N117AX

Part: HOUSING — ERODED (SCAV PUMP) · airframe 52,944 hrs · 52,194 cycles

PILOT REPORTED OIL LEAK ON #1 ENGINE AFTER FLIGHT - MAINTENANCE LOCATED LEAK AT #1 ENGINE SCAVENGE PUMP HOUSING AND REPLACED SAME.

Part: BELLCRANK — CRACKED (ZONE 200) · airframe 51,358 hrs · 51,070 cycles

WHILE PERFORMING A COMPANY FLEET CAMPAIGN DISCOVERED FORWARD ELEVATOR BELLCRANK CRACKED WEB.

Part: CIRCUIT BREAKER — FAILED (TIME DELAY) · airframe 45,188 hrs · 46,670 cycles

PILOT REPORTED- LANDING GEAR WOULD NOT RETRACT. MAINTENANCE- MECHANIC INSPECTED LANDING GEAR AND INSTALLED LANDING GEAR LOCKS FOR FERRY FLIGHT TO HOME BASE. CLEANED PCB GROUNDS, OHM CHECKED LANDING GEAR CONTROL AND TIME DELAY CONTROL WIRING, NO DEFECTS. REPLACED CIRCUIT BREAKER 12 FOR TIME DELAY PCB. FUNCTIONAL CHECK OF LANDING GEAR SUCCESSFUL.

Part: BOLT — FAILED (MLG TORQUE KNEE) · airframe 40,730 hrs · 43,393 cycles

DURING TAXI OUT FOR DEPARTURE, MADE A 180 DEGREE TURN AT THE TAKEOFF END OF THE RUNWAY. TURNED TO THE LEFT USING NOSE STEERING, DIFFERENTIAL POWER AS WELL AS THE BRAKE TO GET THE NOSE TO CASTER FURTHER AROUND. TRYING TO STRAIGHTEN OUT THE AIRPLANE WAS VERY DIFFICULT, FELT A BINDING IN THE NOSE, REQUIRED A LARGE AMOUNTS OF PRESSURE ON THE OPPOSITE RUDDER AS WELL AS OPPOSITE POWER TO GET THE AIRCRAFT TO STRAIGHTEN OUT. ONCE STRAIGHT, LINED UP FOR DEPARTURE. ADVANCE POWER LEVERS, ACCELERATING THROUGH 10 MAYBE 15 KNOTS THE AIRCRAFT STARTED TO SHAKE VIOLENTLY. IMMEDIATELY REJECTED THE TAKEOFF, REDUCED POWER TO IDLE AND APPLIED BRAKES. THE AIRCRAFT CONTINUED TO SHAKE UNTIL A SLOW WALKING PACE AT WHICH POINT EVERYTHING SMOOTHED OUT. TAXIED DOWN THE RUNWAY BACK TO THE RAMP. TRIED ACCELERATING ONCE AGAIN TO SEE IF THE SHAKING RETURNED WHICH IT DID AT THE SAME SPEEDS AS DESCRIBED THE FIRST TIME. TAXIED OFF THE RUNWAY AND ONTO THE RAMP. SHUT DOWN AND DEPLANED. LOOKED AT THE MAIN LANDING GEAR AND QUICKLY DETERMINED THE TORQUE KNEE HAD SEPARATED AND THE WHEEL ASSEMBLY WAS BACKWARDS. THE BOLT THAT HOLDS THE TORQUE KNEE TOGETHER HAD FAILED TO PREVENT THE LOWER HALF FROM SEPARATING FROM THE UPPER HALF. MAINTENANCE LATER CONFIRMED THAT TWO OF THREE LARGE WASHERS WERE INSTALLED INCORRECTLY AND CAUSE THE BOLT TO FAIL TO HOLD THE TWO PIECES TOGETHER. THE LANDING GEAR WAS REPLACED.

Part: EXHAUST DUCT — DISCONNECTED (RT ENGINE) · airframe 38,457 hrs · 41,613 cycles

PILOT REPORTED THAT THE RIGHT ENGINE FIRE LIGHT FLICKERS DURING TAXI. MAINTENANCE FOUND THAT THE RIGHT ENGINE INBOARD EXHAUST STACK TUBE WAS DISCONNECTED. MAINTENANCE RE-CONNECTED TUBE, OPERATIONAL CHECK SUCCESSFUL.

