AD Amdt-39-9953
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737 | Airworthiness Directives; Boeing Model 737 Series Airplanes |
Unsafe Condition
Failure of the flow restrictors in the aileron and elevator power control units (PCUs) could result in uncommanded control surface movement.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the flow restrictors of the aileron and elevator power control units (PCUs) with new flow restrictors.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 737 series airplanes with certain power control units (PCUs) affected by the typographical error in AD 97-05-09.
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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