Airworthiness Directive · Amendment 39-23462 · Fuselage
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025.
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-8, 737-9, and 737-8200 airplanes. This AD was prompted by reports indicating cracks in the bear strap and stub frame at the forward galley door cutout. This AD requires inspections for existing repairs; an inspection for any crack of the fuselage skin, bear strap, and stub frame; repetitive inspections for any crack of the bear strap and stub frame; and applicable on-condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified in paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 737-53A1420, dated February 13, 2025, which is referred to in Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025.
(1) Where the Compliance Time columns of the tables in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025, refer to the original issue date of Requirements Bulletin 737-53A1420 RB, this AD requires using the effective date of this AD.
(2) Where Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025, specifies contacting Boeing for repair instructions or for alternative inspections: This AD requires doing the repair, or doing the alternative inspections and applicable on-condition actions using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
(3) Where flag note (a) of Figure 6 of the Accomplishment Instructions of Boeing Alert Requirements Bulletin 737-53A1420 RB, dated February 13, 2025, specifies “Use the probe to scan internal surface of the bear strap at the specified area”, this AD requires replacing that text with “Use the probe to scan the internal surface of the stub frame at the specified area”.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
