Airworthiness directives › 2024-10-05
AD 2024-10-05 Airworthiness Directives; The Boeing Company Airplanes
Models named: 757-200, -200PF, -200CB, -300 series. Read the applicability below — it usually turns on serial or part numbers too.
Applicability*9
This AD applies to The Boeing Company Model 757-200, -200PF, -200CB, and -300 series airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 757-25A0319 RB, dated March 24, 2023.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 757-25A0319 RB, dated March 24, 2023, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 757-25A0319 RB, dated March 24, 2023. Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 757-25A0319, dated March 24, 2023, which is referred to in Boeing Alert Requirements Bulletin 757-25A0319 RB, dated March 24, 2023.
Unsafe condition
This AD was prompted by reports that operators have found, on multiple aircraft, frequent and severe damage to the blowout vent grilles throughout the lower lobe cargo compartment. The FAA is issuing this AD to address damage to the blowout vent grilles in the forward and aft lower lobe cargo compartments that could lead to latent failure of the decompression panels and pressure equalization valves. This latent failure, in combination with a fire, could make the cargo fire protection, detection, suppression, and containment system ineffective. Also, 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. This unsafe condition, if not addressed, could result in the inability of the flightcrew to maintain safe flight and landing.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1