Airworthiness directives › 2015-10-05
AD 2015-10-05 Airworthiness Directives; Airbus Helicopters (Previously Eurocopter France) Helicopters
Applicability*9
This AD becomes effective June 5, 2015.
Compliance
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Martin R. Crane, Aviation Safety Engineer, Regulations Group, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone (817) 222-5112; email martin.r.crane@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. 2014-0214, dated September 24, 2014. You may view the EASA AD on the Internet at http://www.regulations.gov in Docket No. FAA-2015-1570.
Unsafe condition
Before further flight: (1) Inspect each external life raft deployment system left-hand and right-hand junction unit for corrosion in the areas shown in Figure 3 of Airbus Helicopters Alert Service Bulletin (ASB) No. EC155-05A027, Revision 1, dated September 1, 2014 (ASB No. EC155-05A027), or ASB No. AS365-05.00.67, Revision 1, dated September 1, 2014, (ASB No. AS365-05.00.67), as applicable to your helicopter model. (2) If there is corrosion, either remove the corrosion and apply a protective coating, primer, and paint to the surface or replace the junction unit with an airworthy junction unit. (3) Measure the diameter of the junction unit cover and of each (internal and external) junction unit pulley for operational clearance. If the clearance is greater than 0.029 inch (0.75 mm) as depicted in Figure 4 of ASB No. EC155-05A027 or Figure 5 of ASB No. AS365-05.00.67, as applicable to your helicopter model, replace the junction unit with an airworthy junction unit. (4) Inspect the drainage hole on the upper face of the junction unit cover, and if it is unplugged, plug it. (5) Inspect the drainage hole on the lower surface of the junction unit cover, and if it is plugged, remove the plug.
Affected ADs
This AD defines the unsafe condition as corrosion damage inside a junction unit, which can prevent a deployment handle from functioning correctly. This condition could result in failure of an external life raft to deploy, preventing evacuation of passengers during an emergency.
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