B737-800
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Critical
Aircraft Equipment Problem Dissipated
Aircraft
In cruise flight the fire warning light on the glare shield illuminated for less than two seconds and the fire bell rang intermittently three times. There were no other associated lights on the master caution; center pedestal engine fire warning/overheat; or cargo fire warning panel. Two minutes later the fire warning light on the First Officer's glare shield flickered once for a fraction of a second without any other lights or the fire warning bell. All engine indications were normal. I called Dispatch; Maintenance Control; and the FODO to explain our situation. Maintenance Control said it was most likely a fault in the First Officer's side and we still had full fire warning/overheat detect capability. There are no QRH items for such a scenario and we unanimously concluded it was safe to proceed as along as the fire warning light and or bell did not come on again. We consulted with dispatch to be ready for a possible diversion and checked the weather at suitable airports along our route and made sure that our route keep us close to suitable airport at all times. The flight was completed without further incident. It was far safer to continue on that to land at an unfamiliar airport at night with no braking reports and no ground crew for an false warning indication.
B737-800 Captain reported intermittent false engine fire warning in cruise flight. After consulting with ground personnel the flight continued to destination.