Superseded. This AD was superseded by AD 2024-25-01. Verify which one applies to your serial and effectivity before any maintenance action.
AD 2023-23-09
Effective 01/11/2024 · Published 12/27/2023
Airworthiness Directives; Embraer S.A. (Type Certificate Previously Held by Yaborã Indústria Aeronáutica S.A.; Embraer S.A.) Airplanes
Summary
The FAA is adopting a new airworthiness directive (AD) for all Embraer S.A. Model ERJ 190-400 airplanes. This AD was prompted by a report of unexpected wear on the wing hinge bearing assembly of the aileron surfaces found during the functional test of the aileron control system backlash. This AD requires repetitive inspections of the press-fitted bushings of the wing ailerons for migration and broken sealant, measur…