N6875D

Part: FITTING — CRACKED (ZONE 400) · airframe 37,013 hrs · 39,947 cycles

WHILE PERFORMING A RECURRENT NDT INSPECTION (HFEC) TO SATISFY THE REQUIREMENTS OF TEXTRON 57-10-16, A CRACK WAS FOUND ON THE RIGHT HAND INBOARD NACELLE FITTING. THIS CRACK WAS FOUND ON THE OUTBOARD SIDE OF THE FITTING AND MEASURES .150 IN LENGTH. THIS CRACK IS CONSISTENT WITH OTHER'S THAT HAVE BEEN IDENTIFIED USING THE PROCEDURE. THIS FITTING WILL BE REPLACED WITH A FACTORY NEW PART.

Part: FITTING — CRACKED (RT NACELLE) · airframe 37,013 hrs · 39,947 cycles

DURING NDT INSPECTION AS NOTED IN SID 57-10-16, A CRACK WAS DISCOVERED ON THE RIGHT HAND INBOARD NACELLE FITTING. (P/N: 5292029-22) THIS CRACK MEASURES APPROXIMATELY .123 INCHES LONG ON THE OUTBOARD LOWER LEG OF THE FITTING, AND IS CONSISTENT WITH OTHER CRACKS FOUND USING THE LIGHTED BORESCOPE INSPECTION TECHNIQUE (TEXTRON MEL54-02R2) TO SATISFY REQUIREMENT OF AD2017-10-09. THIS FITTING WILL BE REPLACED USING NEW PARTS.

Part: ADAPTER — BROKEN (LT ENGINE) · airframe 36,195 hrs · 38,537 cycles

DURING INITIAL CLIMB APPROXIMATELY 3 MINUTES AFTER TAKEOFF THE CREW REPORTED A LT YAW MOVEMENT AND RECOGNIZED LT ENGINE MAP INDICATION DROPPING FOLLOWED BY A RAPIDLY DECREASING LT ENGINE OIL PRESSURE INDICATION. THE CREW ALSO REPORTED WHITE SMOKE STREAMING FROM LT NACELLE. THE ENGINE WAS INTENTIONALLY SHUT DOWN/SECURED AND THE AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. THE OUTBOARD PORTION (APPROXIMATELY 40%) OF THE LT ENGINE OIL FILTER ADAPTER FLANGE WAS FOUND TO BE BROKEN FREE OF OIL FILTER ADAPTER ASSEMBLY. THE DAMAGED ADAPTER ASSEMBLY WAS DETERMINED TO BE THE CAUSE OF THE OIL LEAK. THE ENGINE HAS BEEN REMOVED FOR REPAIR AND EVALUATION.

Part: FITTING — CRACKED (RT NACELLE) · airframe 33,164 hrs · 34,246 cycles

DURING A ROUTINE INSPECTION, CRACKS WERE IDENTIFIED AT RT OB NACELLE FITTING P/N 5292029-10. JUST FWD OF LWR FWD WING SPAR STRAP (REFERENCE MEB02-5 CURRENTLY AT REVISION 2 AND SERVICE KIT SK402-47A/B). THE MAJORITY OF THIS NACELLE FITTING IS NOT ACCESSIBLE FOR INSPECTION WITHOUT DISASSEMBLY OF SURROUNDING STRUCTURE. THE NDT REQUIREMENT OF SID 57-10-16 IS VAGUE IN REGARD TO AREA OF INSPECTION AND REQUIRED DISASSEMBLY. A SUPPLEMENT FURTHER ILLUSTRATING THIS DAMAGE AREA WILL BE SUBMITTED TO THE SDR DATABASE. STRUCTURES HAS ALSO BEEN NOTIFIED OF THIS DAMAGE AND REQUEST FOR ADDITIONAL CLARITY FOR THIS INSPECTION CRITERIA (SID57-10-16).

