Airworthiness directives › 2013-12-04
AD 2013-12-04 Airworthiness Directives; Eurocopter France Helicopters
Applicability*9
This AD becomes effective August 2, 2013.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Chinh Vuong, Aviation Safety Engineer, Safety Management Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email chinh.vuong@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC.
Required actions
The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2011-0190, dated September 30, 2011. You may view the EASA AD at http://www.regulations.gov by searching for and locating it in Docket No. FAA-2012-1214.
Unsafe condition
(1) Within 110 hours time-in-service (TIS): (i) For helicopters without an emergency buoyancy system, remove the fuel tank drain plugs listed in the Accomplishment Instructions, paragraph 3.B.2.b., of Eurocopter Alert Service Bulletin (ASB) No. EC155-53A031, Revision 1, dated September 21, 2011 (ASB 155); ASB No. AS365-53.00.50, Revision 1, dated September 21, 2011 (ASB 365), or ASB No. AS366-53.11, Revision 1, dated September 21, 2011 (ASB 366), as appropriate for your model helicopter. (ii) For the Model SA-365N, SA-365N1, AS-365N2, and AS 365 N3 helicopters, if there is an optional sixth fuel tank installed, install a self-sealing drain valve in accordance with paragraph 3.B.2.c. of ASB 365. (2) Within six months: (i) For helicopters with an emergency buoyancy system, modify the fuel tank drain system in accordance with the Accomplishment Instructions, paragraphs 3.B.2.a.1. through 3.B.2.a.3, of the ASB appropriate for your model helicopter. (ii) For the Model SA-365N, SA-365N1, AS-365N2, AS 365 N3 helicopters, if there is an optional sixth fuel tank installed, install a self-sealing drain valve in accordance with paragraph 3.B.2.c. of ASB 365.
Affected ADs
This AD defines the unsafe condition as a closed fuel tank drain that, in the event of a fuel leak, could result in fuel accumulating in an area containing electrical equipment or other ignition source. This condition could result in a fire in the helicopter.
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