Strange question, but here we go.
A GPU for a start.
An air-start capable of delivering sufficient volume....the APU is fine and generally reliable, but does go u/s at times....no air-start, no go.
Steps...the airstairs are pretty reliable, but see above...also rear pax door access steps.
Does your catering supplier ( assuming catering to be uplifted ) have a suitable vehicle for access to the right hand doors.
Toilet cart and potable water.
A tow bar and a tug capable of towing / pushing back the aircraft.
Re-fueling is easy, but make sure the panel is opened fully and secured or the power is cut-off to the panel...if the fuel cuts off early, press the overide button but monitor the uplift or you can vent the contents.
Other things to be aware of which can come as a surprise if you aren't an engineer / pilot
Stating the bleeding obvious here, but don't go anywhere near the engine intake / exhaust until it's stopped turning....you would be surprised just how stupid / complacent people can be.
The heat efflux from the air-cond packs can get rather warm..to put it mildly
The hyd pumps in the wheel well are very noisy.
For the baggage handlers, make sure the hold doors are fully engaged on the latching hook...they are pretty solid bits of kit and will make a dent on your head if they fall.
Hope this helps.
Last edited by Krystal n chips; 20th Mar 2011 at 05:28.