Narrative:

We were about to takeoff on 28; and dispatch advised us to return to the gate due to a power outage [at destination]. We returned to a gate in bwi; shut one engine down; but waited at least 30 minutes for a ground crew to park us. After about 35 minutes; dispatch advised us that [destination] was open again. We were still waiting to be parked; so we amended our release for the fuel we burned; ran the numbers for our lighter weight; ran the before push and before taxi checklists; and taxied back to runway 28 for departure. During the initial climb; I noticed that we had departed without arming the autobrakes.we should have run the before start checklist before we restarted the number 2 engine again; due to the fact that we did the after landing flow while we were taxiing back to the gate.

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Original NASA ASRS Text

Title: B737 Captain reported taking off without arming the autobrakes.

Narrative: We were about to takeoff on 28; and Dispatch advised us to return to the gate due to a power outage [at destination]. We returned to a gate in BWI; shut one engine down; but waited at least 30 minutes for a Ground Crew to park us. After about 35 minutes; Dispatch advised us that [destination] was open again. We were still waiting to be parked; so we amended our Release for the fuel we burned; ran the numbers for our lighter weight; ran the Before Push and Before Taxi Checklists; and taxied back to Runway 28 for departure. During the initial climb; I noticed that we had departed without arming the autobrakes.We should have run the Before Start Checklist before we restarted the number 2 engine again; due to the fact that we did the after landing flow while we were taxiing back to the gate.

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.