AD 88-22-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 737-100 Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200 Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 737-200C Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
| aircraft | The Boeing Company | 737-300 Series | Airworthiness Directives; BOEING Models 727 and 737 Series Airplanes |
Unsafe Condition
Improper configuration during takeoff with the takeoff warning system inoperative.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Perform an operational and functional check of the takeoff configuration warning system every 200 flight hours per the FAA-approved maintenance manual. Repair or replace inoperative components before further flight.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Prior to the accumulation of 200 flight hours after the effective date of this AD and thereafter at intervals not to exceed 200 flight hours.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Models 727 and 737 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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