Airworthiness directives › 2020-18-11
AD 2020-18-11 Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Applicability*9
This AD defines the unsafe condition as the presence of sealant on a sliding door (door). This condition could result in the door failing to jettison, preventing helicopter occupants from exiting the helicopter during an emergency.
Compliance
(1) The Manager, Rotorcraft Standards Branch, FAA, may approve AMOCs for this AD. Send your proposal to: Matt Fuller, AD Program Manager, Operational Safety Branch, Airworthiness Products Section, General Aviation and Rotorcraft Unit, 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, the FAA suggests 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 (now European Union Aviation Safety Agency) (EASA) AD 2015-0163R1, dated April 27, 2016. You may view the EASA AD on the internet at https://www.regulations.gov in Docket No. FAA-2015-3941.
Unsafe condition
(1) Within 25 hours time-in-service after the effective date of this AD: (i) For helicopters with adhesive seal part number (P/N) 117-800201.01 installed on an exterior or interior door, remove adhesive seal P/N 117-800201.01 from the interior and exterior of each door, remove any adhesive using solvent (CM 202 or equivalent) and remove any grease using methyl ethyl ketone (CM 217 or equivalent), and install adhesive seal P/N 117-800201.02. Refer to Figures 1 through 4 of Airbus Helicopters Alert Service Bulletin MBB-BK117-20A-114, Revision 2, dated March 30, 2016 (ASB MBB-BK117-20A-114) for a depiction of the seal installation areas. (ii) For helicopters without adhesive seal P/N 117-800201.01 installed, clean the seal installation areas using solvent (CM 202 or equivalent), remove any grease using methyl ethyl ketone (CM 217 or equivalent), and install adhesive seal P/N 117-800201.02. Refer to Figures 1 through 4 of ASB MBB-BK117-20A-114 for a depiction of the seal installation areas. (iii) Revise the Normal Procedures section, Preflight Exterior Check, under both “Fuselage—right side” and “Fuselage—left side” of the existing Rotorcraft Flight Manual for your helicopter by adding the information in Figure 1 to paragraph (e)(1)(iii) of this AD or by adding the information for “Jettisonable sliding door installed, after ASB-BK117-20A-114” of the following as applicable for your helicopter: MBB Helicopters Flight Manual MBB-BK117 A-3, Revision 17.1, MBB Helicopters Flight Manual MBB-BK117 A-4, Revision 16.1, MBB Helicopters Flight Manual MBB-BK117 B-1, Revision 20.1, Eurocopter Flight Manual BK117 B-2, Revision 21.2, or Eurocopter Flight Manual BK117 C-1, Revision 30.1, each dated March 25, 2015. Using a different document with information identical to the information for the “Jettisonable sliding door installed, after ASB-BK117-20A-114” procedures in the Flight Manual revision specified in this paragraph for your helicopter is acceptable for compliance with the requirements of this paragraph. This action may be performed by the owner/operator (pilot) holding at least a private pilot certificate and must be entered into the aircraft records showing compliance with this AD in accordance with § 43.9(a)(1) through (4) and § 91.417(a)(2)(v). The record must be maintained as required by § 91.417, § 121.380, or § 135.439. ER06OC20.000 (2) After the effective date of this AD, do not install adhesive seal P/N 117-800201.01 on any helicopter door.
Affected ADs
This AD applies to Airbus Helicopters Deutschland GmbH Model MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, MBB-BK 117 B-2, and MBB-BK 117 C-1 helicopters, certificated in any category.
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