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Airworthiness Directive

AD 99-15-14: Sikorsky Aircraft-Manufactured Model CH-54B Helicopters

Airworthiness Directives; Sikorsky Aircraft-Manufactured Model CH-54B Helicopters

Effective
Aug 26, 1999
Published
Jul 22, 1999
Registered aircraft
2

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

  • Sikorsky CH-54B
  • Only with: Main gearbox second stage lower planetary plate P/N 6435-20516-101 installed.
  • Only with: Main gearbox second stage lower planetary plate P/N 6435-20516-101 installed.

Applicability

From the AD text
CH-54B helicopters with main gearbox second stage lower planetary plate (plate), part number (P/N) 6435-20516-101, installed, certificated in any category.

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