AD 2003-14-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky | Aircraft Corporation Model S76A | Airworthiness Directives; Sikorsky Aircraft Corporation Model S76A, B, and C Helicopters |
Unsafe Condition
Manufacture of main landing gear brake discs, part number 5014067, using inferior materials may result in reduced braking performance and subsequent loss of control of the helicopter.
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Required Actions
Within 60 days, inspect for the presence of brake discs, part number 5014067. If found, within 90 days, remove and replace them with part number 5007672. Re-identify brake assemblies as specified. Until replacement is complete, revise the Rotorcraft Flight Manual to increase takeoff and landing distances by a factor of 1.67.
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Compliance Time
Within 90 days for disc replacement and re-identification of brake assemblies.
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Affected Aircraft
Sikorsky Aircraft Corporation Model S76A, B, and C helicopters with main landing gear brake assembly part numbers 5007555, 5007555-1, or 5007555-2 installed.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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