AD 74-10-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707-100, -100B and -200 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707-100, -100B and -200 Series Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707-100, -100B and -200 Series Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707-100, -100B and -200 Series Airplanes |
Unsafe Condition
Cracks in the upper wing splice plate and upper rib cap at wing station 360.
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Required Actions
X-Ray or low frequency eddy current inspect the upper wing surface splice plate and rib cap at wing station 360 within specified flight limits. Repair cracks prior to further flight or install external doubler as per Boeing Service Bulletin.
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Compliance Time
Within the next 25 flights after the effective date for airplanes with more than 24,000 flights, or within the next 50 flights after the effective date for airplanes with more than 17,000 flights.
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Affected Aircraft
Boeing Model 707-100 series, -100B series, and -200 series airplanes certificated in all categories.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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