N1361G

Part: SPAR CAP — CORRODED (LT WING) · airframe 34,151 hrs · 31,598 cycles

CORROSION WAS DISCOVERED ON THE LT AFT LOWER OUTBOARD SPAR CAP WS 221.71 ON THE FORWARD SIDE OF THE CAP, INSIDE THE FUEL TANK, NEAR THE RADIUS. THE CORRODED AREA MEASURED .075 TALL, .243 IN WIDTH, AND .063 IN DEPTH. OUT OF LIMITS IAW MEB 95-11, R1, SECTION 3, THE SPAR CAP WAS REPLACED.

Part: FITTING — CORRODED (WING ATTACH) · airframe 33,927 hrs · 31,096 cycles

DURING A ROUTINE VISUAL INSPECTION OF THE WING ATTACH FITTINGS, CORROSION WAS DISCOVERED ON THE LEFT OUTBOARD FORWARD, AFT SIDE WING ATTACH FITTING. THE FITTING WAS REMOVED AND REPLACED WITH FACTORY NEW PARTS.

Part: EXHAUST VALVE — DAMAGED (NR 4 CYLINDER) · airframe 32,985 hrs

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

Part: EXHAUST VALVE — DAMAGED (NR 6 CYLINDER) · airframe 32,690 hrs

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

Part: BEAM — CRACKED (LT NACELLE) · airframe 32,068 hrs

THE LT NACELLE OTBD ENG BEAM WAS FOUND TO BE CRACKED JUST FWD OF AFT ENG MOUNT, TRANSVERSE TO LENGTH OF BEAM, ACROSS UPPER FACE OF BEAM, DURING NDT PRESCRIBED WITHIN MEL-54-01. REMOVE BEAM ASSEMBLY FROM NACELLE, PERFORM DETAILED VISUAL INSPECTION OF SURROUNDING STRUCTURE & INSTALL NEW BEAM ASSEMBLY. A SUPPLEMENT TO THIS SDR WILL BE SUBMITTED ILLUSTRATING RESULT OF X-RAY INSPECTION.

Part: BEAM — CRACKED (LT NACELLE) · airframe 32,068 hrs

THE LT NACELLE INBD ENG BEAM WAS FOUND TO BE CRACKED JUST FWD OF AFT ENG MOUNT, TRANSVERSE TO LENGTH OF BEAM, ACROSS UPPER FACE OF BEAM, DURING NDT PRESCRIBED WITHIN MEL-54-01. REMOVE BEAM ASSEMBLY FROM NACELLE, PERFORM DETAILED VISUAL INSPECTION OF SURROUNDING STRUCTURE & INSTALL NEW BEAM ASSEMBLY. A SUPPLEMENT TO THIS SDR WILL BE SUBMITTED ILLUSTRATING RESULT OF X-RAY INSPECTION.

Part: DOOR — UNSECURE (EMERGENCY EXIT) · airframe 31,989 hrs · 26,775 cycles

RIGHT SIDE EMER DOOR OPENED AT 1000 FT AFTER DEPARTURE. INSPECTED THE EMER EXIT DOOR SYS, SECURED THE EMER EXIT DOOR, SEALED & SEATED PROPERLY IN THE DOOR FRAME. NO FURTHER DEFECTS FOUND.

Part: BEAM — CRACKED (LT NACELLE) · airframe 31,607 hrs · 27,981 cycles

DURING ROUTINE INSPECTION, DAMAGE WAS NOTED AT LT NACELLE CROSSOVER BEAM INCLUDING A CRACK EXTENDING FROM OTBD EXHAUST HANGAR BRACKET HOLE LOCATIONS.

Part: BOLT — FAILED (RT ENGINE) · airframe 30,888 hrs

CREW REPORTED LOSING RT ENGINE MAP AT 9000 FEET AND NOTICED OIL LEAKING FROM RT ENGINE COWL. THE RT PROP WAS FEATHERED AND RT ENGINE SHUTDOWN AND THE ACFT RETURNED TO DEPARTURE AIRFIELD. MX INSPECTED AND FOUND THE CRANKSHAFT GEAR WAS SEPARATED FROM THE CRANKSHAFT. A REPLACEMENT ENGINE WAS INSTALLED. THE ORIGINAL ENGINE WAS SENT FOR DISASSEMBLE AND EVALUATION. THE ENGINE FACILITY VERIFIED FAILURE OF THE CRANKSHAFT BOLTS.

