B737-300
Flight Crew Last 90 Days 216
Distraction
Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; Flight Crew FLC complied w / Automation / Advisory
Human Factors
On pushback; ATC issued a runway change. After pushback; we re-ran the numbers for new runway assignment and re-ran the Before Push Checklist. Because we ran a checklist; we failed to run the next checklist because we are not in the habit of running two checklists. While taxiing; the Captain did the throttle burst [check] and noticed an incorrect flap configuration. We stopped the plane and correctly ran all flows and checklists. We took off without incident. 'Don't reply to ATC until engine is started and all flows and checklists are completed.'
Lengthy narrative contains no additional pertinent information.
B737-300 flight crew distracted by an ATC runway change; overlooked the After Start Checklist and neglected to extend the Slats/Flaps.