N247GS

Part: IGNITION UNIT — MELTED (HEATER) · airframe 31,753 hrs · 36,337 cycles

THE PILOT REPORTED THAT DURING A TURN ONTO THE RUNWAY THE AIRCRAFT THE WING DROPPED AND THE AIRCRAFT WOULD NOT ROLL. THE RIGHT TIRE WAS FOUND TO BE LEANING AGAINST THE STRUT. MAINTENANCE INSPECTED AND FOUND THE RIGHT AXLE TO BE CRACKED. REMOVED AND REPLACED THE RIGHT LOWER BARREL AND AXLE ASSEMBLY. NO FURTHER DEFECTS NOTED.

Part: STATIC LINE — DISTORTED (PITOT/STATIC SYS) · airframe 30,929 hrs · 35,201 cycles

PILOT REPORTED BURNING ODOR IN THE CABIN. UPON INSPECTION, MAINTENANCE FOUND STATIC LINE DISTORTED. TROUBLESHOT HEATER, AND FOUND OPERATIONAL. INSPECTED BAY AREA, HEATER DUCTS, COMBUSTION BLOWER, FUEL PUMP, THERMOSTAT, AIRFLOW SWITCH, HEATER SWITCH AND WIRING; NO FURTHER DEFECTS NOTED.

Part: STATIC LINE — OUT OF ADJUST (COCKPIT) · airframe 30,921 hrs · 35,192 cycles

PILOT REPORTED BURNING ODOR IN THE CABIN. UPON INSPECTION, MAINTENANCE FOUND STATIC LINE IN FRONT OF THE RIGHT FORWARD VENT. THE LINE WOULD BECOME PLIABLE WITH HEAT BUT WAS UNDAMAGED. REPOSITIONED LINE, INSPECTED BAY AND NO FURTHER DEFECTS NOTED.

Part: CYLINDER — LOW PRESSURE (NR 4) · airframe 30,837 hrs · 35,071 cycles

PILOT REPORTED ROUGH RUNNING RIGHT ENGINE ON CLIMB OUT. MAINTENANCE INSPECTED AND FOUND THE NUMBER 6 CYLINDER EXHAUST VALVE TO BE BROKEN AND THE NUMBER 4 CYLINDER DAMAGED. REPLACED BOTH CYLINDERS AND RELEASED TO SERVICE.

Part: CYLINDER — BROKEN (NR 6) · airframe 30,837 hrs · 35,071 cycles

PILOT REPORTED ROUGH RUNNING RIGHT ENGINE ON CLIMB OUT. MAINTENANCE INSPECTED AND FOUND THE NUMBER 6 CYLINDER EXHAUST VALVE TO BE BROKEN AND THE NUMBER 4 CYLINDER DAMAGED. REPLACED BOTH CYLINDERS AND RELEASED TO SERVICE.

Part: RIB — CRACKED (RT WING) · airframe 30,733 hrs · 34,930 cycles

DURING MAINTENANCE A CRACK WAS VISUALLY DISCOVERED ON THE RIGHT HAND CLOSEOUT RIB (P/N: 5122115-56) AT R.W.S. 106.79. THIS CRACK ORIGINATES FROM A HOLE IN THE FORWARD ROW OF FASTENERS COMMON TO THE AFT MAIN LANDING GEAR TRUNNION SUPPORT PLATE. THE CRACK TRAVELS FORWARD FROM THE HOLE APPROXIMATELY .903 INCHES. THIS RIB WILL BE REMOVED AND REPLACED USING NEW PARTS.

Part: EXHAUST VALVE — DAMAGED (NR 5 CYLINDER) · airframe 27,422 hrs

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.

Part: EXHAUST VALVE — DAMAGED (NR 6 CYLINDER) · airframe 27,422 hrs

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION; EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.

Part: EXHAUST VALVE — CRACKED (NR 3 CYLINDER) · airframe 27,176 hrs

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE CRACKED AND DISPLAYS EVIDENCE OF HEAT DAMAGE.

Part: EXHAUST VALVE — DAMAGED (NR 3 CYLINDER) · airframe 27,176 hrs

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE CRACKED AND DISPLAYS EVIDENCE OF HEAT DAMAGE.

