AD 2001-24-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc. Model 600N Helicopters |
Unsafe Condition
Cracked bolt on the upper tailboom attachment, which could lead to tailboom failure and loss of control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect both upper tailboom attachments, nutplates, and angles for cracks or thread damage; repair or replace any damaged parts. Replace the upper right-hand tailboom attachment bolt with a new one; if the upper RH bolt is broken, replace all remaining bolts with airworthy ones. Add a washer to each bolt and modify both upper access covers. Inspect upper tailboom attachments at specified intervals and repair or replace cracked parts before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 5 hours time-in-service (TIS)
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MD Helicopters, Inc. Model 600N helicopters
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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