AD 2010-14-07
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company Model 747 | Airworthiness Directives; The Boeing Company Model 747 Airplanes |
Unsafe Condition
Fatigue cracking of the body station (BS) 2598 bulkhead structure, which could result in inability of the structure to carry horizontal stabilizer flight loads, and loss of controllability of the airplane.
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Required Actions
Repetitive inspections of the BS 2598 bulkhead, corrective actions if necessary, and a terminating modification for repetitive inspections. Post-modification inspections of the modified area are also required. For certain airplanes, new repetitive inspections, an interim modification, and post-interim modification inspections are mandated. Previously repaired aft inner chords must be replaced and the terminating modification reinstalled. Inspections of the upper aft outer chords and diagonal brace attachment fittings, flanges, and rods continue after the terminating modification.
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Compliance Time
Within specified compliance time as outlined in the service information.
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Affected Aircraft
The Boeing Company Model 747 airplanes, including those converted to the Model 747-400 large cargo freighter (LCF) configuration.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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