AD 2000-01-11

final rule
Data completeness: 70%

Airworthiness Directives; Eurocopter Deutschland GMBH Model MBB- BK 117 Helicopters

AD Number
2000-01-11
Status
final_rule
Effective Date
Product Category
aircraft
Docket
Docket No. 99-SW-60-AD
FR Citation
65 FR 2017

Applicability

TypeManufacturerModelDetails
aircraft Eurocopter Deutschland GMBH Model MBB- BK 117 Airworthiness Directives; Eurocopter Deutschland GMBH Model MBB- BK 117 Helicopters

Unsafe Condition

Fatigue failure of the tension-torsion (TT) strap, leading to main rotor blade separation and potential loss of control.

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

Required Actions

Inspect and determine the age and number of flights on the TT strap. Remove any unairworthy TT straps as necessary. Create a component log card or equivalent record.

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

Compliance Time

Before further flight

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

Affected Aircraft

Eurocopter Deutschland GMBH Model MBB-BK 117 helicopters.

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

Source: Official FAA Source ↗

Retrieved: Apr 6, 2026

Rights: U.S. Government Public Domain

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