Document ID: FAA-2008-0331-0001
Agency: faa
Document Type: Rule
Title: Airworthiness Directives; Cessna Aircraft Company, Models 208 and 208B Airplanes
Posted Date: 2008-03-17T04:00Z

[Federal Register: March 17, 2008 (Volume 73, Number 52)]
[Proposed Rules]               
[Page 14191-14193]
From the Federal Register Online via GPO Access [wais.access.gpo.gov]
[DOCID:fr17mr08-13]                         

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DEPARTMENT OF TRANSPORTATION

Federal Aviation Administration

14 CFR Part 39

[Docket No. FAA-2008-0331; Directorate Identifier 2008-CE-009-AD]
RIN 2120-AA64

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

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

ACTION: Notice of proposed rulemaking (NPRM).

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

SUMMARY: We propose to adopt a new airworthiness directive (AD) for 
certain Cessna Aircraft Company (Cessna) Models 208 and 208B airplanes. 
This proposed AD would require inspection of the left and right wing 
wire bundle(s) and repair or replacement of damaged wire. This proposed 
AD would also require inspecting the wire bundles for correct 
attachment to the anchor points and correcting any deficient 
attachments. This proposed AD results from chafed wiring found on wire 
bundles in the left and right wings containing the auto-control wing 
de-ice system, fuel quantity indication, and low fuel annunciation on 
the Cessna 208B airplanes. Improper installation of wire bundle 
supporting hardware can cause chafed wiring in the affected bundles. We 
are proposing this AD to detect and correct damaged wiring of the auto-
control wing de-ice system, fuel quantity indication, and low fuel 
annunciation systems. This condition could result in incorrect fuel 
quantity indications, loss of low fuel quantity annunciations, or loss 
of the autocontrol wing de-ice system.

DATES: We must receive comments on this proposed AD by May 16, 2008.

ADDRESSES: Use one of the following addresses to comment on this 
proposed AD:
     Federal eRulemaking Portal: Go to http://
www.regulations.gov. Follow the instructions for submitting comments.
     Fax: (202) 493-2251.
     Mail: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590.
     Hand Delivery: U.S. Department of Transportation, Docket 
Operations, M-30, West Building Ground Floor, Room W12-140, 1200 New 
Jersey Avenue, SE., Washington, DC 20590, 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 Company, One Cessna Boulevard, P.O. Box 7706, Wichita, 
KS 67277-7704; telephone: (316) 517-5800; fax: (316) 942-9006.

FOR FURTHER INFORMATION CONTACT: Daniel Hilton, Aerospace Engineer, 
FAA, Wichita Aircraft Certification Office, 1801 Airport Road, Room 
100, Wichita, Kansas 67209; telephone: 316-946-4173; e-mail address: 
daniel.hilton@faa.gov.

SUPPLEMENTARY INFORMATION: 

Comments Invited

    We invite you to send any written relevant data, views, or 
arguments regarding this proposed AD. Send your comments to an address 
listed under the ADDRESSES section. Include the docket number, ``FAA-
2008-0331; Directorate Identifier 2008-CE-009-AD'' at the beginning of 
your comments. We specifically invite comments on the overall 
regulatory, economic, environmental, and energy aspects of the proposed 
AD. We will consider all comments received by the closing date

[[Page 14192]]

and may amend the proposed AD in light of those comments.
    We will post all comments we receive, without change, to http://
www.regulations.gov, including any personal information you provide. We 
will also post a report summarizing each substantive verbal contact we 
receive concerning this proposed AD.

Discussion

    We have reports of chafed wiring found on wire bundles in the left 
and right wings containing the auto-control wing de-ice system, fuel 
quantity indication, and low fuel annunciation on several Cessna Model 
208B airplanes. Improper installation of wire bundle supporting 
hardware can cause chafed wiring in the affected bundles. We are 
proposing this AD to detect and correct damaged wiring of the auto-
control wing de-ice system, fuel quantity indication, and low fuel 
annunciation systems. This condition, if not corrected, could result in 
incorrect fuel quantity indications, loss of low fuel quantity 
annunciations, or loss of the auto-control wing de-ice system.

Relevant Service Information

    We have reviewed Cessna Aircraft Company Service Bulletin CAB08-02, 
dated February 4, 2008.
    The service information describes procedures for:
     Inspecting the left and right wing electrical wire 
bundles;
     Repairing and properly attaching damaged wires; and
     Properly securing loosely attached wires.

FAA's Determination and Requirements of the Proposed AD

    We are proposing this AD because we evaluated all information and 
determined the unsafe condition described previously is likely to exist 
or develop on other products of the same type design. This proposed AD 
would require the inspection of the wire harness and repair or 
replacement of damaged wire.

