AD 91-07-51
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 757-200 Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200CB Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-200PF Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
| aircraft | The Boeing Company | 757-300 Series | Airworthiness Directives; BOEING Model 757 Series Airplanes |
Unsafe Condition
Improperly installed nuts in the upper and lower attachment of the rudder yaw damper pogo assembly may result in nut or bolt failure, leading to loss of yaw damper function.
AI-generated summary from the source AD text. Verify against the official source before acting.
Required Actions
Inspect upper and lower attachment of the rudder yaw damper pogo assembly for improper nut installation per Boeing Telegram M-7272-91-1886. Replace both nut and bolt prior to further flight if less than one thread protrudes or if cross threading is present. Submit findings report within 10 days of inspection completion.
AI-generated summary from the source AD text. Verify against the official source before acting.
Compliance Time
Within the next 60 flight cycles or 20 days after the effective date of this AD, whichever occurs sooner
AI-generated summary from the source AD text. Verify against the official source before acting.
Affected Aircraft
Boeing Model 757 series airplanes, line number 154 through 350, except line numbers 332 and 340, certificated in any category.
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.