AFTER EXPERIENCING A RAPID RISE IN TURBINE TEMP DURING START THE FLC STOPPED THE START AND MOTORED THE ENG WITH THE STARTER GENERATOR AS PER PROC. THE ENG DID NOT STOP TURNING WHEN THE STARTER WAS RELEASED AND SMOKE CAME OUT OF THE ENG. THE FIRE ON THE GND CHKLIST WAS COMPLETED; THE PAX WERE EVACED; AND THE FIRE TRUCKS WERE CALLED. WITH THE SHUTDOWN OF THE ELECTRIC THE ENG STOPPED; THE SMOKE STOPPED AND THE PROB ENDED.
Synopsis
AFTER EXPERIENCING A RAPID RISE IN TURBINE TEMP DURING START THE FLC STOPPED THE START AND MOTORED THE ENG WITH THE STARTER GENERATOR AS PER PROC. THE ENG DID NOT STOP TURNING WHEN THE STARTER WAS RELEASED AND SMOKE CAME OUT OF THE ENG. THE FIRE ON THE GND CHKLIST WAS COMPLETED; THE PAX WERE EVACED; AND THE FIRE TRUCKS WERE CALLED. WITH THE SHUTDOWN OF THE ELECTRIC THE ENG STOPPED; THE SMOKE STOPPED AND THE PROB ENDED.
Narrative
REGULAR SCHEDULED FLT; 3 PAX ON BOARD; PLUS FLT ATTENDANT AND 2 OF US; THE FLC. THE CAPT CALLED FOR THE ENG START CHKLIST AND WE STARTED THE #2 AS USUAL. EVERYTHING WAS NORMAL. THEN WE PROCEEDED WITH #1. WE NOTICED AN UNUSUALLY QUICK RISE IN THE TURBINE TEMP AND ABORTED THE ENG START. WE WAITED THE REQUIRED COOL DOWN TIME; AND MUTUALLY ELECTED TO DRY MOTOR THE #1 ENG TO CLR ANY POSSIBLE EXCESS FUEL AFTER THE HOT START. WE TIMED DRY MOTORING AND WELL WITHIN THE LIMITATIONS ABORTED THE START. BUT THE ENG WAS STILL TURNING. WE VERIFIED THAT THE CONDITION LEVER WAS IN FUEL-CUTOFF; START SWITCH WAS ABORTED AND THE IGNITION SWITCH IN OFF POS. SMOKE STARTED TO COME FROM THE #1 ENG. THE CAPT CALLED FOR 'SHUT DOWN #2' AND PROPER SHUTDOWN WAS COMPLETED. WE HAD AN ENG SMOKING AND WANTED TO CONCENTRATE ON THE POSSIBLE FIRE. WE WANTED TO TAKE CARE OF THE FIRE; EVAC IF NECESSARY AND SHUT DOWN THE AIRPLANE AS REQUIRED. SMOKE INCREASED; BUT WE HAD NO FIRE WARNING OR INDICATION ON THE INSTS. THE CAPT PULLED THE T-HANDLE AND WE DID THE 'ENG FIRE ON GND' CHKLIST. THE ENG STILL TURNED; SLOW NH AND VERY SLOW WINDMILLING PROP. WE CALLED THE FIRE TRUCKS. THE CAPT COORDINATED THE EVAC OF OUR 3 PAX WITH THE FLT ATTENDANT AND GND PERSONNEL WITH EMPHASIS ON KEEPING PAX AWAY FROM THE SMOKING ENG AND POSSIBLE FIRE. AS EVAC WAS ACCOMPLISHED WE DID A COMPLETE SHUTDOWN OF ELECTRIC PWR. SHORTLY AFTER THIS THE ENG STOPPED. THE FIREMAN FOUND EVIDENCE OF FIRE AND OPENED UP THE ENG COWLING AND SPRAYED LIGHT PRESSURE WATER. THE SMOKE STOPPED AND THE INCIDENT WAS OVER. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE ACFT WAS AN EMBRAER 120. HE STATED THE PROB WAS A STARTER/GENERATOR RELAY THAT FAILED IN THE CLOSED POS CAUSING THE STARTER TO CONTINUE MOTORING THE ENG. THE RPTR STATED THIS PARTICULAR STARTER/GENERATOR WAS BEING MONITORED BY COMPANY MAINT AS BEING A POSSIBLE PROB.
Source: NASA Aviation Safety Reporting System (public domain). Reports are voluntary submissions and are not verified by NASA.