Airworthiness Directive · Amendment 39-8829 · Bombardier Inc. Airplanes
Bombardier Inc. Airplanes
Superseded. A later AD replaced this one: AD 2003-25-05. Comply with the one in force.
This AD applies to Bombardier Inc. DHC-8-100 Series, DHC-8-300 Series.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This amendment adopts a new airworthiness directive (AD), applicable to certain de Havilland Model DHC-8-100 and DHC-8-300 series airplanes, that requires inspections to detect breakage in the engine rear mount strut assemblies, and replacement of broken struts. This amendment also requires eventual replacement of all currently installed struts with new and/or reworked struts, as terminating action for the inspections. This amendment is prompted by several reports of failure of the engine rear mount struts, due to fracture at one of the rosette welds on the shank of the strut where full weld depth was not achieved during manufacture. The actions specified by this AD are intended to prevent fracture of the engine rear mount struts, which could reduce the structural integrity of the nacelle and engine support structure.
