Narrative:

I acknowledged a reserve trip the evening before and went to bed. I was then woken by a two hour call-out for a different trip that pushed in less than two hours. I arrived at the gate to find the aircraft boarded and the captain completing the walk around. He started the ACARS and FMC duties as I settled in and ran my flows. We [reviewed] the route and briefed the departure and other normal items and pushed back. As I did the after start flow; I noticed the transponder had no code in it. We had no clearance. I had not done it myself and we did brief the route. I called for the clearance; we reviewed it and started the taxi. At that point there was no [set takeoff flaps] call and no prompt for the before taxi checklist. We moved a very short distance when I noticed the mistake and began corrections. We set the brakes at the hold short line; ran the checklists; called for departure; and completed the rest of the flight normally.don't board aircraft without crew members present. It creates pressure on all to perform extra to help out. Unfortunately it leaves gaps in the duties; and items can get skipped.

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Original NASA ASRS Text

Title: B737 flight crew reported procedural errors caused by the late callout of a reserve First Officer .

Narrative: I acknowledged a reserve trip the evening before and went to bed. I was then woken by a two hour call-out for a different trip that pushed in less than two hours. I arrived at the gate to find the aircraft boarded and the Captain completing the walk around. He started the ACARS and FMC duties as I settled in and ran my flows. We [reviewed] the route and briefed the departure and other normal items and pushed back. As I did the After Start Flow; I noticed the transponder had no code in it. We had no clearance. I had not done it myself and we did brief the route. I called for the clearance; we reviewed it and started the taxi. At that point there was no [Set Takeoff Flaps] call and no prompt for the Before Taxi Checklist. We moved a very short distance when I noticed the mistake and began corrections. We set the brakes at the hold short line; ran the checklists; called for departure; and completed the rest of the flight normally.Don't board aircraft without Crew Members present. It creates pressure on all to perform extra to help out. Unfortunately it leaves gaps in the duties; and items can get skipped.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.