Airbus Drivers: Single-Engine Taxi 'n APUs

PeanuckleCRJ said:
That's great conjecture. The data proves otherwise with highly detailed FOQA analysis. Proper engine warm up is required to be respected, but I'm sure you knew that.
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Are you guys paying power by the hour for those engines or do you own them?
 
The little buses take about a knob-width of power for crossbleed starts, that's almost too much at times because if you're not careful, you're pushing 40 PSI if you're not careful.

If I remember correctly, the 767 (GE and PW) took about half a knob-width.

It's not THAT much of a problem to crossbleed. Good FO's wait until I'm adding breakaway thrust or a point where I have the throttle "at more than idle" to start the critical.
 
Do you guys at Southernjets have a checklist or QRH page when you normally do the X-bleed start or is it a flow that everyone on the fleet should know? At BlueJuice factory it's single-engine taxi with APU on. If we have to X-bleed start it's a page or two in our QRH that the FOs read and do.
 
Our manual doesn't require the APU for second engine start. But if you have only the one engine turning and the gen fails, NWS is lost.
 
Autothrust Blue said:
Just to make @jtrain609 irritated, we crossbleed start on the roll and from memory at my shop.
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The only problem with doing it on the roll is if the captain forgets they're starting an engine and pulls the power back to stop and then causes a hot start.

It wouldn't even be the stupidest thing I've done in an airplane, just probably the most costly from a monetary standpoint.
 
Regarding crossbleed starts on the roll, the procedure on my fleet is to set the parking brake.

It can either be accomplished from memory, reviewing beforehand, or simply reading the procedure.
 
scooter2525 said:
Our manual doesn't require the APU for second engine start. But if you have only the one engine turning and the gen fails, NWS is lost.
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Meh. I can count with one finger how many GEN failures I've had in 8 years of 121 flying.

Plus, you're on the ground. And your brakes still work.
 
Soul Brotha' said:
Do you guys at Southernjets have a checklist or QRH page when you normally do the X-bleed start or is it a flow that everyone on the fleet should know? At BlueJuice factory it's single-engine taxi with APU on. If we have to X-bleed start it's a page or two in our QRH that the FOs read and do.
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There a procedure for it in one of the manuals, but it doesn't require a checklist to conduct a crossbleed.
 
jtrain609 said:
The only problem with doing it on the roll is if the captain forgets they're starting an engine and pulls the power back to stop and then causes a hot start.

It wouldn't even be the stupidest thing I've done in an airplane, just probably the most costly from a monetary standpoint.
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I guard the advanced thrust lever until the IGN A (B) annunciation goes away, but not everyone does.
 
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