What happened
The FAA’s narrative, in sentence case. The FAA writes it in capitals and removes private details.
(-23) Pilot reported that after shutting down of the engines, the first officer exited the aircraft to rotate the engines propeller for heat dissipation (which is a normal procedure for this type of aircraft engines), he noted smoke exiting the tailpipe from number two engine. In looking for the source, the pilot observed flames inside the tailpipe. The first officer advised the captain of the situation who proceeded with the engine check list and discharged the engine fire extinguisher system. There was no fire warning on the aircraft at the time or at any time during the event. No further indication of fire was noted after discharged of the extinguisher system and no damage was found. During troubleshooting, it was noted, that unwarranted fuel, flow into the engine while it was spooling down after shutdown was initiated. Further inspection revealed an intermittent fault in the auto ignition pressure switch circuit was found, causing fuel to be reintroduced while the engine rotation slowed. Replacement of the auto ignition switch corrected the fault.
As the FAA filed it
(-23) PILOT REPORTED THAT AFTER SHUTTING DOWN OF THE ENGINES, THE FIRST OFFICER EXITED THE AIRCRAFT TO ROTATE THE ENGINES PROPELLER FOR HEAT DISSIPATION (WHICH IS A NORMAL PROCEDURE FOR THIS TYPE OF AIRCRAFT ENGINES), HE NOTED SMOKE EXITING THE TAILPIPE FROM NUMBER TWO ENGINE. IN LOOKING FOR THE SOURCE, THE PILOT OBSERVED FLAMES INSIDE THE TAILPIPE. THE FIRST OFFICER ADVISED THE CAPTAIN OF THE SITUATION WHO PROCEEDED WITH THE ENGINE CHECK LIST AND DISCHARGED THE ENGINE FIRE EXTINGUISHER SYSTEM. THERE WAS NO FIRE WARNING ON THE AIRCRAFT AT THE TIME OR AT ANY TIME DURING THE EVENT. NO FURTHER INDICATION OF FIRE WAS NOTED AFTER DISCHARGED OF THE EXTINGUISHER SYSTEM AND NO DAMAGE WAS FOUND. DURING TROUBLESHOOTING, IT WAS NOTED, THAT UNWARRANTED FUEL, FLOW INTO THE ENGINE WHILE IT WAS SPOOLING DOWN AFTER SHUTDOWN WAS INITIATED. FURTHER INSPECTION REVEALED AN INTERMITTENT FAULT IN THE AUTO IGNITION PRESSURE SWITCH CIRCUIT WAS FOUND, CAUSING FUEL TO BE REINTRODUCED WHILE THE ENGINE ROTATION SLOWED. REPLACEMENT OF THE AUTO IGNITION SWITCH CORRECTED THE FAULT.
Other reports on N61NE · 2
Matched to the same aircraft by N-number and date.