Equipment / Furnishings - Door 5 Ceiling Stowage Boxes - Replacement / Operation Check
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AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Boeing 747-400 and 747-8 series airplanes must replace the specified snubbers and perform operational checks as detailed in Boeing Special Attention Requirements Bulletin 747-25-3726 RB. Compliance must be achieved by January 20, 2023. Any necessary on-condition actions identified during inspections must also be completed promptly.
Summary
The Federal Aviation Administration Airworthiness Directive 2022-25-04 is a final rule addressing certain Boeing 747-400 and 747-8 series airplanes. It mandates replacement and operational checks of door 5 ceiling stowage box snubbers to prevent free-fall incidents that have caused injuries to flight attendants. This directive targets snubbers with part number SP5378 and introduces a replacement snubber, part number SP26172.
What changed
This new airworthiness directive requires replacing specific snubbers on door 5 ceiling stowage boxes and, for some airplanes, relocating snubber attachments. It also mandates operational checks to ensure the stowage boxes do not fall freely more than 2.5 inches. The directive introduces the use of a redesigned snubber that meets damping requirements to prevent injury.
Why it matters
This directive is critical for aviation professionals because it addresses a safety hazard where stowage boxes can open and fall unexpectedly, risking injury to flightcrew and maintenance personnel. Operators and maintenance teams must ensure compliance to maintain aircraft safety and avoid potential incidents. The directive also impacts maintenance planning and parts inventory due to required snubber replacements and inspections.
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