N5YV

Part: SWITCH — INOPERATIVE (AUTOFEATHER SYS) · airframe 24,093 hrs · 36,473 cycles

DURING TAKE OFF ROLL ON FLIGHT ABOUT 80 KILOMETERS OUT, THE AUTOFEATHER ON AND REPEATER LIGHTS WENT OUT. THIS INDICATED THAT THE AUTOFEATHER WAS NOT ARMED. THE FLIGHT CREW ABORTED THE TAKE OFF AND RETURNED TO THE GATE WITH NO FURTHER INCIDENT. MAINTENANCE ADJUSTED THE AUTOFEATHER THROTTLE SWITCHES AND DID A SYSTEM CHECK. NO PARTS WERE USED.

Part: GAS GENERATOR — FAILED (Zone 500) · airframe 23,688 hrs · 35,790 cycles

WHILE INFLIGHT FROM PANAMA CITY, FLORIDA THE LEFT ENGINE LOW OIL PRESSURE ANNUNCIATOR ILLUMINATED. THE OIL PRESSURE WAS BELOW 60 PSI. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO FIELD WITH NO FURTHER INCIDENT. THE CORRECTIVE ACTION WAS THE THE LEFT GAS GENERATOR AND THE POWER SECTION WAS REPLACED. TEARDOWN REPORT WILL BE AVAILABLE AT A LATER DATE.

Part: GAS GENERATOR — MALFUNCTIONED (LT ENGINE)

LEFT ENGINE LOW OIL PRESSURE ANNUNCIATOR ILLUMINATED IN FLIGHT. OIL PRESSURE WAS BELOW 60 PSI, LEFT ENGINE SHUTDOWN. LEFT GAS GENERATOR AND POWER SECTION WERE REPLACED. (M)

Part: ENGINE — LACK OF LUBE (LEFT) · airframe 23,688 hrs · 35,790 cycles

WHILE INFLIGHT FROM PANAMA CITY, FLORIDA THE LEFT ENGINE LOW OIL PRESSURE ANNUNCIATOR ILLUMINATED. THE OIL PRESSURE WAS BELOW 60 PSI. THE ENGINE WAS SHUT DOWN AND THE AIRCRAFT WAS RETURNED TO FIELD WITH NO FURTHER INCIDENT. THE CORRECTIVE ACTION WAS THE THE LEFT GAS GENERATOR AND THE POWER SECTION WAS REPLACED. THE TEARDOWN REPORT REVEALED THAT THE PROPELLER SHAFT HAS SEIZED AND THERE WAS NO OIL INDICATION ON THE DIPSTICK. THE CAUSE OF THE OVERHEATING DISTRESS TO THE PLANET GEAR `Y` OCCURRED FROM LACK OF LUBRICATION.

Part: AILERON — MISRIGGED (WING) · airframe 23,386 hrs · 35,488 cycles

AFTER LANDING IN PANAMA CITY, FLORIDA ON FLIGHT 5466, THE CREW REPORTED THAT THE AILERON WAS RIGGED IMPROPERLY.MAINTENANCE IN PANAMA CITY FLORIDA, REINSTALLED THE CABLE DRUM AND THE CABLE TENSION. THE AIRCRAFT WAS THEN TEST FLOWN WITH SATISFACTORY RESULTS. NO PARTS WERE USED.

Part: CONTROL CABLE — IMPROPER (AILERON TAB)

FLT 5466 - AFTER LANDING IN PFN, CREW REPORTED AILERON TRIM WAS IMPROPERLY RIGGED. MAINTENANCE INSPECTED AND FOUND AILERON TRIM CABLE IMPROPERLY INSTALLED. CABLE WAS CORRECTLY INSTALLED AND RIGGED. OPERATIONAL CHECK WAS NORMAL. AIRCRAFT RETURNED TO SERVICE WITH NO FURTHER INCIDENT. (M)

Part: LOCK — DIRTY (AIRSTAIR DOOR)

