AD 2024-10-05
Applicability
| Type | Manufacturer | Model | Details |
|---|---|---|---|
| aircraft | Boeing | Company | Airworthiness Directives; The Boeing Company Airplanes |
Unsafe Condition
Damage to the blowout vent grilles throughout the lower lobe cargo compartment could lead to latent failure of the decompression panels and pressure equalization valves, which could make the cargo fire protection, detection, suppression, and containment system ineffective. Additionally, this latent failure, in combination with rapid decompression of the airplane, could prevent activation of the station (STA) 1640 decompression panels, which could damage the STA 1640 floor beam and cause loss of hydraulic systems components and flight control and damage to the auxiliary power unit (APU) fuel line.
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Required Actions
This AD requires repetitive detailed inspections of certain decompression panels and pressure equalization valves, as applicable, in the forward and aft lower lobe cargo compartments for damage, and applicable on-condition actions. For certain airplanes, this AD also requires installation of decompression panels with billet grilles. For other certain airplanes, this AD also requires replacement of a certain soft bulkhead with a rigid bulkhead. For certain other airplanes, this AD requires installation of doublers to a certain bulkhead assembly panel.
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Compliance Time
This AD is effective July 19, 2024.
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Affected Aircraft
The Boeing Company Model 757 airplanes.
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Source: Official FAA Source ↗
Retrieved: Apr 6, 2026
Rights: U.S. Government Public Domain
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