Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Critical; Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; Flight Crew Returned To Gate
Aircraft
After pushback attempted to start engine 1. No N1; no fuel flow. Started #2. Attempted to start #1 again. On third attempt no N1; no fuel flow; but we got a fire warning momentarily. We heard a bang and could see smoke. The fire warning went out instantly. We had fire department check for fire and proceeded to the gate.
A320 flight crew reported returning to the gate after experiencing engine start anomalies; including a momentary fire warning; during pushback.