N229AM

Part: ECU — FAULTED (ENGINE) · airframe 3,513 hrs · 12,070 cycles

STARTING NORMAL, PRE-TAKE OFF CHECKS COMPLETED, TAKING OFF FROM BASE FADEC DEGRADE AND RESTART FAULT LIGHTS ILLUMINATED WITH TONE, ABORTED FLIGHT RETURNED TO BASE. NORMAL 2 MIN COOLDOWN BEFORE INITIATING A SHUTDWN, AS THROTTLE TURNED TO OFF POSITION FADEC FAILURE LIGHTS AND TONE ILLUMINATED.

Part: CARTRIDGE — FAILED (BOOST PUMP) · airframe 3,043 hrs · 10,183 cycles

EN ROUTE TO SCENE CALL, APPROXIMATELY 2 NM OUT (1 MIN), LEFT FUEL BOOST ILLUMINATED, CIRCUIT BREAKERS VERIFIED IN POSITION. SWITCHES VERIFIED IN ON POSITION. DETERMINED TO RETURN TO RTB. R & R BOOST PUMP CARTRIDGE TO FIX PROBLEM.

Part: TRANSMISSION — MAKING METAL (MAIN) · airframe 2,141 hrs · 6,784 cycles

ON THE WAY BACK TO BASE, A TRANSMISSION CHIP LIGHT ILLUMINATED ON THE CAUTION WARNING PANEL. REMOVED THE TRANSMISSION AND FREEWHEEL UNIT CHIP DETECTORS AND FOUND THE BOTTOM TRANSMISSION CHIP PLUG WITH METAL PARTICLES. THE MANUAL STATED IT WAS FLAKES AND CAUSED FOR THE TRANSMISSION TO BE REPAIRED OR REPLACED. FOLLOWING THE MANUFACTURER TECH PROCEDURES WERE PERFORMED, AND THE TRANSMISSION WAS DETERMINED TO BE UNSERVICEABLE. AIRCRAFT GROUNDED.

Part: UPLOCK — MALFUNCTIONED (NLG)

NOSE LANDING GEAR DID NOT EXTEND ON THE FIRST TRY AND AIRCRAFT WAS DAMAGED ON LANDING. THE NOSE GEAR DID NOT EXTEND. THE GEAR WAS NOT CYCLED AND THE EMERGENCY RELEASE WAS NOT PULLED. ALL LIGHT INDICATIONS WERE NORMAL WHEN GEAR RETRACT WAS PERFORMED. COULD NOT BE DUPLICATED. SUSPECT THE UPLOCK HOOK WAS STIFF.

Part: CONTROL BOX — MALFUNCTIONED (COCKPIT)

FAR - FLT 421 - AFTER A NOSE GEAR UP LANDING, IT WAS DISCOVERED THAT THE FLAP/GEAR WARNING HORN WAS MALFUNCTIONING. WITH THE GEAR SELECTOR DOWN (GEAR IN AN UNSAFE CONDITION), FLAPS DOWN, AND THE POWER LEVERS AT THE FLIGHT IDLE GATE, THE HORN SOUNDED. WHEN THE POWER LEVERS WERE ADVANCED FORWARD OF THE FLIGHT IDLE GATES, THE HORN STOPPED. IN NORMAL OPERATION, WITH THE FLAPS DOWN PAST 20 DEGREES, THE WARNING HORN MUST SOUND WHENEVER THE LANDING GEAR IS IN AN UNSAFE CONDITION, NO MATTER WHAT THE POSITION OF THE POWER LEVERS.

Part: ACTUATOR — FAILED (NLG)

MOT - FLT 421 - THE NOSE LANDING GEAR FAILED TO EXTEND WITH NORMAL EXTENTION. THE EMERGENCY GEAR SELECTOR WAS PULLED AND THE AIRCRAFT LANDED WITHOUT INCIDENT. THE LEFT NOSE GEAR ACTUATOR WAS RESEALED AND GEAR RETRACTS WERE NORMAL. (M)

Part: CONNECTOR — BROKEN WIRE (ENG WIRE HARNESS)

PIR - FLT NR 421 - ON FIRST START ATTEMPT, ENGINE WOULD NOT LIGHT OFF. AFTER A LONG PREHEAT, THE ENGINE STARTED. MAINTENANCE INVESTIGATED AND FOUND THE WIRE TO THE PRIMARIES ONLY SOLENOID CANNON PLUG BROKEN. AFTER REPLACING THE CANNON PLUG, THE ENGINE START CYCLE WAS SATISFACTORY. (M)

