Airworthiness Directive · Amendment 39-19675 · Fuselage
The Boeing Company Airplanes
(1) This AD applies to The Boeing Company Model 737-200, -200C, -300, -400, and -500 airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 737-53A1379 RB, dated September 4, 2018.
(2) Installation of Supplemental Type Certificate (STC) ST01219SE does not affect the ability to accomplish the actions required by this AD. Therefore, for airplanes on which STC ST01219SE is installed, a “change in product” alternative method of compliance (AMOC) approval request is not necessary to comply with the requirements of 14 CFR 39.17.
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-200, -200C, -300, -400, and -500 airplanes. This AD was prompted by reports of cracking in the lower lobe skin panel assemblies of the fuselage and an evaluation by the design approval holder (DAH) indicating that these assemblies are subject to widespread fatigue damage (WFD). This AD requires replacement of lower lobe skin panel assemblies, detailed inspections for scribe lines, and applicable on- condition actions. The FAA is issuing this AD to address the unsafe condition on these products.
Except as specified by paragraph (h) of this AD: At the applicable times specified in the “Compliance” paragraph of Boeing Alert Requirements Bulletin 737-53A1379 RB, dated September 4, 2018, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 737-53A1379 RB, dated September 4, 2018.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 737-53A1379, dated September 4, 2018, which is referred to in Boeing Alert Requirements Bulletin 737-53A1379 RB, dated September 4, 2018.
(1) For purposes of determining compliance with the requirements of this AD: Where Boeing Alert Requirements Bulletin 737-53A1379 RB, dated September 4, 2018, uses the phrase “the original issue date of Requirements Bulletin 737-53A1379 RB,” this AD requires using “the effective date of this AD.”
(2) Where Boeing Alert Requirements Bulletin 737-53A1379 RB, dated September 4, 2018, specifies contacting Boeing for work instructions or for scribe line repair and skin panel replacement instructions: This AD requires doing the work and the scribe line repair and skin panel replacement before further flight using a method approved in accordance with the procedures specified in paragraph (i) of this AD.
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.
Aircraft
