Summary
We propose to supersede Airworthiness Directive (AD) 2010-10- 13, for all BAE SYSTEMS (Operations) Limited Model BAe 146 and Avro 146 series airplanes. AD 2010-10-13 currently requires repetitive inspections of the wing fixed leading edge and front spar structure for corrosion and cracking, and repair if necessary. Since we issued AD 2010-10-13, the Design Approval Holder (DAH) has issued revised inspection procedures that eliminate a previously approved inspection procedure. This proposed AD would require revised inspection procedures. We are proposing this AD to detect and correct corrosion and cracking of the wing fixed leading edge and front spar structure, which could result in reduced structural integrity of the wing.