AD 2007-02-10

AD Final Rules - 2007-02-10.pdf
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AD Number:
2007-02-10
Document Type:
AD Final Rules
Docket Number:
FAA-2007-26920
Subject Heading:
Airworthiness Directives; Dassault Model Mystere-Falcon 900 and Falcon 900EX Airplanes
Subject:
Oxygen leakage from the third crew member oxygen mask box
Status:
Current
Citation:
Federal Register: January 25, 2007 (Volume 72, Number 16)
Citation Publish Date:
01/25/2007
Effective Date:
02/09/2007
Make:
Dassault Aviation
Model:
Falcon 900EX | Mystere-Falcon 900
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
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[Federal Register: January 25, 2007 (Volume 72, Number 16)]


[Rules and Regulations]


[Page 3345-3347]


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


[DOCID:fr25ja07-1]


–––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2007-26920; Directorate Identifier 2006-NM-244-AD; Amendment 39-14897;


AD 2007-02-10]


RIN 2120-AA64


Airworthiness Directives; Dassault Model Mystere-Falcon 900 and Falcon 900EX Airplanes


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


ACTION:
 
Final rule; request for comments.


–––––––––––––––––––––––––––––––––––


SUMMARY:
 
We are adopting a new airworthiness directive (AD) for the products listed above. This


AD results from mandatory continuing airworthiness information (MCAI) issued by an aviation


authority of another country to identify and correct an unsafe condition on an aviation product. The


MCAI describes the unsafe condition as smoke or fire, which could be fanned by oxygen leakage


from the third crew member oxygen mask box. This AD requires actions that are intended to address


the unsafe condition described in the MCAI.


DATES:
 
This AD becomes effective February 9, 2007.


The Director of the Federal Register approved the incorporation by reference of Dassault Service


Bulletins F900-366 and F900EX-277, both dated July 19, 2006, listed in this AD as of February 9,


2007.


We must receive comments on this AD by March 26, 2007.


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


•
 
DOT Docket Web Site: Go to http://dms.dot.gov and follow the instructions for sending your


comments electronically.


•
 
Fax: (202) 493-2251.


•
 
Mail: Docket Management Facility, U.S. Department of Transportation, 400 Seventh Street,


SW., Nassif Building, Room PL-401, Washington, DC 20590-0001.


•
 
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.


•
 
Federal eRulemaking Portal: http://www.regulations.gov. Follow the instructions for


submitting comments.
2


Examining the AD Docket


You may examine the AD docket on the Internet at http://dms.dot.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) 647-5227) is in the


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


FOR FURTHER INFORMATION CONTACT:
 
Tom Rodriguez, Aerospace Engineer,


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


Renton, Washington 98057-3356; telephone (425) 227-1137; fax (425) 227-1149.


SUPPLEMENTARY INFORMATION:


Streamlined Issuance of AD


The FAA is implementing a new process for streamlining the issuance of ADs related to MCAI.


This streamlined process will allow us to adopt MCAI safety requirements in a more efficient manner


and will reduce safety risks to the public. This process continues to follow all FAA AD issuance


processes to meet legal, economic, Administrative Procedure Act, and Federal Register requirements.


We also continue to meet our technical decision-making responsibilities to identify and correct unsafe


conditions on U.S.-certificated products.


This AD references the MCAI and related service information that we considered in forming the


engineering basis to correct the unsafe condition. The AD contains text copied from the MCAI and


for this reason might not follow our plain language principles.


Discussion


The European Aviation Safety Agency (EASA), which is the Technical Agent for the Member


States of the European Community, has issued EASA Emergency Airworthiness Directive 2006-


0330-E, dated October 25, 2006 (referred to after this as “the MCAI”), to correct an unsafe condition


for the specified products. The MCAI states that a drawing review and further associated inspections


on aircraft have highlighted a potential chafing risk between the third crew member oxygen mask


box, optionally installed in the cockpit ceiling, and feeder cables routed in the area. This situation, if


not corrected, could generate smoke or fire, which could be fanned by oxygen leakage from the box.


The MCAI requires a modification (application of epoxy resin to the oxygen box nuts and rivets),


after a detailed inspection of the feeder cables and wiring for damage and correct location and


corrective actions (repairing the feeder cable, re-routing certain wiring, or installing a protective


plate), if necessary. You may obtain further information by examining the MCAI in the AD docket.


Relevant Service Information


Dassault has issued Service Bulletins F900-366 and F900EX-277, both dated July 19, 2006. The


actions described in this service information are intended to correct the unsafe condition identified in


the MCAI.


FAA's Determination and Requirements of This AD


This product has been approved by the aviation authority of another country, and is approved for


operation in the United States. Pursuant to our bilateral agreement with this State of Design


Authority, they have notified us of the unsafe condition described in the MCAI and service


information referenced above.