AD 2000-02-18
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | 737-100 | Airworthiness Directives; Boeing Model 737-100, -200, -300, -400, and -500 Series Airplanes |
Unsafe Condition
Contamination of hydraulic fluid from chrome plating chips in reworked PCU manifold cylinder bores could lead to a reduced rate of movement of the elevator, aileron, or rudder.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect reworked aileron/elevator power control units (PCUs) and rudder PCUs to determine if reworked PCU manifold cylinder bores containing chrome plating are installed. Replace the cylinder bores with those reworked using the oversize method or the steel sleeve method, if necessary.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Before further flight
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Affected Aircraft
Boeing Model 737-100, -200, -300, -400, and -500 series airplanes equipped with certain rudder PCUs.
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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