AD 2012-06-24
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky | Aircraft Corporation | Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters |
Unsafe Condition
Mislocated aluminum wire mesh in the blade skin leaves portions of the graphite torque tube (spar) region unprotected from a lightning strike.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 60 days, inspect the upper and lower airfoils of each tail rotor blade to determine if the wire mesh is mislocated. If mislocated, replace the blade with an airworthy blade before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 60 days
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Affected Aircraft
Sikorsky Aircraft Corporation Model S-92A helicopters with tail rotor blade assembly part numbers 92170-11000-044, -045, and -046, with a serial number with a prefix of 'A111' and a number equal to or less than '-00585', installed.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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