AD 85-15-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky Aircraft Corporation | S-61L | Airworthiness Directives; SIKORSKY AIRCRAFT Model S- 61L, N, and NM Series Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61N | Airworthiness Directives; SIKORSKY AIRCRAFT Model S- 61L, N, and NM Series Helicopters |
| aircraft | Sikorsky Aircraft Corporation | S-61NM | Airworthiness Directives; SIKORSKY AIRCRAFT Model S- 61L, N, and NM Series Helicopters |
Unsafe Condition
Failure of the main rotor horn eyebolt, P/N S6112-23072-101, or eyebolt assembly, P/N S6112-23072-041.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Remove and replace the main rotor horn eyebolt or eyebolt assembly with a new or airworthy part of the same part number having less than 6,800 hours time in service. Special flight permits for up to 6 flight hours may be obtained to reach a base for replacement. Alternate repairs must be approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to further flight if the component has more than 6,800 hours time in service upon receipt of this AD, or prior to accumulating 6,800 hours time in service if the component has 6,800 or less hours. Thereafter, compliance must occur at intervals not exceeding 6,800 hours time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Sikorsky Aircraft Model S-61L, N, and NM series helicopters equipped with main rotor horn eyebolt P/N S6112-23072-101 or eyebolt assembly P/N S6112-23072-041.
AI-generated summary from the source AD text. Verify against the official source before acting.
Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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