Part: FITTING — BROKEN (RT NACELLE) · airframe 33,164 hrs · 34,246 cycles

DURING A ROUTINE INSPECTION, A CRACK WAS IDENTIFIED AT RT IB ENGINE BEAM ASSEMBLY P/N 5654109-7 AND THE BEAM WAS REMOVED. AT REMOVAL, THE RT NACELLE IB FITTING P/N 5292029-12 WAS FOUND TO BE BROKEN IN HALF JUST FWD OF LWR FWD WING SPAR STRAP (REFERENCE MEB02-5 CURRENTLY AT REVISION 2 AND SERVICE KIT SK402-47A/B). THE MAJORITY OF THIS NACELLE FITTING IS NOT ACCESSIBLE FOR INSPECTION WITHOUT DISASSEMBLY OF SURROUNDING STRUCTURE. THE NDT REQUIREMENT OF SID 57-10-16 IS VAGUE IN REGARD TO AREA OF INSPECTION AND REQUIRED DISASSEMBLY. A SUPPLEMENT FURTHER ILLUSTRATING THIS DAMAGE AREA WILL BE SUBMITTED TO THE SDR DATABASE. STRUCTURES HAS ALSO BEEN NOTIFIED OF THIS DAMAGE AND REQUEST FOR ADDITIONAL CLARITY FOR THIS INSPECTION CRITERIA (SID57-10-16).

Part: EXHAUST VALVE — DAMAGED (NR 3 CYLINDER) · airframe 32,851 hrs

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

Part: EXHAUST VALVE — DAMAGED (NR 5 CYLINDER) · airframe 32,851 hrs

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

Part: WINDSHIELD — DEFECTIVE (COCKPIT) · airframe 32,255 hrs · 32,792 cycles

PILOT REPORTED WINDSHIELD HEAT WIRE CONNECTOR SMOKING AT WINDSHIELD. INSPECTED WINDSHIELD FOR RESISTANCE, FOUND TO BE OPEN. INSPECTED WINDSHIELD INVERTER, FOUND WATER PRESENT IN BAY, BUT NOT EXCESSIVE. VERIFIED NO POWER AT INVERTER AFTER CB PULLED. WINDSHIELD HEAT PLACED ON MEL UNTIL WINDSHIELD CAN BE REPLACED.

Part: GROUNDING STRAP — DEFECTIVE (WINDSHIELD) · airframe 32,254 hrs · 32,792 cycles

PILOT REPORTED WINDSHIELD HEAT ARCING INFLIGHT. R & R 3 WINDSHIELD GROUNDING STRAPS & OPERATIONALLY CHECKED GOOD.

Part: IGNITION UNIT — FAULTY (HEATER) · airframe 31,402 hrs · 31,385 cycles

PILOT REPORTED HEATER, NO HEAT BURNING SMELL IN FLIGHT. R & R THE HEATER IGNITION ASSEMBLY & OPERATIONS CHECKED WITH NO FURTHER DEFECTS NOTED.

Part: DRAG BRACE — CRACKED (NLG) · airframe 28,537 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 BEYOND LIMIT ALLOWABLE. THIS UNIT HAS BEEN SCRAPPED & A REPLACEMENT DRAG BRACE HAS BEEN INSTALLED IN ACFT.

Part: DRAG BRACE — CRACKED (NLG) · airframe 28,016 hrs

AT SCHEDULED INSPECTION, NLG DRAG BRACE, 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 BEYOND LIMIT ALLOWABLE OF MEB91-11R1. THIS UNIT HAS BEEN SCRAPPED & A REPLACEMENT DRAG BRACE HAS BEEN INSTALLED IN ACFT.

Part: DRAG BRACE — CRACKED (NLG) · airframe 26,984 hrs

AT SCHEDULED INSPECTION, NLG DRAG BRACE, 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 OF MEB91-11R1. THIS UNIT HAS BEEN REPAIRED IAW PROCEDURE OUTLINED IN MEB941-11R1 & RETURNED TO SERVICE.

