[Federal Register Volume 70, Number 205 (Tuesday, October 25, 2005)]
[Proposed Rules]
[Pages 61580-61583]
From the Federal Register Online via the Government Publishing Office [www.gpo.gov]
[FR Doc No: 05-21309]


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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2005-20970; Directorate Identifier 2004-NM-53-AD]
RIN 2120-AA64


Airworthiness Directives; Cessna Model 500, 501, 550, S550, 551, 
and 560 Airplanes

AGENCY: Federal Aviation Administration (FAA), Department of 
Transportation (DOT).

ACTION: Supplemental notice of proposed rulemaking (NPRM); reopening of 
comment period.

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SUMMARY: The FAA is revising an earlier proposed airworthiness 
directive (AD) for certain Cessna Model 500, 501, 550, S550, 551, and 
560 airplanes. The original NPRM would have required revising the 
airplane flight manual (AFM) to prohibit use of the wing fuel boost 
pumps for defueling under certain conditions; installing a placard; 
doing other specified investigative and corrective actions as 
necessary; and modifying the boost pumps. The original NPRM also would 
have required the subsequent removal of the AFM revision and placard. 
The original NPRM resulted from a report of a chafed electrical wiring 
harness, which was arcing inside the fuel tank. This action revises the 
original NPRM by identifying certain service information not identified 
in the original NPRM. We are proposing this supplemental NPRM to 
prevent potential fuel vapor ignition in a fuel tank, which could 
result in explosion and loss of the airplane.

DATES: We must receive comments on this supplemental NPRM by November 
21, 2005.

ADDRESSES: Use one of the following addresses to submit comments on 
this supplemental NPRM.
     DOT Docket Web site: Go to http://dms.dot.gov and follow 
the instructions for sending your comments electronically.
     Government-wide rulemaking Web site: Go to http://www.regulations.gov and follow the instructions for sending your 
comments electronically.
     Mail: Docket Management Facility; U.S. Department of 
Transportation, 400 Seventh Street SW., Nassif Building, room PL-401, 
Washington, DC 20590.
     Fax: (202) 493-2251.
     Hand Delivery: Room PL-401 on the plaza level of the 
Nassif Building, 400 Seventh Street SW., Washington, DC, between 9 a.m. 
and 5 p.m., Monday through Friday, except Federal holidays.
    For service information identified in this proposed AD, contact 
Cessna Aircraft Co., P.O. Box 7706, Wichita, Kansas 67277.

FOR FURTHER INFORMATION CONTACT: Bryan Easterwood, Aerospace Engineer, 
Electrical Systems and Avionics Branch, ACE-119W, FAA, Wichita Aircraft 
Certification Office, 1801 Airport Road, room 100, Mid-Continent 
Airport, Wichita, Kansas 67209; telephone (316) 946-4132; fax (316) 
946-4107.

SUPPLEMENTARY INFORMATION:

Comments Invited

    We invite you to submit any relevant written data, views, or 
arguments regarding this supplemental NPRM. Send your comments to an 
address listed in the ADDRESSES section. Include the docket number 
``Docket No. FAA-2005-20970; Directorate Identifier 2004-NM-53-AD'' at 
the beginning of your comments. We specifically invite comments on the 
overall regulatory, economic, environmental, and energy aspects of this 
supplemental NPRM. We

[[Page 61581]]

will consider all comments received by the closing date and may amend 
this supplemental NPRM in light of those comments.
    We will post all comments submitted, without change, to http://dms.dot.gov, including any personal information you provide. We will 
also post a report summarizing each substantive verbal contact with FAA 
personnel concerning this supplemental NPRM. Using the search function 
of that web site, anyone can find and read the comments in any of our 
dockets, including the name of the individual who sent the comment (or 
signed the comment on behalf of an association, business, labor union, 
etc.). You may review the DOT's complete Privacy Act Statement in the 
Federal Register published on April 11, 2000 (65 FR 19477-78), or you 
may visit http://dms.dot.gov.

Examining the Docket

    You may examine the AD docket on the Internet at http://dms.dot.gov, or in person at the Docket Management Facility office 
between 9 a.m. and 5 p.m., Monday through Friday, except Federal 
holidays. The Docket Management Facility office (telephone (800) 647-
5227) is located on the plaza level in the Nassif Building at the DOT 
street address stated in ADDRESSES. Comments will be available in the 
AD docket shortly after the Docket Management System receives them.

