AD 81-06-53 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky Aircraft Corporation | S62A | Airworthiness Directives; SIKORSKY AIRCRAFT DIVISION Model S-62 Series Helicopters |
Unsafe Condition
Cracked rotor brake discs could result in failure of the rotor brake system, leading to unsafe operation.
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Required Actions
Inspect rotor brake discs visually and with dye penetrant; replace specific part numbers with newer ones by July 31, 1982; deactivate brake system temporarily if needed; report discrepancies within 24 hours.
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Compliance Time
Prior to the next flight and prior to the first flight of each day thereafter; within the next 10 flight hours, and every 120 flight hours thereafter; not later than July 31, 1982; within the next 10 flight hours or prior to accumulating 120 flight hours since new or last inspection.
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Affected Aircraft
Sikorsky Aircraft Division Model S-62 series helicopters equipped with P/N S6235-20213 (Goodyear 9430301) or P/N S62350-22013-101 (Goodyear 4000277) rotor brake discs.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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