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Airworthiness Directive

AD 97-23-07: Eurocopter Deutschland GmbH Model MBB- BK 117 A-1, A-3, A-4, B-1, B-2 and C-1 Helicopters

Airworthiness Directives; Eurocopter Deutschland GmbH Model MBB- BK 117 A-1, A-3, A-4, B-1, B-2 and C-1 Helicopters

Published
Nov 5, 1997
Registered aircraft
12

Models this AD may apply to

AI-extracted — verify against original

Matched from the AD's applicability section. Applicability must be confirmed by a mechanic against the aircraft's records.

Aircraft

  • Certain serial numbers: MBB-BK 117 A-1 7001–7250; MBB-BK 117 A-3 7001–7250; MBB-BK 117 A-4 7001–7250; MBB-BK 117 B-1 7001–7250; MBB-BK 117 B-2 7001–7250; MBB-BK 117 C-1 7500–7520. Only with: With clutch P/N 4639302044 or P/N CL42067-1 installed.
  • Only with: With clutch P/N 4639302044 or P/N CL42067-1 installed.

Applicability

From the AD text
Model MBB-BK 117 A-1, A-3, A-4, B-1, and B-2 helicopters, serial numbers (S/N) 7001 through 7250, and Model MBB-BK 117 C-1 helicopters, S/N 7500 through 7520, with clutch, part number (P/N) 4639302044 or P/N CL42067-1, installed, certificated in any category.

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