AD 91-09-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; BOEING Model 727 Series Airplanes |
Unsafe Condition
Separation of an inboard trailing edge flap due to cracking in the exposed areas of the inboard trailing edge flap inboard track at the main landing gear door forward hinge fitting attachment holes.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform a detailed visual inspection for cracks in the exposed areas of the inboard trailing edge flap inboard track. Repeat inspections at intervals not exceeding 3,000 flight cycles. Repair or replace cracked tracks as specified, and replace tracks repaired with Boeing Drawing 65-68420 within specified intervals.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 7,000 flight cycles since manufacture or within the next 1,000 flight cycles after the effective date of this AD, whichever occurs later. For modified tracks, within 9,000 flight cycles since modification or 1,000 flight cycles after the AD's effective date, whichever is later. For tracks repaired via Boeing Drawing 65-68420, within 2,000 flight cycles or 1 year since repair, or 1,000 flight cycles/6 months after the AD's effective date, whichever comes first.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
All Model 727 series airplanes, certificated in any category.
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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