What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) The aircraft was parked at the gate. The passengers had already been deplaned. The pilot was dry motoring the #1 engine after a previous hung start. The pilot then observed the fire handle warning light illuminate and then heard the aural fire warning bell sound off. The pilot then pulled the fire handle and used both fire bottles to extinguish the internal engine fire. Both fire handle warning light and warning bell indications ceased. The ARFF arrived on scene and also sprayed 500 lbs. Of extinguishing agent into the #1 engine.
As the FAA filed it
(-23) THE AIRCRAFT WAS PARKED AT THE GATE. THE PASSENGERS HAD ALREADY BEEN DEPLANED. THE PILOT WAS DRY MOTORING THE #1 ENGINE AFTER A PREVIOUS HUNG START. THE PILOT THEN OBSERVED THE FIRE HANDLE WARNING LIGHT ILLUMINATE AND THEN HEARD THE AURAL FIRE WARNING BELL SOUND OFF. THE PILOT THEN PULLED THE FIRE HANDLE AND USED BOTH FIRE BOTTLES TO EXTINGUISH THE INTERNAL ENGINE FIRE. BOTH FIRE HANDLE WARNING LIGHT AND WARNING BELL INDICATIONS CEASED. THE ARFF ARRIVED ON SCENE AND ALSO SPRAYED 500 LBS. OF EXTINGUISHING AGENT INTO THE #1 ENGINE.