AD Amdt-39-11264
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc. Model 600N Helicopters |
Unsafe Condition
Fatigue tests indicate a need for shorter service lives for life-limited components related to pitch control, which could lead to failure of collective pitch control tubes, collective stick housings, and collective pitch tube assemblies, causing loss of collective pitch control and subsequent loss of control of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Apply serial numbers to specified life-limited components. Remove and replace these components according to new life-limits.
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Compliance Time
Before further flight
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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