Re: Engine start sequence

Date:         10 Jul 99 02:33:26 
From:         Michael P Nixon <>
References:   1 2 3
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On 25 Jun 99 01:33:04  Mike Hall <> writes:
>PSLEIGHT wrote:
>> Andrew van der Plas wrote in message ...
>> >Why do aircraft usualy start first engine 2 and then engine 1, on a
>> >two-engined airplane.
>To diverge slighltly, why can't a 737 start *at all* without external
>help? I recently got delayed on a Chicago-Memphis leg (North West)
>because the pilot claimed he couldn't start wihout a SNAFU EPU? Can't
>these planes start on their APUs/whatever alone?

They normally do start them solely with an on-board APU, however,
occasionally a problem will arise of which the pilots aren't aware until
start-time. THEN they discover that they need a GPU.

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