Costs of Compliance

    We estimate that this proposed AD would affect 512 airplanes in the 
U.S. registry.
    We estimate the following costs to do the proposed inspection:

----------------------------------------------------------------------------------------------------------------
                                                                                 Total cost per   Total cost on
                  Labor cost                              Parts cost                airplane      U.S. operators
----------------------------------------------------------------------------------------------------------------
1 work-hour x $80 per hour = $80.............  Not Applicable.................             $80          $40,960
----------------------------------------------------------------------------------------------------------------

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

------------------------------------------------------------------------
                                                          Total cost per
              Labor cost                   Parts cost        airplane
------------------------------------------------------------------------
1 work-hour x $80 per hour = $80......             $10              $90
------------------------------------------------------------------------

    Warranty credit will be given to the extent specified in Cessna 
Aircraft Company Service Bulletin CAB08-02, dated February 4, 2008.

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 proposed AD and placed it in the AD docket.

Examining the AD Docket

    You may examine the AD docket that contains the proposed AD, the 
regulatory evaluation, any comments received, and other information on 
the Internet at http://www.regulations.gov; or in person at the Docket 
Management Facility between 9 a.m. and 5 p.m., Monday through Friday, 
except Federal holidays. The Docket Office (telephone (800) 647-5527) 
is located at the street address stated in the ADDRESSES section. 
Comments will be available in the AD docket shortly after receipt.

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 FAA amends Sec.  39.13 by adding the following new AD:

[[Page 14193]]

Cessna Aircraft Company: Docket No. FAA-2008-0331; Directorate 
Identifier 2008-CE-009-AD.

Comments Due Date

    (a) We must receive comments on this airworthiness directive 
(AD) action by May 16, 2008.

Affected ADs

    (b) None.

Applicability

    (c) This AD applies to the following airplane models and serial 
numbers that are certificated in any category:

------------------------------------------------------------------------
              Models                            Serial Nos.
------------------------------------------------------------------------
208..............................  20800001 through 20800415.
208B.............................  208B0001 through 208B1299.
------------------------------------------------------------------------

Unsafe Condition

    (d) This AD results from reports of chafed wiring found on wire 
bundles in the left and right wings containing the auto-control wing 
de-ice system, fuel quantity indication, and low fuel annunciation 
on several Cessna Model 208B airplanes. We are proposing this AD to 
detect and correct damaged wiring of the auto-control wing de-ice 
system, fuel quantity indication, and low fuel annunciation systems. 
This condition, if not corrected, could result in incorrect fuel 
quantity indications, loss of low fuel quantity annunciations, or 
loss of the auto-control wing de-ice system.

Compliance

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

------------------------------------------------------------------------
           Actions                 Compliance            Procedures
------------------------------------------------------------------------
(1) Inspect the left and      Within the next 200   Follow Cessna
 right wing electrical wire    hours time-in-        Aircraft Company
 bundles at the anchor         service after the     Service Bulletin
 attach points for loose and   effective date of     CAB08-02, dated
 damaged wiring.               this AD, or within    February 4, 2008.
                               12 months after the
                               effective date of
                               this AD, whichever
                               comes first.
(2) If, as a result of the    Before further        Follow Cessna
 inspection required by        flight after the      Aircraft Company
 paragraph (e)(1) of this      inspection required   Service Bulletin
 AD, damaged wires are         by paragraph (e)(1)   CAB08-02, dated
 found, repair or replace      of this AD.           February 4, 2008.
 damaged wires and properly
 attach wire bundle.
(3) If, as a result of the    Before further        Follow Cessna
 inspection required by        flight after the      Aircraft Company
 paragraph (e)(1) of this      inspection required   Service Bulletin
 AD, loosely attached wires    by paragraph (e)(1)   CAB08-02, dated
 were found, secure any        of this AD.           February 4, 2008.
 wires that are loosely
 attached and properly
 attach wire bundle
 supporting hardware.
------------------------------------------------------------------------

Alternative Methods of Compliance (AMOCs)

    (f) The Manager, Wichita Aircraft Certification Office, FAA, has 
the authority to approve AMOCs for this AD, if requested using the 
procedures found in 14 CFR 39.19. Send information to ATTN: Daniel 
Hilton, Aerospace Engineer, FAA, Wichita ACO, 1801 Airport Road, 
Room 100, Wichita, Kansas 67209; telephone: 316-946-4173; e-mail 
address: daniel.hilton@faa.gov. Before using any approved AMOC on 
any airplane to which the AMOC applies, notify your appropriate 
principal inspector (PI) in the FAA Flight Standards District Office 
(FSDO), or lacking a PI, your local FSDO.

Related Information

    (g) To get copies of the service information referenced in this 
AD, contact Cessna Aircraft Company, One Cessna Boulevard, P.O. Box 
7706, Wichita, KS 67277-7704; telephone: (316) 517-5800; fax: (316) 
942-9006. To view the AD docket, go to U.S. Department of 
Transportation, Docket Operations, M-30, West Building Ground Floor, 
Room W12-140, 1200 New Jersey Avenue, SE., Washington, DC 20590, or 
on the Internet at http://www.regulations.gov.

    Issued in Kansas City, Missouri, on March 11, 2008.
David R. Showers,
Acting Manager, Small Airplane Directorate, Aircraft Certification 
Service.
 [FR Doc. E8-5269 Filed 3-14-08; 8:45 am]

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