Part: BUSS BAR — BURNED (RT GENERATOR) · airframe 37,865 hrs · 41,115 cycles

RIGHT GENERATOR FAILED LIGHT, RIGHT GEN TIE OPEN LIGHT, SECONDARY PROBLEM NR 1 NAV/CO AND TRANSPONDER FAILED WITH NO TRANMITT ON NR 1 COM. FOUND BURNED INSULATION ON RT GEN BUSS BAR AND REPLACED RT STARTER GEN.

Part: MOTOR — BURNED OUT (BLOWER) · airframe 36,729 hrs · 40,187 cycles

BURNING/SMOKE ODOR COMING FROM FRESH AIR VENTS WHEN BLOWER MOTOR ON. MAINTENANCE REPLACED AFT VENT BLOWER DUE BAD MOTOR.

Part: KNOB — BROKEN (ALTIMETER) · airframe 36,441 hrs · 39,936 cycles

PILOT ALTIMETER ALTITUDE SELECTOR KNOB BROKEN, CAN'T SELECT ALTITUDE, BARO, IN COLLSMAN WINDOW. RETURNED TO DEPARTURE AIRPORT. REPLACED ALTIMETER.

Part: FLAP SYSTEM — FAILED (TE FLAPS) · airframe 36,235 hrs · 39,774 cycles

FLAPS WOULD NOT RETRACT FROM TAKEOFF TO UP. RETURNED TO DEPARTURE AIRPORT. UNEVENTFUL LANDING MADE FLAPS WORKED ON GROUND AFTER LANDING - MAINTENANCE VERIFIED FLAPS UP AND SECURE - DEFERRED. MAINTENANCE REPLACED FLAP MOTOR RELAY AFTER THE NEXT FLIGHT AND PROBLEM CONTINUED.

Part: DIMMER — SHORTED (COCKPIT) · airframe 35,918 hrs · 39,496 cycles

ROLLING FOR TAKEOFF, ENG INSTRUMENTS INOPERATIVE FOLLOWED BY ELEC BURNING SMELL & POPPED CB. LOCATED & REPLACED LIGHTING DIMMER CONTROL & POWER SUPPLY FOR INSTRUMENT LIGHTS. CONFIRMED INTERNAL FAILURE OF UNIT.

Part: OIL SYSTEM — OUT OF ADJUST (RT ENGINE) · airframe 35,787 hrs · 39,385 cycles

OIL PRESS ON RT ENG 141 PSI. CREW ELECTED TO RETURN TO AIRPORT OF DEPARTURE & UNEVENTFUL LANDING MADE. ADJUSTED OIL PRESS DOWN TO LIMIT.

Part: HEATING ELEMENT — OVERHEATED (PROP DE-ICE) · airframe 35,785 hrs · 39,384 cycles

LEFT PILOT SIDE, PROP DE-ICE GLOWING ORANGE WHEN IN USE. ACFT RETURNED TO AIRPORT OF DEPARTURE, DUE ICING CONDITIONS. UNEVENTFUL LANDING MADE. OBSERVED DAMAGED HEATING ELEMENT IN ON PROP BLADE DE-ICE BOOT. PROPELLER WAS REPLACED.

Part: WINDSHIELD — CRACKED (COCKPIT) · airframe 34,358 hrs · 38,169 cycles

FLIGHT CREW REPORTED THAT THE RT WINDSHIELD OUTER PANE CRACKED ON CLIMB OUT. THE CREW ELECTED TO RETURN. LANDING UNEVENTFUL. WINDSHIELD REPLACED.

Part: YOKE — SEIZED (NLG) · airframe 34,054 hrs · 37,938 cycles

ON DAILY INSPECTION MX FOUND THE NLG ACTUATOR YOKE TO DRAG BRACE BOLE SHEERED ON ONE SIDE OF THE BRACE. THE BOLT WAS FOUND TO BE SEIZED IN THE YOKE. DRAG BRACES & ACTUATOR YOKE WERE REPLACED. EXTRA CARE MUST BE USED TO VERIFY THAT LUBRICANT IS ACTUALLY FLOWING THROUGH THE YOKE WHEN SERVICING AS THERE ARE NO BUSHINGS OR CAVITY IN THE YOKE TO ACCEPT A VOLUME OF GREASE.

Part: CONTROL CABLE — BROKEN (TE FLAP) · airframe 31,859 hrs · 36,077 cycles

PILOT REPORTED FLAPS STUCK AT TAKEOFF POSITION. REPLACED FAILED FLAP DRIVE CABLE.