Airworthiness directives › 2012-21-09
AD 2012-21-09 Airworthiness Directives; Eurocopter France Helicopters
Applicability*9
This AD becomes effective November 7, 2012.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Rao Edupuganti, Aviation Safety Engineer, Regulations and Policy Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5110; email rao.edupuganti@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
(1) Eurocopter Emergency Alert Service Bulletin No. 63A011, Revision 0, dated August 1, 2012, which is not incorporated by reference, contains additional information about the subject of this AD. For service information identified in this AD, contact American Eurocopter Corporation, 2701 N. Forum Drive, Grand Prairie, TX 75052; telephone (972) 641-0000 or (800) 232-0323; fax (972) 641-3775; or at http://www.eurocopter.com/techpub . You may review a copy of the service information at the FAA, Office of the Regional Counsel, Southwest Region, 2601 Meacham Blvd., Room 663, Fort Worth Texas 76137. (2) The subject of this AD is addressed in European Aviation Safety Agency AD No. 2012-0144-E, dated August 1, 2012.
Unsafe condition
(1) Within 10 hours time-in-service (TIS), inspect the tapered housing of the epicyclic module to determine if there is a through-hole upstream of the magnetic plug. (i) Remove the magnetic plug and support from the housing. (ii) Determine if the hole above the magnetic plug is a through-hole as shown in figures 1 and 2 to paragraph (e)(1)(ii) of this AD. ER23OC12.000 ER23OC12.001 (2) If the hole above the magnetic plug is not a through-hole, before further flight, replace the epicyclic module with an airworthy epicyclic module. (3) Do not install an epicyclic module, P/N 332A32-5021-00 or 332A32-5021-01, on any helicopter unless it has been inspected as required by this AD.
Affected ADs
This AD defines the unsafe condition as a missing through-hole, joining the integrated collector to the magnetic plug. This condition could result in failure of the chip-detector system to detect deterioration of the main rotor mast lift bearing, failure of the lift bearing, and subsequent loss of control of the helicopter.
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