AD NUMBER: 2007-04-04
MANUFACTURER: BAE Systems
SUBJECT: Airworthiness Directive 2007-04-04 SUMMARY: The FAA is adopting a new airworthiness
directive (AD) for certain BAE Systems (Operations) Limited Model
BAe 146 and Avro 146-RJ airplanes.
This AD requires repetitive inspections of the wing top skin
under the rib 0 joint strap, and related investigative and
corrective actions if necessary.
This AD results from a report of a significant crack in the wing
top skin under the rib 0 joint strap.
We are issuing this AD to detect and correct corrosion and
cracking in that area, which could result in reduced structural
integrity of the wing.