Airworthiness Directive · Amendment 39-21737 · Wings
The Boeing Company Airplanes
This AD applies to The Boeing Company Model 737-9 airplanes, certificated in any category, as identified in Boeing Alert Requirements Bulletin 737-57A1350 RB, dated April 23, 2020.
The FAA is adopting a new airworthiness directive (AD) for certain The Boeing Company Model 737-9 airplanes. This AD was prompted by a report of missing sealant on the left and right wing leading edge outboard blowout door. This AD requires doing a fluid seal contact inspection and a detailed inspection for missing sealant on each blowout door and applying sealant if necessary. 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 737-57A1350 RB, dated April 23, 2020, do all applicable actions identified in, and in accordance with, the Accomplishment Instructions of Boeing Alert Requirements Bulletin 737-57A1350 RB, dated April 23, 2020.
Note 1 to paragraph (g): Guidance for accomplishing the actions required by this AD can be found in Boeing Alert Service Bulletin 737-57A1350, dated April 23, 2020, which is referred to in Boeing Alert Requirements Bulletin 737-57A1350 RB, dated April 23, 2020.
Where Boeing Alert Requirements Bulletin 737-57A1350 RB, dated April 23, 2020, refers to “the Original Issue date of Requirements Bulletin 737-57A1350 RB,” this AD requires using “the effective date 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
