EASA AD US-2019-22-10
SUPERSEDED BY FAA AD 2021-09-06
Summary
FAA Airworthiness Directive 2019-22-10 is a final rule affecting all Boeing 737-600, -700, -700C, -800, -900, and -900ER series airplanes. It mandates expanded repetitive inspections for cracking in the left- and right-hand side outboard chords of frame fittings and failsafe straps at station 663.75, around eight fasteners adjacent to stringer S-18A straps. This directive addresses structural integrity concerns to prevent potential loss of airplane control.
What Changed
This directive supersedes AD 2019-20-02 by expanding the inspection area from around two fasteners to around eight fasteners on both sides of the frame fittings. It requires repetitive inspections and repairs if cracking is found, and mandates reporting inspection results to Boeing. The initial inspections under this AD terminate the inspections required by the previous AD.
Why It Matters
The expanded inspection area improves detection of fatigue cracking that could compromise principal structural elements, ensuring continued airworthiness and safety. Operators and maintenance teams must address this to prevent structural failure that could lead to loss of control. Compliance with this AD supports regulatory adherence and fleet safety management.
What To Do
Operators of affected Boeing 737 models must perform the required repetitive detailed inspections around eight fasteners at station 663.75 as specified in the Boeing Multi-Operator Message MOM-MOM-19-0623-01B. Any cracking found must be repaired using FAA- or Boeing-approved methods. Inspection results must be reported to Boeing, and the AD is effective November 13, 2019, with comments accepted until December 30, 2019.
Your fleet's weekly compliance brief
AI-summarized regulatory changes, compliance deadlines, and action items — filtered to your aircraft, every Monday.
AI-generated summary from official EASA source document. Always verify against the original.