Part: FUEL CONTROL — OUT OF ADJUST (RT ENGINE)

MSP - FLT NR 475 - CREW REPORTED A POWER LEVER SPLIT ON TAKEOFF AND RETURNED. THE ENGINE RIGGING WAS INSPECTED AND MAX POWER WAS ADJUSTED. ENGINE POWER RUNS WERE PERFORMED AND ALL INDICATIONS WERE NORMAL. A TEST FLIGHT WAS PERFORMED AND THE AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: HYD LINE — CRACKED (COCKPIT)

PIR - FLT 421 - WHILE TAXIING, THE PILOT NOTICED FLUCTUATIONS OF THE HYDRAULIC PRESSURE INDICATOR. MAINTENANCE INSPECTION REVEALED A BROKEN LINE UNDER THE PILOTS SEAT GOING TO THE HAND PUMP PRESSURE RELEIF VALVE. THE LINE WAS REPAIRED, LEAK CHECKED AND THE AIRCRAFT RETURNED TO SERVICE. (M)

Part: STARTER/GEN — INOPERATIVE (RT ENGINE)

FAR - FLT 421 - RIGHT GENERATOR WOULD NOT COME ON LINE, THE VOLTMETER SHOWED NO RESET VOLTAGE. WHEN START ATTEMPT WAS MADE, THE STARTER FAILED TO ROTATE THE ENGINE. MAINTENANCE PERSONNEL REPLACED THE STARTER GENERATOR UNIT AND PERFORMED OPERATIONAL CHECKS. ALL CHECKS WERE SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE. (X)

Part: CONNECTOR — WATER LOGGED (LT NACELLE)

MSP - FLT 434 - ON TAKEOFF ROLL, THE LEFT OIL PRESSURE WARNING LIGHT ILLLUMINATED. THE CREW ABORTED THE TAKEOFF AND RETURNED TO THE HANGAR. MAINTENANCE INSPECTED THE SWITCH ASSY AND FOUND WATER IN THE CANNON PLUG. THE PLUG WAS DRIED OUT AND THE SYSTEM OPERATED NORMALLY. THE AIRCRAFT WAS RETURNED TO SERVICE. (X)

Part: PROP GOVERNOR — OUT OF ADJUST (RT ENGINE)

MSP - FLT 447 - RIGHT ENGINE WAS SURGING WHEN SET TO TAKEOFF POWER. AIRCRAFT RETURNED TO HANGER AND MAINTENANCE ADJUSTED THE PROP GOVERNOR LOW SETTING. RUN UP TEST WAS SATISFACTORY, AND AIRCRAFT WAS RETURNED TO SERVICE. (M)

Part: WIRE — CHAFED (LT FUEL PRESS)

RAP - FLT 475 - LEFT ENGINE FUEL PRESSURE CIRCUIT BREAKER POPPED IN FLIGHT. REMOVED AND REPLACED 1 AMP CIRCUIT BREAKER AND INSPECTED WIRING. REPAIRED WIRE NR 1401AA-22S FOR CHAFING AT GENERATOR RELAY AREA. GROUND RUN FOR CHECK OF SYSTEM CHECKED OKAY. ACFT RELEASED FOR FLIGHT. (Z)

Part: RELAY — FAILED (LT ENGINE)

RAP - FLT 476 - THE LT ENGINE WOULD NOT START, NO FUEL FLOW OR IGNITION. INSPECTED AND FOUND NR 2 START CONTROL RELAY OPEN. REMOVED AND REPLACED NR 2 START CONTROL RELAY, AND ENGINE START COMPLETED SUCCESSFULLY. ACFT RELEASED FOR FLIGHT. (W)

Part: TACH GENERATOR — LOOSE DRIVE (LT ENGINE)

CREW REPORTED LEFT ENGINE WOULD NOT START. NO RPM INDICATION, IGNITION, OR FUEL FLOW WAS OBSERVED ON START. INSPECTION OF THE SYSTEM FOUND THE TACH GENERATOR SHAFT DISENGAGED FROM THE WINDINGS. THE TACH GENERATOR WAS REPLACED AND THE AIRCRAFT WAS RELEASED.