Part: DRAG BRACE — CRACKED (NLG) · airframe 25,923 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: DISTRIBUTOR GEAR — UNSERVICEABLE (MAGNETO) · airframe 24,730 hrs

CREW REPORTED LT ENG MAGNETO CHECK GOOD ON RUN-UP PRIOR TO TAKEOFF. ON CLIMB OUT, LT ENG BEGAN RUNNING ROUGH. MX FOUND LT ENG RT MAGNETO INOPERATIVE. FURTHER INSP REVEALED DISTRIBUTOR DRIVE GEAR TEETH STRIPPED. MX REMOVED AND REPLACED AFFECTED MAGNETO. AS A PRECAUTIONARY MEASURE, THE RT MAGNETO AND SPARK PLUGS WERE REPLACED ALSO. GROUND RUN CHECKED GOOD, RELEASED BACK TO SERVICE.

Part: CIRCUIT BREAKER — UNSERVICEABLE (AVIONICS) · airframe 24,213 hrs

DURING ROUTINE SCHEDULED INSP, MX FOUND AVIONICS MASTER SWITCH WOULD SHUT OFF IN CTR POSITION. MX R & R CIRCUIT BREAKER SWITCH. SYS CHECKS OK.

Part: ADAPTER — FAILED (STARTER) · airframe 22,153 hrs

ON SHORT FINAL OF APPROACH PILOT NOTICED RT PROP WANDERING, LOOKED AT GAGES AND SAW RT OIL PRESSURE AT 0. PILOT SHUTDOWN ENGINE AND FEATHERED PROP. AIRCRAFT LANDED WITHOUT INCIDENT. UPON INITIAL INVESTIGATION FOUND OIL ON RT MLG DOOR. MX INSPECTED ENGINE AND FOUND TEETH TO STARTER ADAPTER AND ENGINE LARGE CRANK SHAFT GEAR MISSING. UPON TALKING TO PILOT GROUP FOUND SEVERAL INSTANCES OF STARTER KICK BACK. THIS FAILURE HAS BEEN REFERRED TO CONTINENTAL MOTORS FOR FURTHER INVESTIGATION OF CAUSE OF TEETH FAILURE.

Part: CIRCUIT BREAKER — DEFECTIVE (COCKPIT)

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

Part: BOLT — SHEARED (ENGINE)

PROPELLER FAILED TO TURN ON START. CRANKSHAFT LARGE ATTACH BOLTS SHEARED AND GEAR DISLODGED FROM CRANKSHAFT. ENGINE REMOVED AND REPLACED.

Part: BOLT — SHEARED (CRANKSHAFT)

LT PROPELLER FAILED TO TURN ON START, MAINTENANCE FOUND CRANKSHAFT LARGE ATTACH BOLTS SHEARED AND GEAR DISLODGED FROM CRANKSHAFT. MAINTENANCE REMOVED AND REPLACED THE ENGINE AND RETURNED THE AIRCRAFT TO SERVICE. (NE01200505271) (K)

Part: SPAR CAP — CORRODED (HORIZ STAB)

CORRODED SPAR CAP LOCATION, REAR SPAR ON HORIZONTAL STABILIZER, LOWER CAP. CORRODED AT LEFT, IB HINGE, 12 INCHES OB OF IB HINGE. (NE01200401202)

Part: MASTER SWITCH — FAILED (AVIONICS)

ON PREFLIGHT INSPECTION, AVIONICS MASTER SWITCH FAILED. MAINTENANCE REPLACED SWITCH AND RETURNED AIRCRAFT TO SERVICE.

Part: VALVE SPRING — BROKEN (ENGINE EXHAUST)

RIGHT ENGINE RUNNING ROUGH. FOUND 8 OF 12 VALVE SPRINGS BROKEN. REMOVED AND REPLACED ALL VALVE SPRINGS.

Part: VALVE SPRING — BROKEN (ENGINE INTAKE)

RIGHT ENGINE RUNNING ROUGH. FOUND 8 OF 12 VALVE SPRINGS BROKEN. REMOVED AND REPLACED ALL VALVE SPRINGS.