Discussion

    We proposed to amend 14 CFR part 39 with a notice of proposed 
rulemaking (NPRM) for an AD (the ``original NPRM'') for certain Cessna 
Model 500, 501, 550, S550, 551, and 560 airplanes. The original NPRM 
was published in the Federal Register on April 18, 2005 (70 FR 20083). 
The original NPRM proposed to require revising the airplane flight 
manual (AFM) to prohibit use of the wing fuel boost pumps for defueling 
under certain conditions; installing a placard; doing other specified 
investigative and corrective actions as necessary; and modifying the 
boost pumps. The original NPRM also proposed to require the subsequent 
removal of the AFM revision and placard.

Actions Since Original NPRM Was Issued

    Since we issued the original NPRM, we received no comments on the 
original NPRM or on the determination of the cost to the public. 
However, we have learned that the temporary revisions (TRs) were not 
identified in certain service bulletins cited in the original NPRM. 
This information is provided in the table in the next section.

Relevant Service Information

    We have reviewed the TRs identified in the following table.

                                                       TRs
----------------------------------------------------------------------------------------------------------------
    Cessna temporary change--            Dated--                                To the--
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500FM TC-R57-01..................  April 5, 2004......  Cessna Model 500 AFM.
500FM TC-R57-02..................  April 5, 2004......  Cessna Model 500 AFM.
500FM TC-R57-03..................  April 5, 2004......  Cessna Model 500 AFM.
55BFM TC-R10-07..................  March 17, 2004.....  Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-08..................  March 17, 2004.....  Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-09..................  March 17, 2004.....  Cessna Model 550 Citation Bravo AFM.
560FM TC-R13-01..................  March 4, 2004......  Cessna Model 560 Citation V AFM.
560FM TC-R13-02..................  March 4, 2004......  Cessna Model 560 Citation V AFM.
560FM TC-R13-03..................  March 4, 2004......  Cessna Model 560 Citation V AFM.
56FMA TC-04-01...................  March 4, 2004......  Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-02...................  March 4, 2004......  Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-03...................  March 4, 2004......  Cessna Model 560 Citation Ultra AFM.
56FMB TC-R03-10..................  March 12, 2004.....  Cessna Model 550 AFM.
56FMB TC-R03-11..................  March 12, 2004.....  Cessna Model 560 AFM.
56FMB TC-R03-12..................  March 12, 2004.....  Cessna Model 560 AFM.
S55CA TC-04-01...................  July 8, 2004.......  Cessna Model S550 Citation S/II AFM.
S55CA TC-04-02...................  July 8, 2004.......  Cessna Model S550 Citation S/II AFM.
S55CA TC-04-03...................  July 8, 2004.......  Cessna Model S550 Citation S/II AFM.
S55FM TC-04-01...................  March 4, 2004......  Cessna Model S550 Citation S/II AFM.
S55FM TC-04-02...................  March 4, 2004......  Cessna Model S550 Citation S/II AFM.
S55FM TC-04-03...................  March 4, 2004......  Cessna Model S550 Citation S/II AFM.
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    The TRs prohibit use of the wing fuel boost pumps for defueling 
under certain conditions. Accomplishing the actions specified in the 
service information described in the original and supplemental NPRMs is 
intended to adequately address the unsafe condition.

FAA's Determination and Proposed Requirements of the Supplemental NPRM

    The changes discussed above expand the scope of the original NPRM; 
therefore, we have determined that it is necessary to reopen the 
comment period to provide additional opportunity for public comment on 
this supplemental NPRM.

Costs of Compliance

    There are about 2,397 airplanes of the affected design in the 
worldwide fleet. The following table provides the estimated costs for 
U.S. operators to comply with this supplemental NPRM.

