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 Transportat-
ion (DOT).
ACTION: Notice of proposed rulemaking (NPRM).
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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 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:
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TOTAL COST PER TOTAL COST ON
LABOR COST PARTS COST AIRPLANE U.S. OPERATORS
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1 work-hour x
$80 per hour = $80.... Not Applicable.. $80 $40,960
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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:
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TOTAL COST PER
LABOR COST PARTS COST AIRPLANE
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1 work-hour x $80 per hour = $80...... $10 $90
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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: