Airworthiness Directive · Amendment 39-13244 · Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 Series Airplanes
Empresa Brasileira de Aeronautica S.A. (EMBRAER) Model EMB-135 and -145 Series Airplanes
All Model EMB-135 and EMB-145 series airplanes, certificated in any category.
This amendment supersedes an existing airworthiness directive (AD), applicable to all EMBRAER Model EMB-145 series airplanes, that currently requires repetitive replacement of the bleed-air check valve and associated gaskets on the bleed low-pressure lines of the engines with new parts. This amendment continues to require repetitive replacement of the bleed-air check valves and associated gaskets. Additionally, this amendment provides for optional terminating action for the repetitive replacement of bleed-air check valves by installing new improved check valves, and adds airplanes to the applicability of the existing AD. This amendment also clarifies that the replacement and follow-on actions are required for the left- and right-hand engines. The actions specified by this AD are intended to prevent failure of the bleed-air check valves on the bleed low-pressure lines of the engines, which could result in engine compressor stall and consequent flameout of the affected engines. This action is intended to address the identified unsafe condition.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Aircraft
