N74

DOUGLAS DC-3 No injuries Part 91 — operator not named in the NTSB record

ATA 3160

Part: DISPLAY — INOPERATIVE · airframe 14,239 hrs · 7,413 cycles

DISPLAY FAILED, CABIN HAD SMOKE PRESENT WITH STRONG ELECRICAL ODOR. A DETAILED SMOKE & FUMES INSPECTION WAS PERFORMED. DISPLAY HAD A STRONG ELECRICAL ODOR. DISPLAY R & R WITH NEW. ACFT POWER APPLIED & RAN FOR AN HOUR, NO SMOKE OR ELECTRICAL ODORS NOTED.

ATA 2810

Part: FUEL CAP — UNSECURE (LT WING)

AFTER REACHING FL200, FUEL STREAMING FROM LEFT OUTBOARD FUEL CAP WAS OBSERVED BY CREW. EMERGENCY WAS DECLARED AND AN UNEVENTFUL LANDING WAS MADE.

ATA 2120

Part: HOSE — RESTRICTED (AFIS CDU) · airframe 13,096 hrs · 6,852 cycles

DURING FLIGHT INSPECTION MISSION, LOST GPS UPDATING (HONEYWELL) AND SHORTLY THEREAFTER NOTICED A BURNING ELECTRICAL SMELL. ALL THREE CREW NOTICED THE SMELL. SMELL SOON DISSIPATED. PULLED GPS BREAKER ON AFT BREAKER PANEL AND TURNED OFF MISSION POWER. LANDED UNEVENTFULLY AND WROTE UP DISCREPANCY. IN HANGAR ON GPU POWER, OPERATED ALL ELECTRICAL SYSTEMS. VERIFIED OPERATION OF ALL COOLING FANS IN THE AFIS RACK, IRU BLOWER, AND EFIS BLOWER. FOUND WEAK AIR FLOW TO AFIS CDU. REPAIRED RESTRICTED HOSE. CHECKED ALL COMPONENTS FOR EVIDENCE OF OVERHEATING. FOUND NO FURTHER PROBLEMS. RETURNED AIRCRAFT TO SERVICE.

ATA 7510

Part: TUBE — BROKEN (LT ENGINE) · airframe 11,882 hrs · 6,268 cycles

ON GROUND WHEN ENGINES STARTED (WITH BLEEDS IN ENVIRONMENTAL) STRONG EXHAUST SMELL IN CABIN. SMELL GOES AWAY ONCE AIRCRAFT PRESSURIZES. WHEN AIRCRAFT STARTED WITH BLEEDS OFF (PNEUMATIC AND ENVIRONMENTAL) NO EXHAUST SMELL IN CABIN. ON TOUCHDOWN IMMEDIATELY GOT THE ODOR DURING ROLLOUT. WROTE UP DISCREPANCY. INSPECTION OF LT ENGINE FOUND INBOARD EXHAUST FLEX TUBE BROKEN.

ATA 3260

Part: SQUAT SWITCH — DEFECTIVE (RT MLG) · airframe 10,330 hrs · 5,509 cycles

LANDING GEAR HANDLE CANNOT BE RAISED INFLIGHT WITHOUT USING DOWNLOCK RELEASE. REPLACED SWITCH ON RT MAIN SCISSORS.

ATA 7931

Part: TRANSDUCER — FAILED (OIL PRESSURE)

RT ENGINE OIL PRESSURE INDICATION WAS ABOVE 200 PSI. CREW NOTICED SLIGHT OIL SMELL IN AC. PRECAUTIONARY SHUTDOWN OF RT ENGINE IN FLIGHT. ALL OTHER INDICATIONS WERE NORMAL. REPLACED OIL PRESSURE TRANSDUCER. (K)

