AD 61-06-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-200 | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-300 Series | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-300B Series | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-300C Series | BOEING Models 707- 100 and 707-200 Aircraft |
| aircraft | The Boeing Company | 707-400 Series | BOEING Models 707- 100 and 707-200 Aircraft |
Unsafe Condition
Failure of main landing gear oleo outer cylinders in the area of upper torsion link lugs.
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Required Actions
Inspect the outer cylinder surface within three inches of the torsion link lugs using fluorescent dye penetrant every 65 hours' time in service. If cracks are found, rework or replace the cylinder as specified. Install spacer Boeing P/N 69-11430 or equivalent and adjust inspections accordingly. Use ultrasonic inspection as an alternative method if approved.
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Compliance Time
Compliance required as indicated.
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Affected Aircraft
All Models 707-100 and 707-200 Aircraft with main landing gear oleo cylinders that have experienced 800 flights, and all 707-300 and 707-400 aircraft with cylinders that have experienced 1,000 flights.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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