AD 69-12-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-300 Series | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 720 Series | BOEING 707/720 and 727 Series Airplanes |
| aircraft | The Boeing Company | 720B Series | BOEING 707/720 and 727 Series Airplanes |
Unsafe Condition
The takeoff warning system may not arm at the correct thrust lever position, and flight crews may not be adequately informed of system characteristics, potentially leading to undetected unsafe conditions during takeoff such as incorrect stabilizer trim, flap settings, or speed brake position.
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Required Actions
Modify the takeoff warning actuating switch installation per Boeing Service Bulletins 2384 (707/720 series) and 27-102 (727 series) or equivalent, and revise the Airplane Flight Manual's warning horn section as specified for different model configurations.
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Compliance Time
within 1000 hours time in service after the effective date of this AD
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Affected Aircraft
Boeing 707/720 and 727 series airplanes listed in Boeing Service Bulletins 2384 and 27-102, including specific models like 707-100, -200, -300 series, 727, and variants as detailed in the AD.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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