N317NA

Part: UNKNOWN — MALFUNCTIONED (PROPELLER) · airframe 11,358 hrs · 22,683 cycles

AFTER TOUCHING DOWN, REVERSE WAS SELECTED. THE PROPELLER INITIALLY WENT INTO REVERSE NORMALLY, AFTER A FEW SECONDS THE PROPELLER THEN WENT TO FLAT PITCH, RESULTING IN LOSS OF REVERSE EFFECTIVENESS.

Part: RELAY — INOPERATIVE (MLG) · airframe 10,070 hrs

LANDING GEAR FAILED TO EXTEND. MANUALLY EXTENDED GEAR WITHOUT INCIDENT.

Part: RELAY — FAULTY (ZONE 100) · corrosion level 2 · airframe 9,232 hrs · 18,364 cycles

UPON APPROACH TO LANDING, THE ACFT BEGAN PITCHING UP WITH TRIM RUNAWAY CONDITION. AT THE SAME MOMENT THE TRIM BEGAN THE RUNAWAY CONDITION AN ELECTRONIC BUZZING NOISE WAS HEARD THROUGH THE PILOT'S HEADSET AND CONTINUED UNTIL THE STAB TRIM CIRCUIT BREAKER WAS PULLED TO DEACTIVATE THE STAB TRIM. ACFT WAS RE-TRIMMED USING THE ALT STAB TRIM AND THE MISSION WAS ABORTED AND ACFT RETURNED TO BASE. MX TROUBLESHOT THE SYS WITH THE ASSISTANCE FROM THE MFR AND IT WAS DETERMINED A FAILURE OF THE TRIM RELAY K22. RELAY WAS REPLACED WITH NO FURTHER FAULTS.

Part: ACM — NOISY (A/C SYSTEM) · airframe 4,234 hrs · 7,578 cycles

AIR CYCLE MACHINE IS MAKING UNUSUAL NOISES.

Part: DRIVE SHAFT — FAILED (NR 2 GENERATOR) · airframe 3,945 hrs · 7,216 cycles

NR 2 GENERATOR CAWS LIGHT ILLUMINATED DUE TO FAILURE OF NR 2 GENERATOR DRIVE SHAFT.

Part: PROBE — FAILED (AOA) · airframe 3,865 hrs · 7,060 cycles

RT AOA PROBE DOES NOT HEAT.

Part: SERVO — FLUCTUATES (SERVO YAW) · airframe 3,849 hrs · 7,024 cycles

RUDDER TRIM FLUCUATES IN FLIGHT.

Part: TIMER — FAILED (DE ICE SYSTEM) · airframe 3,775 hrs · 6,870 cycles

WING DE-ICE CAWS LIGHT ILLUMINATED IN FLIGHT.

Part: PUMP — FOD (FUEL SYS) · airframe 3,690 hrs · 6,569 cycles

FOD FOUND IN FUEL OUTLET FILTER. REMOVED AND REPLACED FUEL PUMP AND FUEL CONTROL.

Part: ROD CAP — SEPARATED (NOSE STEERING)

ON 100 HOUR INSPECTION THE ROD END BEARING ON THE NOSE GEAR STEERING ORING WAS FOUND TO BE MIGRATING OUT OF THE ROD END ASSEMBLY. IF ROD END WAS NOT REPLACED AND THE BEARING MIGRATED ALL THE WAY OUT OF THE ROD END THEN STEERING CONTROL WOULD BE LOST. THIS COULD BE POSSIBLY PREVENTED BY A SB FROM MFG, IMPLEMENTING A LARGE AREA WASHER ON THE BOTTOM OF THE ROD END OR AN EQUIVALENT FIX, THIS WOULD PREVENT THE BEARING FROM MIGRATING ALL THE WAY OUT OF THE ORING ROD END AND LOSING CONTROL OF NOSE WHEEL STEERING. THIS DISCREPANCY IS A RESULT OF NORMAL OPERATIONS, NOT A RESULT OF TOWING OR UNUSUAL OPERATIONS.

Part: ENGINE — MAKING METAL (NACELLE) · airframe 2,556 hrs · 4,471 cycles

ENGINE OIL ANALYSIS SHOWED A CLIMBING TREND IN THE MAGNESIUM AND IRON AMOUNTS. AFTER THREE SAMPLES, IN ACCORDANCE WITH THE MANUFACTURER, REMOVED AND ENGINE AND SENT TO MANUFACTURER FOR INSPECTION AND REPAIR.

Part: ENGINE — MAKING METAL (FRONT) · airframe 2,556 hrs · 4,471 cycles

ENGINE OIL ANALYSIS SHOWED A CLIMBING TREND IN THE MAGNESIUM AND IRON AMOUNTS. AFTER THREE SAMPLES, IN ACCORDANCE WITH THE MANUFACTURER, REMOVED ENGINE AND SENT TO MANUFACTURER FOR INSPECTION AND REPAIR.

Part: ENGINE — MAKING METAL (ENGINE) · airframe 2,556 hrs · 4,471 cycles

ENGINE OIL ANALYSIS SHOWED A CLIMBING TREND IN THE MAGNESIUM AND IRON AMOUNTS. AFTER THREE SAMPLES, IN ACCORDANCE WITH THE MANUFACTURER, REMOVED ENGINE AND SENT TO MANUFACTURER FOR INSPECTION AND REPAIR.

Part: A/C PACK — INOPERATIVE (ENGINE BAY) · airframe 2,567 hrs · 4,494 cycles

ECS SYSTEM WOULD NOT COOL BELOW AMBIENT TEMPERATURE NO MATTER WHAT POSITION THE CONTROL WAS IN, AUTO OR MANUAL. AFTER TROUBLESHOOTING SYSTEM AND TALKING TO TECH REPS, CHANGED COOLING TURBINE AND HEAT EXCHANGER. OPERATIONAL AND FUNCTIONAL CHECKED OK.

Part: A/C PACK — INOPERATIVE (ENGINE BAY) · airframe 2,567 hrs · 4,494 cycles

ECS SYSTEM BLOWS WARM AIR IN EITHER MANUAL OR AUTO MODES. REMOVED AND REPLACED REFRIGERATION PACK AND OPS CHECK OK.

Part: COOLER — CRACKED (NOSE)

FOUND OIL COOLER VANE CRACK WITH 3 POPPED RIVETS. REMOVED AND REPLACED OIL COOLER VANE IAW MANUFACTURER''''S SB 71-001 KIT. NO RECOMMENDATIONS TO PREVENT RECURRENCE SINCE SB 71-001 HAD PREVIOUSLY BEEN C/W. (X)