[Federal Register Volume 69, Number 206 (Tuesday, October 26, 2004)]
[Rules and Regulations]
[Pages 62396-62399]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 04-23729]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2004-18033; Directorate Identifier 2004-CE-16-AD; 
Amendment 39-13828; AD 2004-21-08]
RIN 2120-AA64


Airworthiness Directives; Cessna Aircraft Company Models 190, 195 
(L-126A,B,C), 195A, and 195B Airplanes

AGENCY: Federal Aviation Administration (FAA), DOT.

ACTION: Final rule.

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SUMMARY: The FAA adopts a new airworthiness directive (AD) for all 
Cessna Aircraft Company (Cessna) Models 190, 195 (L-126A,B,C), 195A,

[[Page 62397]]

and 195B airplanes that are equipped with certain inboard aileron hinge 
brackets. This AD requires you to repetitively inspect the affected 
inboard aileron hinge brackets for cracks or corrosion and replace them 
if found cracked or corroded. Replacement with aluminum brackets would 
terminate the need for the repetitive inspections. This AD results from 
several reports of cracks and corrosion found on the magnesium aileron 
hinge brackets. Magnesium is known to be susceptible to corrosion. We 
are issuing this AD to detect and correct corrosion damage to the 
inboard aileron hinge brackets. Such damage could result in the 
brackets cracking across the bearing boss and could lead to the aileron 
separating from the airplane with consequent reduced or loss of control 
of the airplane.

DATES: This AD becomes effective on November 30, 2004.
    As of November 30, 2004, the Director of the Federal Register 
approved the incorporation by reference of certain publications listed 
in the regulation.

ADDRESSES: To get the service information identified in this AD, 
contact Cessna Aircraft Company, Product Support P.O. Box 7706, 
Wichita, Kansas 67277; telephone: (316) 517-5800; facsimile: (316) 942-
9006. To review this service information, go to the National Archives 
and Records Administration (NARA). For information on the availability 
of this material at NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call 
(202) 741-6030.
    To view the AD docket, go to the Docket Management Facility; U.S. 
Department of Transportation, 400 Seventh Street, SW., Nassif Building, 
Room PL-401, Washington, DC 20590-0001 or on the Internet at http://dms.dot.gov. The docket number is FAA-2004-18033; Directorate 
Identifier 2004-CE-16-AD.

FOR FURTHER INFORMATION CONTACT: Gary D. Park, Aerospace Engineer, FAA, 
Wichita Aircraft Certification Office, 1801 Airport Road, Room 100, 
Mid-Continent Airport, Wichita, Kansas 67209; telephone: (316) 946-
4123; facsimile: (316) 946-4107.

SUPPLEMENTARY INFORMATION:

Discussion

    What events have caused this AD? The FAA has received several 
reports of cracks and corrosion on part number (P/N) 0322709 and P/N 
0322709-1 inboard aileron hinge brackets on Cessna Models 190, 195 (L-
126A,B,C), 195A, and 195B airplanes. These inboard aileron hinge 
brackets are constructed of magnesium, which is highly susceptible to 
corrosion.
    When corrosion starts to develop, the inboard aileron hinge 
brackets could crack across the bearing boss.
    What is the potential impact if FAA took no action? Cracked or 
corroded inboard aileron hinge brackets, if not detected and corrected, 
could result in the ailerons separating from the airplane with 
consequent 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 190, 195 (L-
126A,B,C), 195A, and 195B airplanes. This proposal was published in the 
Federal Register as a notice of proposed rulemaking (NPRM) on July 15, 
2004 (69 FR 42358). The NPRM proposed to require you to repetitively 
inspect the affected inboard aileron hinge brackets for cracks or 
corrosion and replace them if found cracked or corroded. Replacement 
with aluminum brackets would terminate the need for the repetitive 
inspections.
    Accomplishment of the proposed inspections would be following 
Cessna Single Engine Service Bulletin SEB04-1, dated April 26, 2004.