                                                 Estimated Costs
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                                                                                         Number  of
                                          Work     Average                   Cost per      U.S.-
      Applicable service bulletin         hours     hourly       Parts       airplane    registered   Fleet cost
                                                  labor rate                             airplanes
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SB500-28-12............................      20          $65       $2,229       $3,529          444   $1,566,876

[[Page 61582]]

 
SBS550-28-08...........................      12           65          102          882          126      111,132
SB550-28-14............................       8           65        1,992        2,512          469    1,178,128
SB550-28-15............................       8           65        1,936        2,456          194      476,464
SB560-28-10............................      12           65        1,949        2,729          428    1,168,012
SB560-28-11............................       8           65        1,052        1,572          101      158,772
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Authority for This Rulemaking

    Title 49 of the United States Code specifies the FAA's authority to 
issue rules on aviation safety. Subtitle I, section 106, describes the 
authority of the FAA Administrator. Subtitle VII, Aviation Programs, 
describes in more detail the scope of the Agency's authority.
    We are issuing this rulemaking under the authority described in 
subtitle VII, part A, subpart III, section 44701, ``General 
requirements.'' Under that section, Congress charges the FAA with 
promoting safe flight of civil aircraft in air commerce by prescribing 
regulations for practices, methods, and procedures the Administrator 
finds necessary for safety in air commerce. This regulation is within 
the scope of that authority because it addresses an unsafe condition 
that is likely to exist or develop on products identified in this 
rulemaking action.

Regulatory Findings

    We have determined that this proposed AD would not have federalism 
implications under Executive Order 13132. This proposed AD would 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.
    For the reasons discussed above, I certify that the proposed 
regulation:
    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 regulatory evaluation of the estimated costs to 
comply with this supplemental NPRM and placed it in the AD docket. See 
the ADDRESSES section for a location to examine the regulatory 
evaluation.

List of Subjects in 14 CFR Part 39

    Air transportation, Aircraft, Aviation safety, Safety.

The Proposed Amendment

    Accordingly, under the authority delegated to me by the 
Administrator, the FAA proposes to amend 14 CFR part 39 as follows:

PART 39--AIRWORTHINESS DIRECTIVES

    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]

    2. The Federal Aviation Administration (FAA) amends Sec.  39.13 by 
adding the following new airworthiness directive (AD):

Cessna Aircraft Company: Docket No. FAA-2005-20970; Directorate 
Identifier 2004-NM-53-AD.

Comments Due Date

    (a) The FAA must receive comments on this AD action by November 
21, 2005.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to the Cessna airplanes listed in Table 1 of 
this AD, certificated in any category.

                         Table 1.--Applicability
------------------------------------------------------------------------
           Airplane model(s)                       Serial Nos.
------------------------------------------------------------------------
500 and 501...........................  0001 through 0689 inclusive.
S550..................................  0001 through 0160 inclusive.
550 and 551...........................  0002 through 0733 inclusive.
550...................................  0801 through 1075 inclusive.
560...................................  0001 through 0648 inclusive.
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD was prompted by a report of a chafed electrical 
wiring harness, which was arcing inside the fuel tank. We are 
issuing this AD to prevent potential fuel vapor ignition in a fuel 
tank, which could result in explosion and loss of the airplane.

Compliance

    (e) You are responsible for having the actions required by this 
AD performed within the compliance times specified, unless the 
actions have already been done.

Service Information

    (f) The term ``service bulletin'' as used in this AD refers to 
the applicable service bulletin listed in Table 2 of this AD.

                                          Table 2.--Service Information
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                                                              Use Cessna
           For Cessna model--              Having serial        service                    Dated--
                                             numbers--        bulletin--
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500 and 501 airplanes..................         0001-0689       SB500-28-12  June 14, 2004.
S550 airplanes.........................         0001-0160      SBS550-28-08  May 7, 2004.
550 and 551 airplanes..................         0002-0733       SB550-28-14  December 2, 2003.
550 airplanes..........................         0801-1075       SB550-28-15  January 20, 2004.
560 airplanes..........................         0001-0538       SB560-28-10  April 23, 2004.
560 airplanes..........................         0539-0648       SB560-28-11  March 12, 2004.
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[[Page 61583]]

AFM Revision

    (g) Within 25 flight hours after the effective date of this AD: 
Revise the Limitations section of the applicable Cessna airplane 
flight manual (AFM) to prohibit use of the wing fuel boost pumps for 
defueling under certain conditions, by inserting the applicable 
temporary change identified in Cessna Service Bulletin SB550-28-14, 
dated December 2, 2003, or identified in Table 3 of this AD.

