AD 2007-22-03 R1

AD Final Rules - 2007-22-03 R1.pdf
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AD Number:
2007-22-03 R1
Document Type:
AD Final Rules
Docket Number:
FAA-2009-0997
Subject Heading:
Airworthiness Directives; Airbus Model A300 Airplanes
Subject:
Fuel tank systems
Status:
Current
Citation:
Federal Register: October 27, 2009 (Volume 74, Number 206)
Citation Publish Date:
10/27/2009
Effective Date:
11/12/2009
Make:
Airbus
Model:
A300 B2-1A | A300 B2-1C | A300 B2-203 | A300 B2K-3C | A300 B4-103 | A300 B4-203 | A300 B4-2C
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
2007-22-03
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
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[Federal Register: October 27, 2009 (Volume 74, Number 206)]


[Rules and Regulations]


[Page 55118-55121]


From the Federal Register Online via GPO Access [wais.access.gpo.gov]


[DOCID:fr27oc09-6]


––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2009-0997; Directorate Identifier 2009-NM-158-AD; Amendment 39-16062;


AD 2007-22-03 R1]


RIN 2120-AA64


Airworthiness Directives; Airbus Model A300 Airplanes


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


ACTION:
 
Final rule; request for comments.


––––––––––––––––––––––––––––––––––


SUMMARY:
 
The FAA is revising an existing airworthiness directive (AD), which applies to all


Airbus Model A300 airplanes. That AD currently requires revising the Airworthiness Limitations


Section of the Instructions for Continued Airworthiness to incorporate new limitations for fuel tank


systems. This AD clarifies the intended effect of the AD on spare and on-airplane fuel tank system


components. This AD results from fuel system reviews conducted by the manufacturer. We are


issuing this AD to prevent the potential of ignition sources inside fuel tanks, which, in combination


with flammable fuel vapors caused by latent failures, alterations, repairs, or maintenance actions,


could result in fuel tank explosions and consequent loss of the airplane.


DATES:
 
This AD is effective November 12, 2009.


On November 28, 2007 (72 FR 60240, October 24, 2007), the Director of the Federal Register


approved the incorporation by reference of a certain publication listed in the AD.


We must receive any comments on this AD by December 11, 2009.


ADDRESSES:
 
You may send comments by any of the following methods:


•
 
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.
2


For service information identified in this AD, contact Airbus SAS-EAW (Airworthiness Office),


1 Rond Point Maurice Bellonte, 31707 Blagnac Cedex, France; telephone +33 5 61 93 36 96; fax +33


5 61 93 44 51; e-mail: account.airworth-eas@airbus.com; Internet http://www.airbus.com.


Examining the AD Docket


You may examine the AD docket 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 AD docket contains this AD, the regulatory evaluation, any comments received, and


other information. The street address for the Docket Office (telephone 800-647-5527) is in the


ADDRESSES section. Comments will be available in the AD docket shortly after receipt.


FOR FURTHER INFORMATION CONTACT:
 
Dan Rodina, Aerospace Engineer, International


Branch, ANM-116, FAA, Transport Airplane Directorate, 1601 Lind Avenue SW., Renton,


Washington 98057-3356; telephone (425) 227-2125; fax (425) 227-1149.


SUPPLEMENTARY INFORMATION:


Discussion


On October 15, 2007, we issued AD 2007-22-03, amendment 39-15239 (72 FR 60240, October


24, 2007). That AD applied to all Airbus Model A300 airplanes. That AD required revising the


Airworthiness Limitations Section of the Instructions for Continued Airworthiness to incorporate new


limitations for fuel tank systems.


Critical design configuration control limitations (CDCCLs) are limitation requirements to


preserve a critical ignition source prevention feature of the fuel tank system design that is necessary


to prevent the occurrence of an unsafe condition. The purpose of a CDCCL is to provide instruction


to retain the critical ignition source prevention feature during configuration change that may be


caused by alterations, repairs, or maintenance actions. A CDCCL is not a periodic inspection.


Actions Since AD Was Issued


Since we issued that AD, we have determined that it is necessary to clarify the AD's intended


effect on spare and on-airplane fuel tank system components, regarding the use of maintenance


manuals and instructions for continued airworthiness.


Section 91.403(c) of the Federal Aviation Regulations (14 CFR 91.403(c)) specifies the


following:


No person may operate an aircraft for which a manufacturer's maintenance manual or


instructions for continued airworthiness has been issued that contains an airworthiness


limitation section unless the mandatory * * * procedures * * * have been complied with.


Some operators have questioned whether existing components affected by the new CDCCLs must be


reworked. We did not intend for the AD to retroactively require rework of components that had been


maintained using acceptable methods before the effective date of the AD. Owners and operators of


the affected airplanes therefore are not required to rework affected components identified as


airworthy or installed on the affected airplanes before the required revisions of the airworthiness


limitations section. But once the CDCCLs are incorporated into the airworthiness limitations section,


future maintenance actions on components must be done in accordance with those CDCCLs.