AD 2021-23-18

final rule
Data completeness: 80%

Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters

AD Number
2021-23-18
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. FAA-2021-0779
FR Citation
86 FR 69163

Applicability

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

Unsafe Condition

chafing marks on a wiring harness near the locking washer of the lateral control rod, which could result in in-flight loss of the hoist load and possible personal injury, or could generate a burning smell and possible need for the flight crew to implement the applicable emergency procedure.

AI-generated summary from the source AD text. Verify against the official source before acting.

Required Actions

an inspection of the wiring harness and the routing of the wiring harness for discrepancies (includes damaged wire harnesses and insufficient clearances) and corrective actions (includes repair of wire harnesses and re-routing the wire harness) if necessary, and an update of the Aircraft Maintenance Programme (AMP) to incorporate certain tasks.

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Compliance Time

Within 50 flight hours

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Affected Aircraft

Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 helicopters, certificated in any category, as identified in European Union Aviation Safety Agency (EASA) AD 2020-0246, dated November 10, 2020 (EASA AD 2020-0246).

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Source: Official FAA Source ↗

Retrieved: Apr 4, 2026

Rights: U.S. Government Public Domain

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