What was found
CLIMBING THROUGH 7,000 FEET, GOT NR 1 ENGINE FIRE WARNING FOR 3 SECONDS THEN WENT OUT. SHUT DOWN NR 1 ENGINE. FLIGHT ATTENDANT REPORTED STRANGE NOISE FROM ENGINES. MAINTENANCE FOUND A CONTAINED STARTER FAILURE. UNDER INVESTIGATION. SUPPLEMENTAL DATA UPDATE: REPLACED STARTER, STARTER SWITCH AND GUARD, STARTER SHUTOFF VALVE, STARTER DEFLECTOR, CSD HOSE, AND STARTER VALVE ARM SWITCH.