AD NUMBER: 2003-03-10
MANUFACTURER: British Aero SUBJECT: Airworthiness Directive
SUMMARY: This amendment adopts a new airworthiness directive
(AD), applicable to all BAE Systems (Operations) Limited Model
BAe 146 and Avro 146-RJ series airplanes, that
requires replacement of the existing "Low Temp" terminal blocks "G"
with new, fireproof ceramic terminal blocks "G" in engine zones
412, 422, 432, and 442. This action is necessary to prevent failure
of the engine fire detection and suppression systems to operate
properly in the event of a fire due to failure of non-fireproof
terminal blocks, which could result in an undetected and
uncontrollable fire in an engine.This action is intended to address
the identified unsafe condition.