Originally Posted by
jsled
If it were, then you couldn't fly the guppies to HI.
True statement, however it is aircraft specific. As dumb as this sounds, the 737 can use the APU in ETOPS airspace and fly 180 minute ETOPS while a 757 without the HMG cannot substitute the APU. I would much rather continue flying 757's to Hawaii no matter what age than switch to the 737 but that is not the company's plan....