EASA AD US-2019-13-02
Fuselage - Lower Lobe Skin Panel Assemblies - Replacement / Inspection
Summary
FAA Airworthiness Directive 2019-13-02 is a final rule addressing certain Boeing 737-200, -200C, -300, -400, and -500 airplanes. It mandates replacement and detailed inspections of the fuselage lower lobe skin panel assemblies due to reports of cracking and findings of widespread fatigue damage. This directive aims to maintain structural integrity and prevent decompression risks.
What Changed
This new airworthiness directive introduces mandatory replacement of the lower lobe skin panel assemblies and detailed inspections for scribe lines on affected Boeing 737 models. It also includes applicable on-condition actions to address detected issues. The directive clarifies that installation of Supplemental Type Certificate STC ST01219SE does not affect compliance requirements.
Why It Matters
This directive is critical for aviation professionals because it addresses a significant safety risk involving potential fuselage skin cracking that could compromise aircraft structural integrity. Operators and maintenance teams must ensure compliance to prevent possible decompression events and maintain airworthiness. The directive also provides clear guidance on inspections and replacements, facilitating effective maintenance planning.
What To Do
Operators of affected Boeing 737-200, -200C, -300, -400, and -500 airplanes must perform the required replacement and detailed inspections of the lower lobe skin panel assemblies as specified in Boeing Alert Requirements Bulletin 737-53A1379 RB dated September 4, 2018. Compliance must be achieved by August 23, 2019, the effective date of the AD. Any detected issues must be addressed with the applicable on-condition actions.
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