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: Allow for Replacement of Inboard Aileron Hinge 
Brackets Other Than Cessna Inboard Aileron Hinge Brackets

    What is the commenter's concern? Several commenters point out that 
the NPRM is confusing. They state that the NPRM preamble states that 
you must replace any inboard aileron hinge bracket made from magnesium 
with one made from aluminum. However, the actual AD portion of the NPRM 
refers to replacing with inboard aileron hinge brackets as specified in 
Cessna Single Engine Service Bulletin SEB04-1, dated April 26, 2004. 
The commenters believe that this could be confusing in the field as to 
whether you can install non-Cessna parts.
    Some of these commenters wanted FAA to list the parts that were 
approved for installation, including Cessna parts, supplemental type 
certificate (STC) parts, and parts manufacturer approval (PMA) parts.
    What is FAA's response to the concern? The FAA agrees that the NPRM 
is confusing. The intent was to allow installation of any FAA-approved 
inboard aileron hinge bracket that is made from aluminum as terminating 
action for the repetitive inspections. We will rewrite this portion of 
the AD to ensure that the intent is communicated correctly.
    However, listing all approved replacement inboard aileron hinge 
brackets in the AD is a tedious task and one that could become 
burdensome if others wanted the list updated at a later time. 
Therefore, we are not including a list of FAA-approved replacement 
parts. We will include information that states that FAA-approved 
replacement parts may be Cessna parts, STC parts, or PMA parts, etc.
    The final rule reflects the change in wording to ensure the 
understanding that you may install non-Cessna parts.

Comment Issue No. 2: Refer to the Model 195 Airplanes as Model 195 (L-
126A,B,C) Airplanes

    What is the commenter's concern? One commenter recommends that FAA 
change reference to the Model 195 airplanes in the applicability to 
Model 195 (L-126A,B,C) airplanes. This would coincide with Type 
Certificate Data Sheet A-790, Revision 36, dated March 31, 2003.
    What is FAA's response to the concern? The FAA agrees and will 
change the final rule AD accordingly.

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.

Docket Information

    Where can I go to view the docket information? You may view the AD 
docket that contains information relating to this subject in person at 
the DMS Docket Offices between 9 a.m. and 5 p.m. (eastern standard 
time), Monday through Friday, except Federal holidays. The Docket 
Office (telephone 1-800-647-5227) is located on the plaza level of the 
Department of Transportation NASSIF Building at the street address 
stated in ADDRESSES. You may also view the AD docket on the Internet at

[[Page 62398]]

http://dms.dot.gov.

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 1,180 airplanes in the U.S. registry.
    What is the cost impact of this AD on owners/operators of the 
affected airplanes? We estimate the following costs to do this proposed 
inspection:

----------------------------------------------------------------------------------------------------------------
                                                                     Total cost per        Total cost on U.S.
              Labor cost                        Parts cost              airplane               operators
----------------------------------------------------------------------------------------------------------------
1 workhour x $65 per hour = $65.......  No special parts                         $65   1,180 airplanes x $65 =
                                         necessary for inspection.                      $76,700.
----------------------------------------------------------------------------------------------------------------

    We estimate the following costs to do any necessary replacements 
that would be required based on the results of this proposed 
inspection. We have no way of determining the number of airplanes that 
may need this replacement:

------------------------------------------------------------------------
                                                        Total cost per
           Labor cost                 Parts cost           airplane
------------------------------------------------------------------------
6 workhours x $65 per hour =                 $2,954              $3,344
 $390...........................
------------------------------------------------------------------------

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 
``Docket No. FAA-2004-18033; Directorate Identifier 2004-CE-16-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 adding a new AD to read as follows:

2004-21-08 Cessna Aircraft Company: Amendment 39-13828; Docket No. 
FAA-2004-18033; Directorate Identifier 2004-CE-16-AD.

When Does This AD Become Effective?

    (a) This AD becomes effective on November 30, 2004.

What Other ADs Are Affected by This Action?

    (b) None.

What Airplanes Are Affected by This AD?

    (c) This AD affects Models 190, 195 (L-126A, B, C), 195A, and 
195B airplanes, all serial numbers, that are:
    (1) certificated in any category; and
    (2) equipped with at least one part number (P/N) 0322709 or P/N 
0322709-1 inboard aileron hinge bracket.

What Is the Unsafe Condition Presented in This AD?

    (d) This AD is the result of several reports of cracks and 
corrosion found on the magnesium aileron hinge brackets. Magnesium 
is known to be susceptible to corrosion. We are issuing this AD to 
detect and correct corrosion damage to the inboard aileron hinge 
brackets. Such damage could result in the brackets cracking across 
the bearing boss and could lead to the aileron separating from the 
airplane with consequent reduced or loss of control of the airplane.

