N158MC

Part: FIRE DETECTOR — FAILED (RT ENGINE) · airframe 25,210 hrs · 35,121 cycles

RT ENGINE FIRE WARNING LIGHT FLICKERED ON AND OFF DURING CLIMB. CREW RETURNED TO STATION. FAILED FIRE DETECTOR PROBE (CENTER CERAMIC INSULATOR LOOSE). REPLACED FIRE DETECTOR LOCATED BELOW THE OIL COOLER MOUNTED ON THE FIREWALL. (NM05200400110) (K)

Part: CONNECTOR — LOOSE (NR 2 FIRE LOOP)

NR 2 ENGINE FIRE WARNING LIGHT CAME ON DURING CLIMB, CREW DECLARED AN EMERGENCY AND RETURNED TO STATION. SUSPECT INDICATION PROBLEM. FOUND FIRE DETECTOR MOUNTED UNDER THE OIL COOLER AT THE FIRE WALL WITH A LOOSE CENTER CONNECTOR, ALLOWING THE CERAMIC CENTER TO SHIFT AND GO TO GROUND. TIGHTENED CENTER CONNECTOR AND INSTALLED SECOND NUT AS A SAFETY. SYSTEM OPS CHECKED GOOD. (M)

Part: ACM — FAILED (ACM BAY)

FCA - FLT 2582 - THE RIGHT BLEED AIR STARTED MAKING SMOKE IN THE CABIN. SUSPECTED RT ACM FAILED. INTERMIM REPORT INITIALLY DEFERRED RT ACM. FOUND RT ACM SEIZED. REPLACED ACM. TEARDOWN REPORT STATED THE BEARING WERE DRY, WADDING WAS DRY, BUT THE WICK WAS NORMAL. THE TEARDOWN REPORT STATED IT WAS SUSPECTED THAT EITHER THE INITIAL AND SUBSEQUENT SERVICING WAS NOT DONE CORRECTLY. A MEMO ON THIS SUBJECT WAS ISSUED. THIS ISSUE WITH PERSONNEL INVOLVED. (M)

Part: PANEL — MALFUNCTIONED (COCKPIT)

BIL - FLT 2551 - DURING CRUISE, THE COPILOT AVIONICS LIGHT PANEL GOT HOT AND STARTED TO SMOKE. LIGHTS WERE TURNED OFF AND SMOKE STOPPED. CREW LANDED AT DESTINATION WITH NO FURTHER PROBLEMS. OVERLAY LIGHTED PANEL WIRING PROBLEM. FOUND CARBON TRACING IN THE FIBERGLASS ON THE BACK OF THE PANEL BETWEEN THE NEGATIVE AND POSITIVE POWER STRIPS. THE POWER STRIPS WERE ALSO CORRODED. THE DAMAGE WAS ROUTED OUT, THEN AREA WAS REPAIRED. (M)

Part: ACM — FAILED (A/C BAY)

LIGHT SMOKE STARTED TO FILL THE CABIN, CREW SHUT OFF BOTH BLEEDS RETURNED TO STATION. INITIALLY DEFERRED THE ACM PER THE MEL, THEN REPLACED THE MEL. (M)

Part: FUEL LINE — BROKEN (LT ENGINE)

FLT 1314 - WDG - DURING CRUISE, THE CREW NOTICED THE TORQUE WAS DROPPING ON THE LEFT ENGINE. THEY MOVED THROTTLE FORWARD UNTIL IT REACHED THE STOPS. TORQUE CONTINUED TO DROP, ALONG WITH FUEL FLOW. OVER A 5 MINUTE PERIOD THE TORQUE WENT TO 0, OIL PRESSURE AND TEMP WERE STILL READING IN NORMAL RANGE. CREW SHUT DOWN AND FEATHERED ENGINE AFTER IT WENT TO 0 TORQUE. DIVERTED FROM PLANNED FLIGHT AND LANDED AT DIVERTED TO ALTERNATE AIRPORT. REPLACED BROKEN FUEL LINE, LEAK CHECK AND OPS CHECK GOOD. (M)

