AD 2011-14-02
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company Model 767 | Airworthiness Directives; The Boeing Company Model 767 Airplanes |
Unsafe Condition
Fatigue cracking in the vertical inner chord and the forward outer chord while doing the detailed inspection of the horizontal inner chord at STA 1809.5, which could result in failure of the bulkhead structure for carrying the flight loads of the horizontal stabilizer, and consequent loss of controllability of the airplane.
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Required Actions
Expand the inspection area to include the vertical inner chord at STA 1809.5. Perform repetitive detailed and high frequency eddy current (HFEC) inspections of the STA 1809.5 bulkhead and the vertical inner chord for cracking. Take corrective actions if necessary.
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Compliance Time
Within 50 flight hours after the effective date of this AD.
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Affected Aircraft
The Boeing Company Model 767 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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