Narrative:

We were holding in position on runway 18L; the tower cleared us 'RNAV ribzz; cleared for takeoff runway 18L'. I replied that we had westn in our FMS; and the controller replied that westn was for BBKNG1 departure; and we were supposed to be on the BBKNG2. Takeoff clearance was canceled; and we were given instructions to clear the runway and contact clearance delivery for a new departure. After clearing the runway we discovered the FMS nav database to be out of date. With the parking brake set the captain swapped databases and reloaded the flight plan with the new departure. We verified the waypoints; re-ran the checklists; and departed uneventfully.I was complacent in my departure brief (this was the 4th day in a row of [same airport] out and backs); and didn't verify the BBKNG2 vs. BBKNG1. Very surprised I didn't catch the wrong initial waypoint in the FMS vs. The commercial chart efb. [We] should have been more deliberate in the departure briefing.

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Original NASA ASRS Text

Title: An MD-10 flight crew had to refuse their takeoff clearance when they discovered they had an out of date FMS active database. After exiting the runway the retrieved and activated the current database and subsequently completed the trip without further incident.

Narrative: We were holding in position on Runway 18L; the Tower cleared us 'RNAV RIBZZ; cleared for takeoff Runway 18L'. I replied that we had WESTN in our FMS; and the Controller replied that WESTN was for BBKNG1 departure; and we were supposed to be on the BBKNG2. Takeoff clearance was canceled; and we were given instructions to clear the runway and contact Clearance Delivery for a new departure. After clearing the runway we discovered the FMS Nav database to be out of date. With the parking brake set the Captain swapped databases and reloaded the flight plan with the new departure. We verified the waypoints; re-ran the checklists; and departed uneventfully.I was complacent in my departure brief (this was the 4th day in a row of [same airport] out and backs); and didn't verify the BBKNG2 vs. BBKNG1. Very surprised I didn't catch the wrong initial waypoint in the FMS vs. the Commercial Chart EFB. [We] should have been more deliberate in the departure briefing.

Data retrieved from NASA's ASRS site as of July 2013 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.