Narrative:

During bleeds-off takeoff roll; master caution light came on at approximately 80 KTS. First officer made call outs. Captain elected to reject takeoff. Used rejected takeoff auto brakes and thrust reverser's. [We] achieved maximum speed of 110 KTS. [We] followed QRH brake cooling chart and consulted dispatcher and operations. [We] secured the aft entry door which had activated the master caution light. Parked in runup area for approximately one hour while fire chief confirmed brakes and tires were not too hot and no smoke or fire. Returned to gate; maintenance rechecked tires and brakes; continued flight. Aft entry caution light annunciated during a bump on takeoff roll moving approximately 3/8 inch from full closed position therefore activating master caution light. B flight attendant said that that door had not been open during ground time. She had not touched the handle on that leg of the flight. Therefore I suggest all boeing 737 doors be checked for tolerance limits and tightness (so that handle cannot move on its own) and flight attendants be required to physically touch/confirm all door handles are full closed on each leg.

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Original NASA ASRS Text

Title: B737 Captain reports rejecting the takeoff at 110 KTS when a door warning master caution light illuminates. The door handle apparently moved slightly when the aircraft rolled over a bump during takeoff.

Narrative: During Bleeds-off takeoff roll; Master Caution light came on at approximately 80 KTS. First Officer made call outs. Captain elected to reject takeoff. Used RTO auto brakes and thrust reverser's. [We] achieved maximum speed of 110 KTS. [We] followed QRH brake cooling chart and consulted Dispatcher and Operations. [We] secured the aft entry door which had activated the master caution light. Parked in runup area for approximately one hour while Fire Chief confirmed brakes and tires were not too hot and no smoke or fire. Returned to gate; Maintenance rechecked tires and brakes; continued flight. Aft entry caution light annunciated during a bump on takeoff roll moving approximately 3/8 inch from full closed position therefore activating master caution light. B Flight Attendant said that that door had not been open during ground time. She had not touched the handle on that leg of the flight. Therefore I suggest all Boeing 737 doors be checked for tolerance limits and tightness (so that handle cannot move on its own) and flight attendants be required to physically touch/confirm all door handles are full closed on each leg.

Data retrieved from NASA's ASRS site as of April 2012 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.