AD 2000-13-06
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Sikorsky | S-61 | Airworthiness Directives; Sikorsky Model S-61 Helicopters |
Unsafe Condition
Structural failure of certain web fittings due to stress corrosion, subsequent structural failure of the tailboom, and loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect pylon upper and lower hinge web fittings (P/N S6120-76261-012, -013 (upper) or S6120-76262-012, -013 (lower)) for corrosion or cracks within 25 hours time-in-service (TIS). Determine alloy-temper of web fittings, prepare for inspection, and inspect according to Sikorsky Aircraft Corporation Alert Service Bulletin No. 61B20-33, paragraphs 3.A, 3.B, 3.C, and 3.D. Repair or replace unairworthy web fittings.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 25 hours time-in-service (TIS)
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Sikorsky Model S-61 helicopters with pylon, part number (P/N) S6120-76265-001 or S6120-76266-507, installed, certificated in any category.
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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