AD 72-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Learjet Inc. | 23 | Airworthiness Directives; GATES LEARJET Model 23 Airplanes |
Unsafe Condition
Loss of flaps due to failure of the flap actuator rod end.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Replace the flap actuator rod end with a new part in accordance with Gates Learjet Service Bulletin 23-231 or an equivalent part approved by the FAA.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within specified time frames based on airplane hours' time in service: 25 hours after effective date for airplanes with 4,000+ hours, 150 hours after effective date or before 4,025 total hours for 3,851-3,999 hours, and within 150 hours after effective date for 2,350-3,850 hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Gates Learjet Model 23 airplanes, Serial Numbers 23-003 thru 23-089, except those modified with Model 24 Flap System.
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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