B737-300
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 183; Flight Crew Type 10500
Aircraft Equipment Problem Critical
Aircraft Aircraft Damaged; Flight Crew Rejected Takeoff; General Declared Emergency; General Maintenance Action
Aircraft
V1/VR speeds were 150 KIAS. At about 120 KIAS we experienced Master Fire Warning lights with bells but without fire lights in any fire handle or other protected area. We rejected the takeoff and; at about 50 knots during the stop process; the lights and bell stopped by themselves. We had no indication of fire from then on. The tires felt fine as we exited the runway onto a high speed taxiway and stopped in the widest area of the pavement. We held the brakes manually while we ran the checklists for the rejected takeoff and a suspected engine overheat. Because it was a high energy reject we called for the fire department to check out the tires. They informed us that three of the four fuse plugs had melted and deflated the tires. We called for jet stairs and busses and deplaned the passengers once the brakes had cooled enough to be safe. We did a detailed write-up in the logbook and handed the aircraft over to Maintenance. No slides were popped and no injuries were reported to the passengers or crew.
We suspected an engine overheat had occurred so we ran the Engine Overheat Checklist and RTO Checklist. We calculated the brake energy at 25.8 ft/lbs.
The flight crew of a B737-300 rejected their takeoff at high speed when Master Fire Warnings illuminated along with aural warnings but without an identifying source light. Multiple fuse plugs melted requiring the passengers and crews to be bussed to the terminal.