AD 64-05-01
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Long Body | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-100B Short Body | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-200 | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300 Series | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300B Series | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-300C Series | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 707-400 Series | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 720 Series | BOEING Models 707 and 720 Series Aircraft |
| aircraft | The Boeing Company | 720B Series | BOEING Models 707 and 720 Series Aircraft |
Unsafe Condition
Failure of the wing skin over the fuel vent surge tanks due to lightning strike penetration.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Apply bonded laminate panels of 0.010 clad aluminum sheet and glass cloth scrim over the upper and lower wing surfaces over the fuel vent surge tanks. The modification must be done in accordance with Boeing Service Bulletin No. 1642 or equivalent. For damaged panels, trim loose material before flight, placard to avoid thunderstorms, and repair within 125 hours' time in service.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Not later than 1,000 hours' time in service after February 21, 1964, for aircraft with full span leading edge flaps and 2,000 hours' time in service after February 21, 1964, for aircraft without full span leading edge flaps.
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Models 707 and 720 Series Aircraft with fuel vent surge tanks requiring armor protection as specified.
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
This site is not affiliated with or endorsed by the FAA. Always verify with official sources.