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Airworthiness Directive

AD 2013-25-13: Sikorsky Aircraft Corporation (Sikorsky) Helicopters

Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters

Effective
Feb 25, 2014
Published
Jan 21, 2014
Registered aircraft
4

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 S-70
  • Sikorsky S-70 (UH-60A)
  • Sikorsky S-70A
  • Sikorsky S-70C
  • Sikorsky S-70C(M)
  • Only with: With any of the listed main rotor, tail rotor servo, gearbox, swashplate, tie rod, bellcrank or related parts installed (e.g., spindle and liner assembly P/N 38023-10374-041, main rotor hub P/N 70070-10046-055/-056, tail rotor servo assembly P/N 70410-06520-044 through -046).
  • Only with: With any of the listed main rotor, tail rotor servo, gearbox, swashplate, tie rod, bellcrank or related parts installed (e.g., spindle and liner assembly P/N 38023-10374-041, main rotor hub P/N 70070-10046-055/-056, tail rotor servo assembly P/N 70410-06520-044 through -046).

Applicability

From the AD text
This AD applies to Model S-70, S-70A, and S-70C helicopters, certificated in any category, with the following parts installed: (1) Spindle and liner assembly, part number (P/N) 38023-10374-041; (2) Main Rotor Hub, P/N 70070-10046-055 and -056; (3) Main Rotor Spindle nut, P/N 70102-08105-102; (4) Main Rotor Control Horn, P/N 70102-08111-047; (5) Main Rotor Hub, P/N 70103-08112-041 and -047; (6) Rotating Swashplate, P/N 70104-08001-044 and -045; (7) Main Rotor Shaft Extension, P/N 70351-08186-043; (8) Main Rotor Gear Box Housing, P/N 70351-38110-043, -044, and -045; (9) Main Rotor Shaft, P/N 70351-38131-042; (10) Output Bevel Gear and Shaft, P/N 70358-06620-101 and -102; (11) Left Tie Rod Assembly, P/N 70400-08115-043, -045, -046, and -047; (12) Forward Bellcrank Support Assembly, P/N 70400-08162-042; (13) Lateral Servo Bellcrank, P/N 70400-08166-041; or (14) Tail Rotor Servo Assembly, P/N 70410-06520-044 through -046.

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