Airworthiness directives › 2019-07-07
AD 2019-07-07 Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Applicability*9
This AD becomes effective May 24, 2019.
Compliance
(1) The Manager, Safety Management Section, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Matt Fuller, Senior 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.
Required actions
The subject of this AD is addressed in European Aviation Safety Agency (EASA) AD No. 2016-0142, dated July 19, 2016, and EASA AD No. 2016-0142R1, dated April 12, 2018. You may view the EASA ADs on the internet at http://www.regulations.gov in Docket No. FAA-2016-9395.
Unsafe condition
(1) Within 50 hours time-in-service (TIS): (i) Remove the swashplate bellows (bellows) part number (P/N) 105-10113.05, P/N 4638305043, P/N 4619305044, or B623M20X2240 from the swashplate. (ii) Inspect the swashplate by following the Accomplishment Instructions, paragraph 3.B.1.(h) through 3.B.1.(k) of Airbus Helicopters Alert Service Bulletin (ASB) BO105-40A-107, Revision 4, dated May 23, 2016 (ASB BO105-40A-107); ASB BO105 LS-40A-12, Revision 4, dated May 23, 2016 (ASB BO105 LS-40A-12); ASB MBB-BK117-40A-115, Revision 4, dated May 23, 2016 (ASB MBB-BK117-40A-115); or ASB MBB-BK117 C-2-62A-007, Revision 4, dated May 23, 2016 (ASB MBB-BK117 C-2-62A-007); or paragraph 3.B.1.5 through 3.B.1.8 of Airbus Helicopters ASB MBB-BK117 D-2-62A-003, Revision 2, dated May 23, 2016 (ASB MBB-BK117 D-2-62A-003); whichever is applicable to your helicopter. If there is corrosion on a ball bearing, you are not required to contact Airbus Helicopters customer support; instead, before further flight, replace the ball bearing. (2) Within 400 hours TIS after complying with the actions in paragraph (1) of this AD, and thereafter at intervals not to exceed 400 hours TIS, inspect the swashplate by following the Accomplishment Instructions, paragraph 3.B.3 of ASB BO105-40A-107, ASB BO105 LS-40A-12, ASB MBB-BK117-40A-115, ASB MBB-BK117 C-2-62A-007, or ASB MBB-BK117 D-2-62A-003. (3) Do not install a bellows P/N 105-10113.05, P/N 4619305044, or P/N 4638305043 or a gearbox with a bellows P/N 105-10113.05, P/N 4619305044, or P/N 4638305043 on any helicopter.
Affected ADs
This AD defines the unsafe condition as a loose bellows clamp. This condition can cause loss of the bellows, contact of the bellows with the main rotor blades, main rotor mast, and tail rotor, and subsequent loss of helicopter control.
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