AD 2004-22-12
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | MD | Various | Airworthiness Directives; MD Helicopters, Inc. Model 600N Helicopters |
Unsafe Condition
Fatigue life of the fuselage Station 75 control support bracket assembly is shorter than originally analyzed, potentially leading to failure 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
Replace the control support bracket assembly, part number 369N2608-11, with an airworthy assembly, part number 600N2608-1, by the specified time limits. Revise the Limitations section of the maintenance manual to reflect the reduced life limits.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
No later than November 30, 2005, or by the time the helicopter reaches the hours time-in-service (TIS) listed in the chart, whichever occurs first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
MD Helicopters, Inc. Model 600N helicopters with serial numbers prefixed by 'RN' and specific numbers listed, or any Model 600N helicopter with a yaw stability augmentation system (YSAS) installed and control support bracket assembly part number 369N2608-11 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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