Part: DRAG BRACE — CRACKED (NLG) · airframe 30,413 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: BEAM — CRACKED (RT NACELLE) · airframe 30,416 hrs

DURING A SCHEDULED MX EVENT, THE RT ENGINE ASSY WAS REMOVED FOR A SCHEDULED TIME CHANGE. UPON REMOVAL, A CRACK WAS DISCOVERED AT THE RT NACELLE CROSSOVER BEAM IN THE AREA OF TURBOCHARGER BRACKET HOLE LOCATIONS. LOCATION OF CRACK RELATIVE TO RT NACELLE CROSSOVER BEAM 5654104-12. C/A WILL BE TO REMOVE RT NACELLE CROSSOVER BEAM, PERFORM A DETAILED VISUAL INSPECTION OF SURROUNDING STRUCTURE, AND REASSEMBLE WITH NEW OEM PARTS.

Part: BEAM — CORRODED (RT NACELLE) · airframe 30,416 hrs

SEVERE CORROSION WAS DISCOVERED BETWEEN RT NACELLE OTBD ENGINE BEAM AND LOWER NACELLE SKIN. RIGHT NACELLE OTBD BEAM HAT CHANNEL WHICH IS SANDWICHED BETWEEN BEAM AND LOWER NACELLE SKIN, IS SEVERELY CORRODED. REMOVED RT NACELLE OTBD ENGINE BEAM , PERFORMED DETAILED VISUAL INSPECTION, AND REASSEMBLED WITH NEW PARTS.

Part: SPAR — DAMAGED · airframe 30,413 hrs

DURING A REGULARLY SCHEDULED MX, DAMAGE WAS DISCOVERED TO THE AFT CARRY THROUGH SPAR, CENTER SECTION UPPER CAP AND CORRESPONDING WEB FLANGES. THIS DAMAGED APPEARED TO BE CAUSED BY PREVIOUS REPAIR ATTEMPTS INCLUDING MISDRILLS TO SPAR CAP AND CRACKS IN WEB FLANGES. A REPAIR DEFINITION WAS PROVIDED AND REPAIRS ARE UNDERWAY IAW THAT DEFINITION.

Part: HSI — INOPERATIVE (ZONE 200) · airframe 30,339 hrs

SHORTLY AFTER TAKEOFF, THE PILOT REPORTED THAT THEIR HSI WAS INOPERATIVE WHICH WAS ACCOMPANIED BY A SMOKE ODOR IN THE COCKPIT AND ELECTED TO RETURN FOR A LANDING. UPON INSPECTION AND CONFIRMATION BY MX, THE HSI WAS SUBSEQUENTLY REPLACED AND THE ACFT WAS RELEASED FOR SERVICE.

Part: HSI — FAILED (ZONE 200) · airframe 29,534 hrs

PPILOT REPORTED THAT DURING CLIMB OUT AT ABOUT 500 FEET, HSI FAILED AND FROZE ON THE RUNWAY HEADING. PILOT DECLARED AN EMERGENCY AND RETURNED TO LAND. MX R & R HSI.

Part: DRAG BRACE — CRACKED (NLG) · airframe 28,978 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: MASTER SWITCH — UNSERVICEABLE (COCKPIT) · airframe 27,959 hrs

PREFLIGHT, CREW REPORTED AVIONICS MASTER SWITCH INOPERATIVE. MX R & R CIRCUIT BREAKER SWITCH. SYS CHECKS OK. ACFT RELEASED BACK TO SERVICE.

Part: MASTER SWITCH — FAILED (AVIONICS) · airframe 26,988 hrs

CREW REPORTED BURNING ODOR IN COCKPIT. MAINTENANCE REMOVED AND REPLACED AVIONICS MASTER SWITCH.

Part: CIRCUIT BREAKER — DEFECTIVE (AVIONICS)

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

Part: CIRCUIT BREAKER — DEFECTIVE · airframe 24,098 hrs

CREW REPORTED AVIONICS MASTER SWITCH INOP, MX CHANGED CIRCUIT BREAKER SWITCH MFG DATE CODE 0442.

Part: TUBE — RUSTED (INSIDE TUBE)

REMOVED RIGHT ELEVATOR FROM AIRCRAFT TO REPLACE HINGE BEARINGS. CLEANED INSIDE TUBE AND NOTICED 3 RUSTED HOLES THROUGH TUBE. REPLACED TUBE WITH NEW AND LUBED INSIDE TUBE. (X)