Part: GEAR — FAILED (RT ENGINE)

FLT 2551-BIL-ENG FAILURE OCCURRED IN DESCENT 21,500 FT MSL. PWR LEVERS SET AT 35 TO 40% TQ, AND PWR WASN''''T BEING ADJ AT TIME OF INCIDENT. AIRSPEED WAS APPROX 230 KTS. CREW FELT A SEVERE VIBRATION, RT ENG CHIP LIGHT CAME ON, CREW HEARD A LOUND BANG, AND FELT A/C YAW. CAPT VERIFIED RT ENG FAILURE, AND FEATHERED ENG. THE F/O SAW ENG SURROUNDED BY MIST, PROBABLY OIL BLOWN OUT OF GEARBOX. PROP STOPPED AFTER THE ENG FEATHERED. PROP COULD STILL BE TURNED BY HAND AFTER LANDING. PROP FLANGE LOCKED UP LATER WHEN ENG REMOVED AND PIECES INSIDE SHIFTED. BULL GEAR BROKE APART WHILE ENG RUNNING. REPLACED ENG, TEARDOWN OCCURED JAN 8/9.

Part: ACCUMULATOR — CRACKED (HYDRALIC SYSTEM)

HOT - FLT 1311 - AFTER NORMAL GEAR RETRACTION, CREW NOTICED HYDRAULIC PRESSURE LOW. LIGHTS CAME ON WHEN FLAPS UP WAS SELECTED. CREW CONFIRMED HYDRAULIC PRESSURE LOW ON HYD PRESSURE GAUGE. GEAR PUMPED DOWN AND ACFT RETURNED TO STATION WITH NO FURTHER INCIDENT. HYDRAULIC ACCUMULATOR HAD CRACKED ON HYD FLUID END CAUSING HYD FLUID LOSS. REMOVED AND REPLACED HYDRAULIC ACCUMULATOR, SERVICED AND OPS CHECKED SYSTEM. SYSTEM OPS CHECKED GOOD. (X)

Part: ACCUMULATOR — CRACKED (HYDRALIC SYSTEM)

HOT - FLT 1311 - AFTER NORMAL GEAR RETRACTION, CREW NOTICED HYDRAULIC PRESSURE LOW. LIGHTS CAME ON WHEN FLAPS UP WAS SELECTED. CREW CONFIRMED HYDRAULIC PRESSURE LOW ON HYDRAULIC PRESSURE GAUGE. GEAR WAS PUMPED DOWN AND AIRCRAFT RETURNED TO STATION WITH NO FURTHER INCIDENT. HYDRAULIC ACCUMULATOR HAD CRACKED ON HYDRAULIC FLUID END CAUSING HYDRAULIC FLUID LOSS. REMOVED AND REPLACED HYDRAULIC ACCUMULATOR, SERVICED AND OPS CHECKED SYSTEM. SYSTEM OPS CHECKED GOOD. (X)

Part: SKIN — CRACKED (PAX DOOR)

DURING TURNBACK INSPECTION IN MSP, COMPLETED REPAIR TO CABIN DOOR SKIN CRACK AT FORWARD BOTTOM CORNER. INSTALLED 5.25 INCH BY 3 INCH BY .040 INCH EXTERNAL REPAIR DOUBLER IAW FAC SRM 51-91-04 REPAIR NR 4. (M)

Part: RIB — CRACKED (WS 81)

DURING TURN-BACK INSPECTION, A CRACK WAS FOUND IN THE WING RIB LOWER FLANGE AT WS 81 WITHIN THE RT BATTERY BOX. REPAIR WAS COMPLETED BY INSTALLING A REPAIR DOUBLER IAW AEROTECH DESIGNS E.O. NR 01-96125. (X)

Part: RELAY — FAILED (RT BATTERY)

FLT 2931 - OUTBOUND OF MSP, BATTERY FAULT LIGHT AND BOTH RIGHT AND LEFT DISCONNECT LIGHTS ILLUMINATED. CREW FOLLOWED QUICK REFERENCE HANDBOOK AND COULD NOT RESET. AIR TURNBACK TO MSP. MAINTENANCE REPLACED RIGHT BATTERY FAULT TRANSFORMER AND THE SERIES PARALLEL RELAY. COMPLETED GROUND RUNS. OPS CHECK GOOD. REFERENCE MALA975447.

