Questions concerning engine maintenance
Hi,
This is my first post. I have some questions related to the maintenance after certain abnormal flight conditions:
1-What's the maintenance procedure regarding the engine oil system, after in flight engine shutdown and extended windmill [mainly for quadjet, trijet or ETOPS (twin)]?
-What's the maintenance procedure regarding lubrication system after oil loss?
-Are engines limited (in time) for the windmill because of the low oil pressure?
-Is oil viscosity a problem for engine lubrication after extended windmill (oil may get cold soaked after this long period of windmill)?
-What's the maintenance procedure regarding the oil system during in flight engine fire.
2-What's the maintenance procedure regarding the fuel system after extended windmill (engine shutdown, not engine fire)? since the fuel is shutoff, and the fuel fuel pump and the fuel metering valve (FCU, MEC, HMU) are not lubricated by fuel during extended windmill (at the opposite the maintenance manual recommends to lubricate these 2 components during short time of the ground dry motoring by opening the fuel spar valve, fuel boost pump ON, etc...)
-Are the engines limited (in time) because of the fuel is shutoff after extended windmill? since the the fuel pump and the the fuel metering valve are not lubricated.
Thank you for your answers.
Best regards.