No time to waste, climb aboard, into the cockpit and begin powering up the Embraer E170. (Part computer part plane, Embraer's term E-jet is true)
Batteries 1 and 2 selected to on, and then wait approximately 1 minute, whilst the aircraft boots up (yes, just like windows - modern day aircraft!!). Messages start displaying on the EICAS, great, time to start the APU. Its the First Officers Sector, so time to run outside do the walk around, remove the pins from the undercarriage, and set the fuel bugs, to begin refueling.
Meanwhile, back in the cockpit a spurious caution message appears on the EICAS "TRU 1 Fail" mmm never seen that one before, calls for the QRH. Turn off associated TRU, wait one minute, then cycle back to on. After three resets, its time to call for the engineers. So the TRU 1 switch position is set to off.
Now is probably a good time as any, to highlight the point that the Embraer E-Jet is very much an electrical aircraft. It has many electrical systems and backups in place, and all switchings in the event of failure are automated. It relies on DC and AC power, and has 3 TRU's (Transformer Rectifier Units - AC to DC) Everything is computer controlled, even the light dimmer switches pass through the computer before it affects the light. If you move the switch fast enough, you can see the lag.
15 minutes later the engineer arrives at the aircraft. Inquires as to the nature of the problem in his best asian to english translations, and promptly informs the captain, the reason why the TRU 1 has failed, is because it has been selected to the off position. No matter how many words and gestation's are passed to indicate the fact that it had been deliberately selected to that position for a reason, the Tech Log is signed off, and airship is good to go.
20 minutes later, passengers have boarded and aircraft is taxiing on its way to the departure runway.
All the pre-takeoff checks complete, cleared to line up behind the Cathay 747 line up behind.
A nice uneventful take off and departure, as soon as we pass 12000 feet, we pop out of the thick grey smog blanket, into a nice sunny blue day.
Yep, shall be calling for that nice warm coffee in no time.