N7810W
Operators of this aircraft
Who operated this tail, and how firmly we know it.
No operator established for this aircraft.
Accident & incident history
Maintenance disclosures
FALSE FIRE WARNING DURING FLIGHT. AFTER A/C LANDED, PILOT REPORTED INDICATION WAS INTERMITTENT. COWL WAS REMOVED, ENGINE INSPECTED, NO INDICATION OF FIRE/OVERHEAT. DETECTION LOOP INTACT/NO DAMAGE. WIRING CONNECTIONS AT FIREWALL DISCONNECTED, APPEARED TO BE MORE THAN NORMAL BUILD UP OF GRIME/CARBON. CLEANED TERMINALS/CONTACTS, RECONNECTED. GROUND RUN, UNABLE TO DUPLICATE FIRE INDICATION.
FALSE FIRE WARNING DURING FLIGHT. AFTER THE AIRCRAFT LANDED, THE PILOT REPORTED THAT THE INDICATION WAS INTERMITTENT. THE RT ENGINE COWLING WAS REMOVED, AND THE ENGINE WAS INSPECTED. THERE WAS NO INDICATION OF FIRE IN THE ENGINE AREA. THE FIRE LOOP LOOKED OK, NO DAMAGE NOTED. NOT HOT SPOTS ON THE ENGINE WERE NOTED, FROM BLEED AIR LINES OR OTHERWISE. THE WIRING CONNECTIONS AT THE NACELLE FIREWALL WERE DISCONNECTED, AND THERE APPEARED MORE THAN NORMAL BUILD UP OF GRIME AND CARBON. CLEANED THE TERMINALS AND CONTACTS. RECONNECTED THE WIRES. RAN THE AIRCRAFT WITHOUT AND WITH THE COWLINGS ON, COULD NOT DUPLICATE THE FALSE FIRE INDICATION.
DURING INSP BY MECH, A BLACK STREAK (FORE TO AFT) WAS NOTICED ON LT HORIZ STAB, THAT BOOT LOOKED BURNT ON L.E. EXAMINATION REVEALED THAT BOOT MUST HAVE SHORTED AGAINST L.E., BURNING BOTH BOOT AND HORIZ STAB CONSISTED OF NICKEL SIZE HOLE BEING COMPLETELY BURNT THROUGH. NO OTHER INTERNAL STRUCTURES WERE DAMAGED. BOTH BOOT AND L.E. SKIN WERE REMOVED AND REPLACED BY NEW COMPONENTS. LAST SCHEDULED INSP OF TAIL REVEALED NO ANNOMOLIES. AN INSPECTION OF STAB DE-ICE SYST WAS ACCOMPLISHED, INCLUDING SEQUENCE TIMER, WIRING, CIRCUIT BREAKERS, CURRENT LIMITER, TERMINAL BLOCKS, SYST SWITCH, AND CAUTION LIGHT. PILOTS REPORTED NO DISCREPANCIES. CIRCUIT BREAKERS AND CURRENT LIMITER HAD NOT BLOWN PREVENTING THIS MALFUCTION.