N340LS

Part: SERVICE DOOR — OPEN (COWLING) · airframe 12,187 hrs · 10,958 cycles

OIL SERVICE DOOR ON COWL 422BL OPENED INFLIGHT. MAINTENANCE SECURED DOOR CLOSED. INSPECTED COWL, NO DAMAGE NOTED.

Part: ALTERNATOR — FAILED (ENGINE)

DEN - FLT 427 - APPROX HALFWAY EN ROUTE TO ASE FROM DEN, CREW RECEIVED A LT ALTERNATOR FAIL MESSAGE. CREW CONTACTED MX CONTROL AND ADVISED OF THE SITUATION. CREW REQUESTED TO CONTINUE TO ASE AND MX CONTROL CONCURRED. ON SHORT FINAL INTO ASE CREW NOTICED THAT THE LT ENGINE TORQUE HAD DROPPED TO ZERO. CREW MANUALLY FEATHERED PROPELLER AND LANDED IN ASE UNEVENTFULLY. MAINTENANCE INSPECTED THE AIRCRAFT AND DTERMINED THE LEFT ENGINE ALTERNATOR HAD FAILED AND IN DOING SO HAD CUT THE P3 AIR SUPPLY TUBE. MAINTENANCE REPLACED THE ALTERNATOR AND P3 AIR TUBE. MAINTENANCE ALSO INSPECTED ENGINE AREA TO VERIFY NO OTHER PROBLEMS EXISTED. MAINTENANCE PERFORMED NECESSARY OPERATIONAL CHECKS. ALL CHECKS WERE SATISFACTORY

Part: INDICATOR — MALFUNCTIONED (COCKPIT)

FLT 358 - DURING TAKEOFF ROLL, THE FIRST OFFICER NOTICED THAT THERE WAS NO INDICATION FOR THE AUTO FEATHER SYSTEM ON THE ICAS PAGE HE THEN LOOKED ON THE OVER TO SEE IF IT WAS ARMED, THERE WAS NO INDICATION OF IT BEING ARMED. AT THAT TIME WE INITIATED AN ABORTED TAKEOFF AND RETURNED TO THE TERMINAL TO HAVE MAINTENANCE TO TAKE A LOOK AT THE AIRCRAFT. MAINTENANCE PERFORMED GROUND RUNS AND TEST ON THE AUTO FEATHER SYSTEM AND COULD NOT DUPLICATE THE PROBLEM. (M)

Part: CONNECTOR — DIRTY (RT MLG)

DFW/CUU - FLT 445 - AFTER TAKING POSITION ON THE ACTIVE RUNWAY AND PRIOR TO TAKEOFF ROLL, CREW RECEIVED A 'PROXI LOCK FAIL' AND 'PROXI HYD FAIL' EICAS MESSAGE AND CAUTION CHIME. CREW CANCELLED TAKEOFF CLEARANCE AND TAXIED OFF RUNWAY AND BACK TO GATE. PROXI PROBLEM RECURRED TWICE EN ROUTE TO GATE. DURING T/S MAINT REMOVED CANNON PLUG ON RT GEAR DOWNLOCK AND FOUND IT CONTAMINATED. MAIN CLEANED OUT DEBRIS AND RE-INSTALLED CANNON PLUG, PEROFMRED PLUG, PERFORMED OPS CHECKS AND TAXI CHECKS, ALL SATISFACTORY IAW MFG MM. ACFT RETURNED TO REVENUE SERVICE.

Part: POWER PACK — INOPERATIVE (CABIN)

DFW-CUU - FLT 455 - UPON ARRIVAL IN CREW, FOUDN THAT LAST ROW OF EMERGENCY LIGHTING HAD BECOME INOPERATIVE. DISCREPANCY WAS DOCUMENTED IN FLT TIME AND MX LOG. CONTRACT MX INSPECTED AND DETERMINED THAT AIRCRAFT WAS SAFE TO FERRY FROM CUU TO DFW WHERE REPAIRS COULD BE MADE. UPON ARRIVAL IN DFW, MX TROUBLESHOT SYSTEM AND FOUND EMERGENCY POWER SUPPLY BATTERY PACKS DEFECTIVE. ALL BATTERY PACKS WERE SCHEDULED FOR REPLACEMENT PRIOR TO THE END OF SEPT 1997 THEREFORE MX REPLACED ALL EMERGENCY LIGHT BATTERY POWER PACKS IAW JIC 33-51-01. OPS CHECK SATISFACTORY. AIRCRAFT RETURNED TO SERVICE. (M)

Part: O-RING — DAMAGED (INLET ADAPTER)

AFTER TAKEOFF FROM TSY, THE LT ENGINE OIL PRESSURE STARTED FLUCTUATING AND BEGAN DROPPING OFF. THE CAPTAIN DID A PRECAUTIONARY SHUT DOWN AND RETURNED TO TSY AND LANDED WITHOUT FURTHER INCIDENT. THE O-RING IN THE OIL RETURN QUICK DISCONNECT WAS FOUND DAMAGED. THE O-RING WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: WINDSHIELD — SHATTERED (RT COCKPIT)

WHILE EN ROUTE FROM CUU TO DFW, THE FLIGHT CREW HEARD A POPPING SOUND AND THE FIRST OFFICERS FRONT WINDSHIELD, OUTER LAYER SHATTERED. THE AIRCRAFT CONTINUED TO DFW AND LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS FERRIED TO HOT WHERE THE WINDSHIELD WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. DORNIER HAS ISSUED A SERVICE BULLETIN WHICH REPLACES ALL LIGHT WEIGHT WINDSHIELDS WITH A HEAVIER WINDSHIELD.

