B737-700
Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 150; Flight Crew Type 17500
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
General Maintenance Action
Aircraft
Approaching the gate; Marshaller stopped us 2 to 3 feet short and reported flames coming from Number 1 engine. Although; there were no cockpit indications of a fire; we accomplished the Engine Fire Checklist per QRH and were then towed to gate.
Arriving at gate the Marshaller pointed at the aircraft and was behaving in a very excited manner. By this time; the Marshaller was out of my sight. The Captain opened his window and we were told we have a number one engine fire. Memory action items and QRH were completed as well as CFR were notified. Maintenance told the pilots they heard an 'odd' noise from the engine and came out of the break room to take a look. During flight; the crew noticed no abnormal operation of the engine. The flight crew never received any fire warning indications in the cockpit and one fire bottle was discharged.
B737 flight crew is informed during taxi in to the gate that the left engine is on fire. The engine is shut down per QRH procedures with one fire bottle fired but no fire indications.