B737-800
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 177
Situational Awareness
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Became Reoriented; Flight Crew Rejected Takeoff
Aircraft; Human Factors; Company Policy
During takeoff; the Aft Entry Door annunciator illuminated; I initiated the reject at 74 knots. The aircraft was allowed to roll to; and exit on the next appropriate taxiway.  After the QRH was accomplished; I made a PA to inform the Crew and Passengers. Did a brake cooling calculation (no brake cooling required); then called the FA's to ask them to cycle the door handle. Once they did; the door annunciator extinguished.  A logbook entry was made; but I failed to contact Dispatch per the Event Reporting Requirements Table. The Assistant Chief Pilot; subsequently called and pointed out my omission. I thank him for his professionalism.
B737-800 Captain reported rejecting a takeoff when the aft entry door annunciator illuminated. After clearing the runway; the Flight Attendant was asked to cycle the door handle. The warning extinguished and the flight departed. The Dispatcher was not contacted as required by the FOM.