AD 87-23-07 R1
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky Aircraft Corporation | S-76A | Airworthiness Directives; SIKORSKY AIRCRAFT DIVISION Model S-76A/B Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-76B | Airworthiness Directives; SIKORSKY AIRCRAFT DIVISION Model S-76A/B Helicopters |
Unsafe Condition
Passenger door locks may jam in the locked position due to a malfunctioning electrical door locking actuator.
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Required Actions
Remove electrical door locking actuators P/N 22020256 in accordance with Sikorsky Alert Service Bulletin 76-52-10A. Alternate means of compliance may be approved by the Manager, Boston Aircraft Certification Office.
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Compliance Time
within the next 25 hours' time in service after the effective date of this AD unless already accomplished
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Affected Aircraft
Sikorsky Model S-76A/B helicopters equipped with electrical door locking actuators installed per Sikorsky Drawing 76088-20016 using P/N 22020256, except those with manual override kit P/N 76070-20097
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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