Part: LIFTER — CORRODED (NR 4 CYLINDER) · airframe 27,123 hrs · 30,435 cycles

DURING OTHER UNSCHEDULED MAINTENANCE AND INSPECTION OF ENGINE HYDRAULIC LIFTER ON THE RIGHT ENGINE, THE NR 4 CYLINDER WAS FOUND PITTED. MAINTENANCE REPLACED THE LIFTER IAW MM 72-40-09

Part: EXHAUST VALVE — DAMAGED (NR 4 CYLINDER) · airframe 27,123 hrs

CYLINDER REMOVED DUE TO LOW COMPRESSION AT INSPECTION. EXHAUST VALVE DISPLAYS EVIDENCE OF HEAT DAMAGE.

Part: NUT — CRACKED (RT ENGINE) · airframe 25,536 hrs · 20,826 cycles

DURING INSPECTION FOUND ENGINE THROUGH BOLT NUT CRACKED ON THE NR 3 CYLINDER, CAUSING THROUGH BOLT TO BACK OUT.

Part: NUT — CRACKED (ENGINE) · airframe 25,536 hrs · 20,826 cycles

DURING INSPECTION FOUND ENG THROUGH BOLT NUT PN 652541 CRACKED ON THE NR 3 CYLINDER, CAUSING THROUGH BOLT TO BACK OUT.

Part: NUT — CRACKED (LT ENGINE) · airframe 25,536 hrs · 20,826 cycles

DURING INSPECTION FOUND ENG THROUGH BOLT NUT PN 652541 CRACKED ON THE NR 3 CYLINDER, CAUSING THE BOLT TO BACK OUT. NEW THROUGH BOLT NUTS ARE USED AT EACH OVERHAUL.

Part: AXLE — CRACKED (LT MLG) · airframe 3,268 hrs · 26,634 cycles

WHILE TURNING TO LINE UP WITH RUNWAY CENTERLINE, DIFFICULT TO TURN ACFT RT. ACFT ONLY TURNED TO THE LT. INSPECTION OF LT MLG FOUND WHEEL ASSEMBLY LEANED AGAINST LG. FURTHER INSPECTION FOUND LG AXLE TO BE CRACKED.

Part: DRAG BRACE — CRACKED (NLG) · airframe 20,557 hrs

AT SCHEDULED INSPECTION, NLG DRAG BRACE, OEM PN 5142002-5, WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT. THIS CRACK WAS FOUND TO BE WITHIN ALLOWABLE LIMIT. THIS UNIT HAS BEEN REPAIRED IAW PROCEDURE OUTLINED IN MEB941-11R1 & RETURNED TO SERVICE.

Part: DRAG BRACE — CRACKED (NLG) · airframe 20,380 hrs

AT SCHEDULED INSPECTION, NLG DRAG BRACE OEM PN 5142002-5 WAS FOUND TO BE CRACKED IN THE AREA OF NLG ACTUATOR ATTACH POINT. METHOD OF INSPECTION WAS DYE PENETRANT. THIS CRACK WAS FOUND TO BE WITHIN ALLOWABLE LIMIT. THIS UNIT HAS BEEN REPAIRED IAW PROCEDURE OUTLINED IN MEB941-11R1 & RETURNED TO SERVICE.

Part: RADIO — MALFUNCTIONED (COCKPIT) · airframe 19,788 hrs

ON DESCENT, CREW REPORTED BOTH COMMMUNICATION RADIOS FAILED TO TRANSMIT OR RECEIVE. EMERGENCY WAS DECLARED, LANDING WAS UNEVENTFUL. MX INSPECTED ACFT, ALL SYS CHECKED NORMAL. COULD NOT DUPLICATE COMMUNICATION FAILURE. ACFT RELEASED BACK TO SERVICE.

Part: BULKHEAD — CORRODED (BS 154.5) · airframe 17,027 hrs

BULKHEAD LOCATED ON THE RIGHT FUSELAGE WALL JUST AFT OF FIRST OFFICERS SIDE WINDOW AT FUSELAGE STATION 154.5 FOUND TO BE CORRODED BEYOND MANUFACTURERS LIMITS. REMOVED CORRODED AREA AND SPLICED IN NEW BULK HEAD.

Part: CIRCUIT BREAKER — DEFECTIVE (AVIONICS)

CREW REPORTED AVIONICS MASTER SWITCH INOP. MX CHANGED CIRCUIT BREAKER SWITCH.