B737 Undifferentiated or Other Model
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 120; Flight Crew Total 8000; Flight Crew Type 6203
Time Pressure; Troubleshooting; Situational Awareness; Communication Breakdown
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Other / Unknown
Aircraft Aircraft Damaged; Flight Crew Rejected Takeoff; General Maintenance Action
Aircraft; Human Factors; Procedure
We were asked by Maintenance Control to conduct a high speed taxi test to ascertain if Contract Maintenance had solved a landing gear issue. I had secured both galleys in preparation for the test. We were told it would be a few hours prior to repair to be done so we were escorted to main terminal to get lunch while Maintenance worked on aircraft. Upon return to aircraft the only authorized airstair operator advised us he was leaving. I did not return to aft galley to recheck. We taxied out to runway with Maintenance man onboard sitting in row 1 on the aisle. He did not want to sit in cockpit jumpseat. The door to flight deck was open in order to communicate with him. After reaching 100 knots (as per discussion with Maintenance Control) RTO braking brought us to sudden deceleration. Fortunately; the door stop mechanism did not hold and the door slammed shut. About one second later an unsecured galley cart from the BACK galley impacted the flight deck door and caused damage to door. There was fortunately no injuries to the 3 of us on board. I don't believe this could be reproduced if tried. The cart did not hit any aisle seats on the way up and hit door at full speed. I fear for the consequences had the door remained open. As the PIC it was my failure to double check the aft galley again. Most importantly; I would like this event to be disseminated to the pilot group for safety sake so that my error will not be repeated.
[Report narrative contained no additional information.]
B737 flight crew reported that an RTO braking test caused an unsecured aft galley cart to impact the cockpit door.