AD 2011-19-01 R1

AD Final Rules - 2011-19-01 R1.pdf
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AD Number:
2011-19-01 R1
Document Type:
AD Final Rules
Docket Number:
FAA-2012-0802
Subject Heading:
Airworthiness Directives; Airbus Airplanes
Subject:
Instruments
Status:
Current
Citation:
Federal Register Volume 77, Number 152 (Tuesday, August 7, 2012)
Citation Publish Date:
08/07/2012
Effective Date:
08/22/2012
Make:
Airbus SAS
Model:
A318-111 | A318-112 | A318-121 | A318-122 | A319-111 | A319-112 | A319-113 | A319-114 ...Show more
Product Type:
Aircraft
Product Subtype:
Large Airplane
Affected AD:
Superseded AD:
2011-19-01
Affected By:
Superseded By:
Service/Office:
Office of Primary Responsibility:
CFR Part Reference:
Part 39
Comments:
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[Federal Register Volume 77, Number 152 (Tuesday, August 7, 2012)]


[Rules and Regulations]


[Pages 46929-46932]


From the Federal Register Online via the Government Printing Office [www.gpo.gov]


[FR Doc No: 2012-18625]


––––––––––––––––––––––––––––––––––


DEPARTMENT OF TRANSPORTATION


Federal Aviation Administration


14 CFR Part 39


[Docket No. FAA-2012-0802; Directorate Identifier 2012-NM-124-AD; Amendment 39-17145;


AD 2011-19-01 R1]


RIN 2120-AA64


Airworthiness Directives; Airbus Airplanes


AGENCY:
 
Federal Aviation Administration (FAA), DOT.


ACTION:
 
Final rule; request for comments.


––––––––––––––––––––––––––––––––––


SUMMARY:
 
We are revising an existing airworthiness directive (AD) that applies to all Airbus


Model A318, A319, A320, and A321 series airplanes. The existing AD currently requires revising the


airplane flight manual (AFM) to include a procedure intended to address the unsafe condition, an


inspection of the firewall connector for signs of arcing if an integrated drive generator (IDG) (or


generator (GEN)) was shut down in-flight automatically or using the AFM procedure, and corrective


action if necessary; and provides an optional terminating action for certain AFM revision and


inspections. This AD was prompted by the potential for an inadvertent error by flightcrew to use the


IDG switch instead of the GEN switch when doing the AFM display unit failure procedure required


by the existing AD. This AD retains the actions required by the existing AD and clarifies certain


terminology. We are issuing this AD to prevent transient loss of certain systems, which could result


in the reduced ability of the flightcrew to cope with adverse flight conditions.


DATES:
 
This AD becomes effective August 22, 2012.


The Director of the Federal Register approved the incorporation by reference of a certain


publication listed in this AD as of September 28, 2011 (76 FR 56279, September 13, 2011).


The Director of the Federal Register approved the incorporation by reference of certain other


publications listed in this AD as of August 13, 2004 (69 FR 45243, July 29, 2004).


We must receive comments on this AD by September 21, 2012.


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.
2


•
 
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, between 9 a.m.


and 5 p.m., Monday through Friday, except Federal holidays.


Examining the AD Docket


You may examine the AD docket on the Internet at http://www.regulations.gov; or in person at


the Docket Operations office 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 Operations 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:
 
Sanjay Ralhan, Aerospace Engineer, International


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


98057-3356; telephone (425) 227-1405; fax (425) 227-1149.


SUPPLEMENTARY INFORMATION:


Discussion


On September 1, 2011, we issued AD 2011-19-01, Amendment 39-16806 (76 FR 56279,


September 13, 2011). That AD required actions intended to address an unsafe condition on the


products listed above.


Since we issued AD 2011-19-01, Amendment 39-16806 (76 FR 56279, September 13, 2011), we


have received information that there is potential for an inadvertent error by flightcrew to use the


''IDG'' (integrated drive generator) switch instead of the ''GEN'' (abbreviation for generator) switch


when doing the AFM display unit failure procedure in this AD that requires turning off the integrated


drive generator under certain conditions. We find that it is necessary to clarify our intent with the use


of the acronym ''IDG'' in relation to ''GEN,'' and to revise paragraphs (h), (i), and (k) of this AD to


refer to ''GEN.''


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 the State of Design Authority,


we have been notified of the unsafe condition described in the MCAI and service information


referenced above. We are issuing this AD because we evaluated all pertinent information and


determined the unsafe condition exists and is likely to exist or develop on other products of the same


type design.


FAA's Determination of the Effective Date


An unsafe condition exists that requires the immediate adoption of this AD. The FAA has found


that the risk to the flying public justifies waiving notice and comment prior to adoption of this rule


because transient loss of certain systems could result in the reduced ability of the flightcrew to cope


with adverse flight conditions. Therefore, we determined that notice and opportunity for public


comment before issuing this AD are impracticable and that good cause exists for making this


amendment effective in fewer than 30 days.