What Must I Do To Address This Problem?

    (e) To address this problem, you must do the following:

------------------------------------------------------------------------
             Actions                  Compliance          Procedures
------------------------------------------------------------------------
(1) Inspect each P/N 0322709 and  Initially inspect   Follow the
 P/N 0322709-1 inboard aileron     within the next     procedures in
 hinge bracket or any other        100 hours time-in-  Cessna Single
 bracket made from magnesium for   service (TIS)       Engine Service
 cracks or corrosion.              after November      Bulletin SEB04-1,
                                   30, 2004 (the       dated April 26,
                                   effective date of   2004.
                                   this AD), unless
                                   already done.
                                   Repetitively
                                   inspect
                                   thereafter at
                                   intervals not to
                                   exceed 100 hours
                                   TIS until each
                                   bracket is
                                   replaced with an
                                   FAA-approved
                                   bracket that is
                                   made with
                                   aluminum.

[[Page 62399]]

 
(2) Replace any cracked or        Prior to further    Use the procedures
 corroded inboard aileron hinge    flight after any    included with the
 bracket.                          inspection where    FAA-approved
(i) If replacement is with a       any cracked or      replacement and
 bracket made from magnesium, do   corroded bracket    the FAA-approved
 the 100-hour TIS interval         is found. You may   maintenance
 repetitive inspections as         terminate the       manual. This
 required in paragraph (e)(1) of   repetitive          could include
 this AD.                          inspections         Cessna parts,
(ii) If replacement is with an     required by this    supplemental type
 FAA-approved bracket that is      AD when all         certificate (STC)
 made from aluminum, then no       brackets are        parts, or parts
 further inspections are           replaced with FAA-  manufacturer
 necessary. These can be Cessna    approved brackets   approval (PMA)
 parts or non-Cessna parts.        that are made       parts, etc.
                                   with aluminum, as
                                   specified in the
                                   service
                                   information.
(3) As terminating action for     You may do this     Use the procedures
 the repetitive inspections, you   replacement at      included with the
 may replace all inboard aileron   any time, but you   approved
 hinge brackets with FAA-          must replace any    replacement and
 approved brackets that are made   corroded or         the FAA-approved
 from aluminum (as specified in    cracked bracket     maintenance
 paragraph (e)(2)(ii) of this      prior to further    manual. This
 AD) regardless if any corrosion   flight after the    could include
 or crack is found.                applicable          Cessna parts, STC
                                   inspection where    parts, or PMA
                                   any corrosion or    parts, etc.
                                   crack is found.
------------------------------------------------------------------------

May I Request an Alternative Method of Compliance?

    (f) 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, FAA. For information on any already approved 
alternative methods of compliance, contact Gary D. Park, Aerospace 
Engineer, FAA, Wichita Aircraft Certification Office, 1801 Airport 
Road, Room 100, Mid-Continent Airport, Wichita, Kansas 67209; 
telephone: (316) 946-4123; facsimile: (316) 946-4107.

Does This AD Incorporate Any Material by Reference?

    (g) You must do the inspections required by this AD following 
the instructions in Cessna Single Engine Service Bulletin SEB04-1, 
dated April 26, 2004. The Director of the Federal Register approved 
the incorporation by reference of this service bulletin in 
accordance with 5 U.S.C. 552(a) and 1 CFR part 51. To get a copy of 
this service information, contact Cessna Aircraft Company, Product 
Support P.O. Box 7706, Wichita, Kansas 67277; telephone: (316) 517-
5800; facsimile: (316) 942-9006. To review copies of this service 
information, go to the National Archives and Records Administration 
(NARA). For information on the availability of this material at 
NARA, go to: http://www.archives.gov/federal_register/code_of_federal_regulations/ibr_locations.html or call (202) 741-6030. To 
view the AD docket, go to the Docket Management Facility; U.S. 
Department of Transportation, 400 Seventh Street, SW., Nassif 
Building, Room PL-401, Washington, DC 20590-001 or on the Internet 
at http://dms.dot.gov. The docket number is FAA-2004-18033.

    Issued in Kansas City, Missouri, on October 13, 2004.
William J. Timberlake,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 04-23729 Filed 10-25-04; 8:45 am]
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