                                           Table 3.--Temporary Changes
----------------------------------------------------------------------------------------------------------------
    Cessna temporary change--            Dated--                                To the--
----------------------------------------------------------------------------------------------------------------
500FM TC-R57-01..................  April 5, 2004......  Cessna Model 500 AFM.
500FM TC-R57-02..................  April 5, 2004......  Cessna Model 500 AFM.
500FM TC-R57-03..................  April 5, 2004......  Cessna Model 500 AFM.
55BFM TC-R10-07..................  March 17, 2004.....  Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-08..................  March 17, 2004.....  Cessna Model 550 Citation Bravo AFM.
55BFM TC-R10-09..................  March 17, 2004.....  Cessna Model 550 Citation Bravo AFM.
560FM TC-R13-01..................  March 4, 2004......  Cessna Model 560 Citation V AFM.
560FM TC-R13-02..................  March 4, 2004......  Cessna Model 560 Citation V AFM.
560FM TC-R13-03..................  March 4, 2004......  Cessna Model 560 Citation V AFM.
56FMA TC-04-01...................  March 4, 2004......  Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-02...................  March 4, 2004......  Cessna Model 560 Citation Ultra AFM.
56FMA TC-04-03...................  March 4, 2004......  Cessna Model 560 Citation Ultra AFM.
56FMB TC-R03-10..................  March 12, 2004.....  Cessna Model 560 AFM.
56FMB TC-R03-11..................  March 12, 2004.....  Cessna Model 560 AFM.
56FMB TC-R03-12..................  March 12, 2004.....  Cessna Model 560 AFM.
S55CA TC-04-01...................  July 8, 2004.......  Cessna Model S550 Citation S/II AFM.
S55CA TC-04-02...................  July 8, 2004.......  Cessna Model S550 Citation S/II AFM.
S55CA TC-04-03...................  July 8, 2004.......  Cessna Model S550 Citation S/II AFM.
S55FM TC-04-01...................  March 4, 2004......  Cessna Model S550 Citation S/II AFM.
S55FM TC-04-02...................  March 4, 2004......  Cessna Model S550 Citation S/II AFM.
S55FM TC-04-03...................  March 4, 2004......  Cessna Model S550 Citation S/II AFM.
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Placard Installation

    (h) Within 25 flight hours after the effective date of this AD: 
Install a placard close to the fuel quantity gauge, in accordance 
with the Accomplishment Instructions of the service bulletin. In 
addition to the specifications in the service bulletin, the letters 
on the placard must be at least \1/4\-inch tall.

Inspection and Modification

    (i) Within 300 flight hours after the effective date of this AD: 
Do the actions specified in paragraphs (i)(1) and (i)(2) of this AD 
in accordance with the Accomplishment Instructions of the service 
bulletin.
    (1) Do a detailed inspection for chafed wiring of the wing fuel 
boost pumps, and, before further flight thereafter, do all 
applicable corrective and other specified actions.
    (2) Modify the wing fuel boost pumps.

    Note 1: For the purposes of this AD, a detailed inspection is: 
``An intensive examination of a specific item, installation, or 
assembly to detect damage, failure, or irregularity. Available 
lighting is normally supplemented with a direct source of good 
lighting at an intensity deemed appropriate. Inspection aids such as 
mirror, magnifying lenses, etc., may be necessary. Surface cleaning 
and elaborate procedures may be required.''

    (j) Before further flight after the inspection and modification 
required by paragraph (i) of this AD, remove the AFM temporary 
change and placard required by paragraphs (g) and (h) of this AD.

Reporting Clarification

    (k) Although the service bulletin specifies to submit certain 
information to the manufacturer, this AD does not include that 
requirement.

Alternative Methods of Compliance (AMOCs)

    (l) The Manager, Wichita Aircraft Certification Office (ACO), 
FAA, has the authority to approve AMOCs for this AD, if requested in 
accordance with the procedures found in 14 CFR 39.19.

    Issued in Renton, Washington, on October 18, 2005.
Kevin M. Mullin,
Acting Manager, Transport Airplane Directorate, Aircraft Certification 
Service.
[FR Doc. 05-21309 Filed 10-24-05; 8:45 am]
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