ATA 3230

Part: HOOK — FAILED (RT MLG) · airframe 8,207 hrs · 4,530 cycles

J-HOOK OVER LANDING GEAR SELECTOR HANDLE IN COCKPIT RETRACTED WITH AIRCRAFT ON GROUND. LUBRICATED AND ACTUATED (J) HOOK AND RIGGED RIGHT MAIN LANDING GEAR SAFETY SWITCH, IAW MM. TIGHTENED B-NUT ON RT MAIN LANDING GEAR ACTUATOR AND SERVICE HYDRAULIC SYSTEM. OPERATIONAL AND LEAK CHECK SATISFACTORY. THE MAINTENANCE APPROVED, RETURNED TO SERVICE. (WO 13396)

ATA 2697

Part: WIRE — MELTED (BLEED AIR)

CLIMBING THROUGH16,500 FT MSL, LT BLEED AIR LIGHT FLASHED THEN STEADY. FOLLOWED EMERGENCY PROCEDURE AND LANDED. DURING DESCENT, BLEED AIR FAIL LIGHT EXTINGUISHED. INVESTIGATION REVEALED THAT THE BLEED AIR SENSING LINE HAD A MELTED PLACE, WHICH CAUSED THE BLEED AIR LIGHT TO COME ON. SENSING LINE WAS REPLACED, AND SYSTEM OPERATIONAL CHECK. AIRCRAFT RETURNED TO SERVICE. (M)

ATA 3230

Part: POWERPACK — MALFUNCTIONED (HYD SYSTEM)

PUT GEAR HANDLE DOWN, NOTHING HAPPENED, NO LIGHTS, NO LANDING GEAR EXTENDED. EXECUTED MANUAL EXTENSION PROCEDURE, THREE GREEN LIGHTS, NO RED, LANDED UNEVENTFUL. PREVIOUS TO ABOVE, ELECTRICAL (SURGE). FAILED AUTOPILOT AND TECHS PANEL. RESET PANEL AND AUTOPILOT. RETURNED TO NORMAL OPS. AFTER LANDING, TURNED AIRCRAFT OVER TO MAINTENANCE TO TROUBLESHOOT PROBLEM. JACKED AIRCRAFT, APPLIED 20 PSI SHOP AIR TO POWER PACK, RAN GEAR FOR 5 FAULT FREE CYCLES. APPLIED ELECTRICAL LOAD ON AIRCRAFT TO SIMULATE FLIGHT CONDITIONS FOR 2 HOURS, RAN GEAR FOR 5 FAULT FREE CYCLES AND PLACED AIRCRAFT ON GROUND. RAN ENGINES TO CHECK BLEED AIR AT HYD POWER PACK. ALL FUNCTIONS OPERATIONAL, CHECKED GOOD.

ATA 2121

Part: RELAY — BURNED (BLOWER)

WHITE SMOKE FILLED CABIN FROM BACK. OBSERVER SAID IT WAS NOT COMING FROM EQUIPMENT RACKS. SMELLED LIKE BURNING WOOD OR PAPER . FIRE DEPARTMENT FOUND NO UNUSUAL HOT SPOTS. RUNWAY 18R WAS CLOSED FOR APPROX 20 MIN WHILE FIRE DEPARTMENT INVESTIGATED. AIRCRAFT WAS THEN TAXIED WITHOUT INCIDENT. FOUND K3 CONDENSER BLOWER RELAY (PN MS24166D1) BURNED. REPLACED BLOWER RELAY AND TRANSORB DIODE.

ATA 2121

Part: BLOWER — FAILED (E/E COMPT)

THE FLT CREW NOTICED A BURNING ODOR/FUMES AT CRUISE ALTITUDE. NO VISIBLE SMOKE WAS NOTED. DURING THIS TIME THE PANEL TECH NOTICED THAT THE TEMPERATURE IN THE CABIN AVIONICS EQUIPMENT RACK HAD INCREASED TO ABOUT 33 DEGREES CELSIUS. AIRCRAFT MAD UNSCHEDULED LANDING. SYSTEM OPERATED FOR SEVERAL HOURS IN THE HANGAR WITH NO DISCREPANCIES NOTED. REPLACED THE AUXILIARY AIR CONDITIONER BLOWER IN THE CABIN AVIONICS EQUIPMENT RACK. NO VISIBLE DAMAGE COULD BE FOUND ON THE REMOVED MOTOR. SYSTEM OPERATED NORMALLY. (M)