AD 2003-06-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Learjet | 45 | Airworthiness Directives; Learjet Model 45 Airplanes |
Unsafe Condition
Severe vibration followed by a rapid nose down pitch change, potentially leading to structural failure of the horizontal stabilizer actuator assembly (A66).
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the part number of the horizontal stabilizer actuator assembly (A66). Replace any suspect actuator assembly (A66) with a new or serviceable one.
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
Learjet Model 45 airplanes.
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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