只有一次维修记录，原因是燃料的辅助动力装置罩泄漏。
Only one deferred maintenance item was noted in the maintenance logs. This was for fuel leaking from the auxiliary power unit cowling.
本发明的辅助动力装置安装在发动机前端，其加热水管与发动机排气室相通。
The auxiliary power device is arranged on the front end of the engine, and the heating water pipes of the auxiliary power device are communicated with an exhaust chamber.
引气活门，气源系统内，使来自发动机或辅助动力装置的空气进人气源支管的活门。
BLEED valve, a valve in the pneumatic system for air supply from the engine or auxiliary power unit to the pneumatic manifold.
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