AD 90-09-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Schweizer Aircraft Corporation | 269C | Airworthiness Directives; Schweizer Aircraft Corporation (Hughes Helicopter Inc.) Model 269C Series Helicopters |
Unsafe Condition
Improper location of the rod spring attachment clamp (P/N AN735-9) and misalignment of the spring attach angles on the lower longitudinal cyclic control rod assembly (P/N 269A9940-7) could lead to loss of longitudinal cyclic control and subsequent loss of the helicopter.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the lower longitudinal cyclic control rod assembly to verify the clamp position and spring attach angles. Adjust the clamp and angles if necessary to achieve a distance of 7.85 to 7.97 inches between the rod forward jam nut and clamp, and ensure angles are parallel and aligned. Install a new worm type hose clamp (P/N AN737TW22 or AN737TW24) forward of the existing clamp and torque to 40-45 in-lb.
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Compliance Time
Required prior to further flight after the effective date of this AD
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Affected Aircraft
Schweizer Aircraft Corporation (Hughes Helicopter Inc.) Model 269C series helicopters, serial number 0004 through 1456
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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