AD 65-04-02
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
Failures of B-nuts on the high pressure air start system lines have occurred, resulting in whipping lines in the wheel well area.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Within 500 hours' time in service from the effective date, replace NAS 596-16 B-nuts with AN 818-16 nuts and MS 20819-16 sleeves, relocate air pressure regulator Boeing P/N 10-3358-1 and deactivate the external connection, or deactivate the system by removing bottles and lines. Use equivalent approved methods if applicable.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within 500 hours' time in service from the effective date of this AD
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Models 707 and 720 Series Aircraft Equipped With an External High Pressure Air Start Connection.
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.