Airworthiness directives › 2019-05-06
AD 2019-05-06 Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Applicability*9
This AD becomes effective April 17, 2019.
Compliance
Special flight permits may be permitted provided the hoist is not used.
Required actions
(1) The Manager, Safety Management Section, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to: David Hatfield, Aviation Safety Engineer, Safety Management Section, Rotorcraft Standards Branch, FAA, 10101 Hillwood Pkwy., Fort Worth, TX 76177; telephone (817) 222-5110; email 9-ASW-FTW-AMOC-Requests@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.
Unsafe condition
Within 90 hours time-in-service (TIS) and thereafter at intervals not to exceed 180 hours TIS: (1) Inspect the hook and determine whether the elastomeric energy absorber has taken a permanent compression set by following the Accomplishment Instructions, paragraphs 2.A and 2.B, of Goodrich Service Bulletin No. 44301-10-17, Revision 4, dated July 26, 2017 (SB 44301-10-17). If the elastomeric energy absorber has taken a permanent compression set, replace the elastomeric energy absorber before the next hoist operation. (2) Replace the retaining ring by following the Accomplishment Instructions, paragraphs 2.D through 2.K, of SB 44301-10-17.
Affected ADs
This AD defines the unsafe condition as detachment of a hook from a hoist cable resulting in in-flight failure of the hoist, which could result in injury to persons being lifted.
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