING CODE 4910-13-P