Part: FAULT TRANSFORMR — FAILED (RT BATTERY)

FLT 2931 - OUTBOUND OF MSP, BATTERY FAULT LIGHT AND BOTH RIGHT AND LEFT DISCONNECT LIGHTS ILLUMINATED. CREW FOLLOWED QUICK REFERENCE HANDBOOK AND COULD NOT RESET. AIR TURNBACK TO MSP. MAINTENANCE REPLACED RIGHT BATTERY FAULT TRANSFORMER AND THE SERIES PARALLEL RELAY. COMPLETED GROUND RUNS. OPS CHECK GOOD. (M)

Part: DOWNLOCK SWITCH — FAILED (NLG)

FLT 3366 - ON APPROACH TO CWA, CREW HAD TO CYCLE NOSE GEAR FOUR TIMES TO GET DOWN AND LOCKED GREEN LIGHT TO COME ON. AIRCRAFT LANED WITHOUT INCIDENT. MAINTENANCE REMOVED AND REPLACED NOSE LANDING GEAR DOWN LOCK SWITCHES. CYCLED GEAR NUMEROUS TIMES. ALL CHECKS ARE GOOD. (M)

Part: INTERCOSTAL — CRACKED (BS 145)

DURING A BLOCK INSPECTION IN MSP, MAINTENANCE FOUND A CRACK IN LEFT SIDE OF LOWER INTERCOSTAL FLANGE AT FUSELAGE STATION 145. COMPLETED REPAIR TO INTERCOSTAL IAW FAIRCHILD ARP 53-20-9409. (M)

Part: FRAME — CRACKED (BS 254)

DURING A BLOCK INSPECTION IN MSP, MAINTENANCE FOUND A CRACK IN THE RIGHT SIDE OF THE LOWER CONSTANT SECTION FRAME FLANGE AT FUSELAGE STATION 254. COMPLETED REPAIR OF CONSTANT SECTIO NIAW AERO TECH DESIGNS EA01-96136. (M)

Part: FRAME — CRACKED (BS 287)

DURING A BLOCK INSPECTION IN MSP, MAINTENANCE FOUND A CRACK IN THE RIGHT SIDE OF THE LOWER CONSTANT SECTION FRAME FLAGNE AT FUSELAGE STATION 287. COMPLETED REPAIR OF CONSTANT SECTION IAW AEROTECH DESIGN EA01-96136. (M)

Part: SKIN — DAMAGED (LT NACELLE)

DURING MAINTENANCE IN MSP, MAINTENANCE FOUND THE LEFT INBAORD NACELLE HAD SEVERAL RIVETS PULLING THROUGH. COMPLETED REPAIR TO LEFT INBOARD NACELLE SKIN JUST AHEAD OF THE INBOARD GEAR DOOR BY INSTALLING A REPAIR DOUBLER IAW FAC SRM 54-90-40 PAGES 35-37. (M)

Part: SWITCH — FAILED (NLG DOWNLOCK)

MSP - FLT 3082 - ON APPROACH, THE NOSE GEAR RED INTRANSIT LIGHT DID NOT ILLUMINATE DURING GEAR EXTENSION. ALL OTHER GEAR INDICATIONS WERE NORMAL. MAINTENANCE REPLACED BOTH NOSE LANDING GEAR DOWN POSITION SWITCHES. SYSTEM OPERATED SATISFACTORILY. (X)

Part: ANGLE — CRACKED (WING/NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE RIGHT UPPER INBOARD WING SKIN TO NACELLE ATTACH ANGLE. THEY STOP DRILLED THE CRACK AND INSTALLED A REPAIR DOUBLER IAW FAC ARP 54-20-9101. (M)

Part: WIRE — CHAFED (ENTRANCE LIGHTS)

