Originally Posted by
sailingfun
It also normally involves checks of any standby generators. I don’t know what the ETOPS 737’s have but on a A330 or 767 it’s a HMU type unit. It requires the a hydraulic system to be pressurized and generally takes 10 minutes to complete. Servicing APU oil also takes time getting a stand ect.. Unless you were to put a team of mechanics on the aircraft it all takes time.
737 wasn’t designed for ETOPS. No standby generators, no HMU, no RAT, only a single crossfeed valve. I’ve heard that Alaska runs the APU all the way to Hawaii just in case they need its generator.
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