AD 64-03-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-200 | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300 Series | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300B Series | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300C Series | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-400 Series | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 720 Series | BOEING 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 720B Series | BOEING 707 and 720 Series Aircraft |
Unsafe Condition
Cracking in the wing structure external to the wing fuel tanks, specifically in the vertical leg of the upper rear spar chord near wing Station 208 on 707-300/400 Series and longitudinal cracking in the vertical leg adjacent to the fillet between vertical and horizontal legs of the upper and lower front spar chord near Wing Station 727 outboard to the production splice station on all 707/720 Series aircraft.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Visually inspect the wing spar chords for cracking as specified in the locations and models, repair any cracked chord members before further flight using approved technical data.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
At the next terminal where adequate facilities and personnel are available but not to exceed 25 hours' time in service after the effective date of this AD, unless already accomplished.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing 707 and 720 Series aircraft, including models 707-100 Long Body, 707-100B Long Body, 707-100B Short Body, 707-200, 707-300 Series, 707-300B Series, and 707-400 Series.
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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