AD 73-14-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-200 | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-300 Series | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-300B Series | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-300C Series | BOEING Model 707 Airplanes |
| aircraft | The Boeing Company | 707-400 Series | BOEING Model 707 Airplanes |
Unsafe Condition
Cracks emanating from the barrel nut hole on main deck cargo door latch support fittings made of non-shot peened 7079-T6 material.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect the main deck cargo door latch support fittings using visual, dye penetrant, or eddy current methods per Boeing Alert Service Bulletin 3124 or approved method. Replace cracked fittings with shot-peened 7079-T6 or 7075-T73 fittings, or repair with FAA approval. Adjust inspection intervals with FAA approval if substantiating data is provided.
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Compliance Time
Within the next 1500 hours' time in service after the effective date and at intervals not to exceed 1500 hours' time in service. Re-inspections required at intervals not to exceed 200 hours' time in service if cracks are found.
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Affected Aircraft
Boeing Model 707 airplanes manufactured prior to December 1, 1967, with non-shot peened 7079-T6 main deck cargo door latch support fittings.
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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