Part: WINDSHIELD — SHATTERED (LT COCKPIT)

WHILE EN ROUTE AT CRUISE ALTITUDE, THE FLIGHT CREW HEARD A POPPING SOUND AND THE LEFT WINDSHIELD OUTER PANE SHATTERED. THE AIRCRAFT CONTINUED INTO DFW WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS FERRIED TO HOT WHERE THE WINDSHIELD WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: WINDSHIELD — DELAMINATED (LT COCKPIT)

PILOTS LEFT SIDE WINDSHIELD DELAMINATED SEVERELY IN FLIGHT FROM ASE TO DFW. THE AIRCRAFT LANDED AT DFW WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS THEN FERRIED TO HOT WHERE THE WINDSHIELD WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. THIS IS AN ON GOING PROBLEM THAT THE MANUFACTURER IS AWARE OF. (M)

Part: WINDSHIELD — DELAMINATED (LT SIDE)

PILOTS LEFT SIDE WINDSHIELD DELAMINATED SEVERELY IN FLIGHT FROM ASE TO DFW. THE AIRCRAFT LANDED AT DFW WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS THEN FERRIED TO HOT WHERE THE WINDSHIELD WAS REPLACED AND THE AIRCRAFT WAS RETURNED TO SERVICE. THIS IS AN ON GOING PROBLEM THAT THE MANUFACTURER IS AWARE OF. (M)

Part: PSEU BOX — FAILED (E/E COMPT)

AFTER DEPARTING DFW EN ROUTE TO ASE, PROXIMITY SYSTEM FAIL LIGHT CAME ON ALONG WITH HYDRAULIC SYSTEM FAIL. PILOT RETURNED TO DFW AND LANDED WITHOUT FURTHER INCIDENT. UPON INSPECTION, THE PSEU BOX WAS FOUND TO BE FAULTY. REPLACED THE PSEU BOX. ALL SYSTEMS CHECKED NORMAL. AIRCRAFT WAS RELEASED FOR CONTINUED SERVICE.

Part: UPLOCK — ICED UP (LT MLG)

AFTER DEPARTING DFW, THE FLIGHT CREW SELECTED GEAR UP, NEITHER MAIN GEAR WOULD SHOW UP AND LOCKED. THE CREW THEN SELECTED GEAR DOWN WITH NO PROBLEM. THEY THEN RETURNED TO DFW AND LANDED WITHOUT FURTHER INCIDENT. INSPECTION REVEALED THAT THE MAIN GEAR UPLOCK ROLLERS AND HOOKS HAD ICED OVER. DE-ICED THE GEAR SYSTEMS, NO FURTHER PROBLEMS NOTED. THIS IS A POST SB-328-30-132 (SLUSH GUARDS) AIRCRAFT. (M)

Part: UPLOCK — ICED UP (RT MLG)

AFTER DEPARTING DFW, THE FLIGHT CREW SELECTED GEAR UP, NEITHER MAIN GEAR WOULD SHOW UP AND LOCKED. THE CREW THEN SELECTED GEAR DOWN WITH NO PROBLEM. THEY THEN RETURNED TO DFW AND LANDED WITHOUT FURTHER INCIDENT. INSPECTION REVEALED THAT THE MAIN GEAR UPLOCK ROLLERS AND HOOKS HAD ICED OVER. DE-ICED THE GEAR SYSTEMS, NO FURTHER PROBLEMS NOTED. THIS IS A POST SB-328-30-132 (SLUSH GUARDS) AIRCRAFT. (M)

Part: TRANSDUCER — FAILED (LT ENG GEAR BOX)

AIRCRAFT DEPARTED RIL, FLIGHT NR 100, EN ROUTE TO DFW WHEN THE LEFT ENGINE OIL PRESSURE STARTED FLUCTUATING EXCESSIVELY. THE PILOT SHUTDOWN THE LEFT ENGINE AND RETURNED TO RIL WITHOUT FURTHER INCIDENT. UPON TROUBLESHOOTING, FOUND THE LEFT GEARBOX PRESSURE TRANSDUCER WAS BAD. REPLACED TRANSDUCER, GROUND RAN, ALL SYSTEMS CHECKED NORMAL. AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: SENSOR — FAILED (LT ENGINE)

DTW - AIRCRAFT WAS ON DESCENT TO LAND AT DTW WHEN ECU FAIL MESSAGE APPEARED. THE PILOT RESET THE ECU AND IT STAYED ON LINE FOR APPROXIMATELY 4 MINUTES, THEN FAILED AGAIN. THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. THE AIRCRAFT WAS FERRIED TO HOT FOR MAINTENANCE. INSPECTION REVEALED THE T18 SENSOR HAD CARBON TRACKING ALONG SENSOR WHICH SENT A BOGUS READING TO THE EEC CAUSING THE FAILURE. THE T18 SENSOR WAS REPLACED AND THE AIRCRAFT RETURNED TO SERVICE.