Narrative:

Regular scheduled flight, 3 passenger on board, plus flight attendant and 2 of us, the flight crew. The captain called for the engine start checklist and we started the #2 as usual. Everything was normal. Then we proceeded with #1. We noticed an unusually quick rise in the turbine temperature and aborted the engine start. We waited the required cool down time, and mutually elected to dry motor the #1 engine to clear any possible excess fuel after the hot start. We timed dry motoring and well within the limitations aborted the start. But the engine was still turning. We verified that the condition lever was in fuel-cutoff, start switch was aborted and the ignition switch in off position. Smoke started to come from the #1 engine. The captain called for 'shut down #2' and proper shutdown was completed. We had an engine smoking and wanted to concentrate on the possible fire. We wanted to take care of the fire, evacuate/evacuation if necessary and shut down the airplane as required. Smoke increased, but we had no fire warning or indication on the instruments. The captain pulled the t-handle and we did the 'engine fire on ground' checklist. The engine still turned, slow nh and very slow windmilling propeller. We called the fire trucks. The captain coordinated the evacuate/evacuation of our 3 passenger with the flight attendant and ground personnel with emphasis on keeping passenger away from the smoking engine and possible fire. As evacuate/evacuation was accomplished we did a complete shutdown of electric power. Shortly after this the engine stopped. The fireman found evidence of fire and opened up the engine cowling and sprayed light pressure water. The smoke stopped and the incident was over. Callback conversation with reporter revealed the following information: the reporter stated the aircraft was an embraer 120. He stated the problem was a starter/generator relay that failed in the closed position causing the starter to continue motoring the engine. The reporter stated this particular starter/generator was being monitored by company maintenance as being a possible problem.

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Original NASA ASRS Text

Title: 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.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.