MSP - DURING A MAINTENANCE GATE WALK-AROUND INSPECTION, MAINTENANCE PERSONNEL NOTED THE ENTRANCE LIGHTS WERE INOPERATIVE AND WOULD TRIP THE CIRCUIT BREAKER. MAINTENANCE FOUND AT TERMINAL END CONTACTING THE AIRCRAFT FRAME. THEY REPOSITIONED THE WIRE AND ADDED ANTI-CHAFE MATERIAL. ALL SYSTEMS OPERATED SATISFACTORILY. (X)

Part: SKIN — CRACKED (WING)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE RIGHT LOWER INBAORD WING SKIN TO NACELLE ATTACH ANGLE. THEY STOP DRILLED THE CRACK AND INSTALLED A REPAIR DOUBLER IAW FAC ARP 54-20-9101. (M)

Part: SKIN — DAMAGED (LT ELEVATOR)

DURNG A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED DAMAGE TO THE LEFT ELEVATOR LOWER SKIN. THEY REPAIRED THE DAMAGE IAW FAC SRM 51-90-04. (M)

Part: DOOR FRAME — DAMAGED (BS 159)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED CHAFFED DAMAGE ON THE FS 159 BELT FRAME WEB ABOVE THE PASSENGER DOOR CLOSER BELL CRANK. THEY INSTALLED A DOUBLER ON THE BACK SIDE OF FILLED THE CHAFE DAMAGE IAW FAC LAR 96-MALA-033. (M)

Part: FRAME — CRACKED (BS 212)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE LOWER BELT FRAME FLANGE RELIEF RADIUS AT FS 212. THEY STOP DRILLED THE CRACK AND INSTALLED A DOUBLER AND STIFFENER IAW FAC SRM 53-90-20. (M)

Part: ANGLE — CRACKED (WING/NACELLE)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE LEFT LOWER INBOARD WING SKIN TO NACELLE ATTACH ANGLE. THEY STOP DRILLED THE CRACK AND INSTALLED A REPAIR DOUBLER IAW FAC ARP 54-20-9101. (M)

Part: SEAT TRACK — CRACKED (RT COCKPIT)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE FIRST OFFICERS OUTBOARD SEAT TRACK CHANNEL. THEY INSTALLED A REPAIR DOUBLER IAW FAC ARP 53-10-9322. (M)

Part: FRAME — CRACKED (BS 144)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE PERSONNEL NOTED A CRACK IN THE RIGHT FUSELAGE LOWER BELT FRAME RELIEF RADIUS AT FS 144 AND BL 8. STOP DRILLED THE CRACK AND INSTALLED A DOUBLER AND STIFFENER IAW SRM 53-90-20. (M)

Part: VALVE — FAILED (RT ENGINE)

FLT NR 3226 - IN CRUISE FLIGHT, THE RIGHT INTAKE HEAT CIRCUIT BREAKER POPPED. THE AIRCRFT RETURNED TO MSP. MAINTENANCE REPLACED THE RIGHT ENGINE INTAKE HEAT ANTI-ICE SOLENOID VALVE. SYSTEM OPERATED SATISFACTORILY. (M)

Part: DOOR FRAME — CRACKED (FS 438.06)

DURING A SCHEDULED INSPECTION IN MSP, MAINTENANCE FOUND THE CARGO DOOR FUSELAGE FRAME, FS 438.060, TO BE CRACKED AT THE GAS SPRING ATTACH LUG HOLE. REPAIRS WERE COMPLETED BY INSTALLING REPAIR DOUBLERS IAW FAC ARP 53-20-9503 AND LAR 95-MALA-216. (M)

Part: TRANSPONDER — FAILED (COCKPIT)

DTW - FLT 3318 - AFTER DEPARTURE, CREW NOTED THE ALTITUDE ENCODING TRANSPONDER WAS INDICATING 3,300 FEET HIGHER THAN THEIR ACTUAL ALTITUDE. THE AIRCRAFT RETURNED TO DTW WITHOUT INCIDENT. MAINTENANCE PERSONNEL REPLACED THE TRANSPONDER CONTROL UNIT. ALL SYSTEMS OPERATED SATISFACTORILY. (X)

