Fuselage - Aft Pressure Bulkhead Gore Webs, Lap Splices and Repair Webs - Inspection
- Published
- Effective
- Deadline
AI-generated summary of the official EASA document. Verify against the PDF before acting.
What to do
Operators of affected Boeing 737 models must perform repetitive inspections of the aft pressure bulkhead gore webs, lap splices, and repair webs as specified in Boeing Alert Service Bulletin 737-53A1355. Any detected damage must be addressed with on-condition actions. Compliance with this directive is required by April 3, 2018, the effective date of the AD.
Summary
Federal Register Volume 83, Number 39 (2018) Final Rule Airworthiness Directive addresses all Boeing 737-100, -200, -200C, -300, -400, and -500 series airplanes. It mandates repetitive inspections of the aft pressure bulkhead gore webs, lap splices, and repair webs to detect widespread fatigue damage. The directive aims to prevent potential rapid decompression and loss of structural integrity.
What changed
This new airworthiness directive introduces mandatory repetitive inspections of the aft pressure bulkhead gore webs and lap splices, along with applicable on-condition corrective actions. It clarifies that installation of Supplemental Type Certificate ST01219SE does not affect compliance. The directive also provides termination instructions for previous AD 2012-18-13 R1 requirements.
Why it matters
This directive is critical for aviation professionals to ensure the structural integrity of aging Boeing 737 models by detecting fatigue damage early. Operators and maintenance teams must comply to prevent unsafe conditions that could lead to rapid decompression. Compliance ensures continued airworthiness and regulatory adherence, reducing risk and potential operational disruptions.
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