AD 88-25-03
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-300 Series | Airworthiness Directives; BOEING Model 707-300, -300B, -300C and -400 Series Airplanes |
| aircraft | The Boeing Company | 707-300B Series | Airworthiness Directives; BOEING Model 707-300, -300B, -300C and -400 Series Airplanes |
| aircraft | The Boeing Company | 707-300C Series | Airworthiness Directives; BOEING Model 707-300, -300B, -300C and -400 Series Airplanes |
| aircraft | The Boeing Company | 707-400 Series | Airworthiness Directives; BOEING Model 707-300, -300B, -300C and -400 Series Airplanes |
Unsafe Condition
Separation of the horizontal stabilizer.
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Required Actions
Install structural improvement kits on the horizontal stabilizer outer panels and center section per specified service bulletins. Rework the clevis fittings per specified service bulletins if previously modified with earlier revisions. Compliance constitutes termination of this AD and prior ADs 77-16-11 and 78-01-04.
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Compliance Time
Prior to the accumulation of 8,000 total landings or within one year after the effective date of this AD, depending on modification status.
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Affected Aircraft
Boeing Model 707-300, -300B, -300C, and -400 series airplanes certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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