FLT 5972 - PIT-DUJ - PRIOR TO DEPARTURE, THE CREW REPORTED THE CABIN DOOR ANNUNCIATOR LIGHT EXTINGUISHED PRIOR TO LOCKING THE DOOR. MAINTENANCE CLEANED AND LUBED THE SHAFT DOOR LOCK, OPS CHECK GOOD. THE AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: HOSE — LEAKING (RT OIL COOLER)

FLT 4441 - AFTER TAKEOFF OF TRAINING FLIGHT, CREW NOTICED THE MASTER WARNING FLASHING THEN NOTICED THE OIL PRESSURE LOW ANNUNCIATOR ILLUMINATED. THE ENGINE WAS SECURED AND THE CREW DECLARED AN EMERGENCY. AIRCRAFT RETURNED TO THE FIELD WITHOUT INCIDENT. MAINTENANCE REPLACED THE RIGHT ENGINE OIL COOLER RIGHT INLET LINE. AIRCRAFT WAS RETURNED TO SERVICE. (X)

Part: SEAL — FAILED (AIRSTAIR DOOR)

FLT 5288 - PBI-TLH - AT APPROXIMATELY 20,000 FEET, THE CREW HEAR A SHORT BURST FOLLOWED BY IMMEDIATE DECOMPRESSION. THE CREW DECLARED AN EMERGENCY AND EXECUTED A DESCENT TO 10,000 FEET. DURING THE DESCENT THE CREW COULD NOT GET OXYGEN TO FLOW TO THE MASKS UNTIL REACHING 10,000 FT. AIRCRAFT RETURNED TO THE FIELD. MAINTENANCE FOUND THE PASSENGER DOOR SEAL FROM THE TOP TO APPROXIMATELY HALF WAY DOWN HAD FAILED. MAINTENANCE REPLACED THE DOOR SEAL. THE OXYGEN SYSTEM WAS TROUBLESHOT, NO DISCREPANCIES WERE NOTED. OPS CHECK GOOD. AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: WIRE — CHAFED (LANDING GEAR)

LIT/MSY - FLT 5445 - ON APPROACH TO MSY, PILOT SELECTED GEAR DOWN AND THE LANDING GEAR RELAY CIRCUIT BREAKER TRIPPED AND WOULD NOT RESET. THE CREW DECLARED AN EMERGENCY. THE GEAR WAS MANUALLY EXTENDED AND THE AIRCRAFT LANDED UNEVENTFULLY. THE AIRCRAFT WAS FERRIED TO JAX WHERE A CHAFED WIRE RUNNING BETWEEN THE LANDING GEAR HANDLE AND THE DOWN SELECTOR VALVE WAS FOUND AND REPAIRED. OPS CHECK GOOD, AIRCRAFT RETURNED TO SERVICE. (X)

Part: HINGE — CORRODED (LT-RT ELEVATOR)

DURING A LIGHTNING STRIKE INSPECTION, THE LEFT AND RIGHT OUTBOARD ELEVATOR HINGE ASSEMBLIES WERE FOUND TO HAVE HEAVY CORROSION (EXFOLIATION). REMOVED AND REPLACED THE LEFT AND RIGHT HINGE ASSEMBLIES. (X)

Part: BRAKE CYLINDER — WORN (RUDDER PEDAL)

HGR/RDG - FLT 5356 - PILOT'S LEFT BRAKE LOSES PRESSURE WHEN RIGHT RUDDER PEDAL IS DEPRESSED. MAINTENANCE REMOVED AND REPLACED THE LEFT BRAKE CYLINDER, OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE. (X)

Part: SUN GEAR — DEFECTIVE (POWER SECTION)

ALTHOUGH ALL INDICATIONS POINT TO AN ELECTRICAL DISCHARGE, THE POSSIBILITY OF A SUN GEAR FAILURE IS NOT BEING RULED OUT. THE NR 6 BEARING AND THE SUN GEAR WILL BE SHIPPED FOR FURTEHR INVESTIGATION.