AD 2018-20-09

final rule
Data completeness: 70%

Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters

AD Number
2018-20-09
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2018-0517
FR Citation
83 FR 49791

Applicability

TypeManufacturerModelDetails
aircraft Airbus Helicopters Deutschland GmbH Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters

Unsafe Condition

Failure of an overhead panel shock mount assembly (shock mount) could result in detachment of the overhead panel and injury to occupants during an emergency landing.

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Required Actions

Install a retaining plate on each shock mount by following the Accomplishment Instructions, paragraphs 3.B.2.1. through 3.B.2.4, of Airbus Helicopters Alert Service Bulletin (ASB) MBB-BK117 C-2-24A-015, Revision 0, dated September 14, 2016, or ASB MBB-BK117 D-2-24A-004, Revision 0, dated September 14, 2016, as applicable to your model helicopter. Re-identify shock mount P/N B246M2035102 as P/N B246M2035966 and shock mount P/N B246M2036101 as P/N B246M2036966 using permanent ink. When the ink is dry, apply varnish over the P/N.

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Compliance Time

Within 300 hours time-in-service

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Affected Aircraft

Model MBB-BK 117 C-2 and Model MBB-BK 117 D-2 helicopters, certificated in any category, with an overhead panel shock mount assembly part number (P/N) B246M2035102 or P/N B246M2036101 installed.

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Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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