Superseded. This AD was superseded by AD 2021-22-04. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2019-21-10
Effective 12/24/2019 · Published 11/19/2019
Airworthiness Directives; Airbus SAS Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for all Airbus SAS Model A321-111, -112, -131, -211, -212, -213, -231, and -232 airplanes. This AD was prompted by a quality control review, which determined that the wrong aluminum alloy was used to manufacture several structural parts. This AD requires a one-time eddy current conductivity measurement of certain structural parts of the outer flaps to determine…