AD 66-29-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | BOEING Model 727 Series Airplanes |
Unsafe Condition
Loss of the cowl panels in flight, resulting in damage to the aircraft structure.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Modify the side engine cowl panel latch assemblies per Boeing Service Bulletin No. 71-14 or later FAA-approved revision within 1,500 hours' time in service after the effective date. Modify the center engine cowl panel latch frames per Boeing Service Bulletin No. 71-27 or later FAA-approved revision within 3,000 hours' time in service after the effective date.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 1,500 hours' time in service after the effective date of this AD (for side engine cowl panels) and within the next 3,000 hours' time in service after the effective date of this AD (for center engine cowl panels).
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 727 Series Airplanes including 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series, 727 Series, and 727C Series.
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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