AD 97-02-09
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | The Boeing Company | 727-100 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-100C Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727-200F Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727 Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
| aircraft | The Boeing Company | 727C Series | Airworthiness Directives; Boeing Model 727 Series Airplanes |
Unsafe Condition
Cracking in the actuator rib fitting of the inboard door of the main landing gear (MLG), which could lead to failure of the landing gear to extend due to a fractured rib fitting.
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Required Actions
Inspect the actuator rib fitting of the MLG inboard door in an expanded area to detect cracking. Rework or replace any cracked fittings. Perform follow-on actions including inspections at specified intervals or installation of steel fittings as a terminating action.
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Compliance Time
Effective March 4, 1997.
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Affected Aircraft
Boeing Model 727-100 Series, 727-100C Series, 727-200 Series, 727-200F Series, 727 Series, 727C Series airplanes, certificated in any category.
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Source: Official FAA Source ↗
Retrieved: Apr 8, 2026
Rights: U.S. Government Public Domain
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