AD 59-21-04
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 707-100 Long Body | BOEING 707-100 Series Long Body Airplanes |
Unsafe Condition
The rudder effectiveness deteriorates rapidly when yaw angles exceed approximately ten degrees, resulting in loss of aircraft directional control.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Deactivate the rudder feel spring installation and revise the Airplane Flight Manual's emergency operating instructions to include precautionary notes on maintaining directional control during engine-out operations.
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
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Affected Aircraft
The Boeing Company 707-100 Series Long Body Airplanes
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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