Part: STEERING — MALFUNCTIONED (NLG)

FLT 3018 - DURING THE TAKEOFF ROLL IN DTW, THE NOSE STEER FAIL LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO THE GATE. THE SYSTEM WAS DEFERRED PER MEL 32-1-C. (W)

Part: BRAKES — FAILED (RT MLG)

FLT 3378 - WHILE TAXIING AIRCRAFT, CREW REPORTED THE RIGHT BRAKE WAS WEAK. MAINTENANCE BLED THE RIGHT BRAKES. SYSTEM OPERATED SATISFACTORILY. (X)

Part: POTENTIOMETER — OUT OF NULL (NLG)

FLT 3409 - DURING THE TAKEOFF ROLL IN CVG, THE NOSE STEERING FAIL LIGHT ILLUMINATED AND THE AIRCRAFT VEERED SLIGHTLY TO THE LEFT. THE AIRCRAFT RETURNED TO THE GATE. NWS DEFERRED IN CVG. MAINTENANCE NOTED NWS POTENTIOMETER OUT OF NULL. MAINTENANCE NULLED THE POTENTIOMETER. OPS CHECKED GOOD IAW FAC MM. (W)

Part: SWITCH — LACK OF LUBE (LT MLG)

FLT 3377 - ON APPROACH TO DTW, THE LEFT GEAR DOWN LIGHT DIDN'T ILLUMINATE AFTER GEAR EXTENSION. THE CREW CYCLED THE GEAR AND RECEIVED A NORMAL INDICATION. MAINTENANCE CLEANED AND LUBED THE GEAR DOWN SWITCH. SYSTEM OPERATED SATISFACTORILY. (W)

Part: SWITCH — OUT OF ADJUST (CARGO DOOR)

MSP - FLT 3292 - IN CRUISE FLGIHT, CARGO DOOR WARNING AND FO'S SIDE PANEL LIGHT ILLUMINATED. THE AIRCRAFT RETURNED TO MSP. MAINTENANCE ADJUSTED LOWER AFT WARNING SWITCH. SYSTEM OPERATED SATISFACTORILY. (X)

Part: BELT FRAME — CRACKED (FS 145)

DURING SCHEDULED INSPECTION, MAINTENANCE FOUND RT LOWER BELT FRAME, PN 27-22093-146, AT FS 145, CRACKED AT THE UPPER OUTBOARD RELIEF RADIUS. REPAIRS COMPLETED IAW FAIRCHILD ARP 53-20-9029 AND THE SRM. (X)

Part: INTERCOSTAL — CRACKED (FS 174)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND RT LOWER INTERCOSTAL, PN 27-22093-106, AT FS 174, CRACKED. REPAIRS COMPLETED TO THE RT INTERCOSTAL IAW FAC SRM. (X)

Part: INTERCOSTAL — CRACKED (FS 133)

MSP - DURING SCHEUDLED INSPECTION, MAINTENANCE FOUND RT INTERCOSTAL CRACKED AT FS 133 AT THE RELIEF RADIUS CUT-OUT. REPAIRS COMPLETED IAW FAC ARP 53-20-9148 AND SRM. (X)

Part: SEAT TRACK — CRACKED (FS 107.06)

MSP - DURING A SCHEDULED INSPECTION, MAINTENANCE FOUND PILOT'S SEAT TRACK ATTACHMENT NUT PLATES ON FS 107.060 CRACKED. A REPAIR ANGLE DOUBLER WAS ATTACHED TO THE FRAME, PN 27-21052-035 IAW FAIRCHILD ARP 53-10-8913, REVISION A AND THE SRM (X)

Part: BRACKET — CRACKED (COCKPIT)

MSP - DURING A SCHEDULED INSPECTION, MAINTENANCE FOUND FORWARD, OUTBOARD PILOT'S SEAT TRACK SUPPORT BRACKET CRACKED AT THE TRACK ATTACHMENT NUT PLATES. REPAIRS COMPLETED TO THE BRACKET, PN 27-25006-001, BY INSTALLING A DOUBLER IAW FAIRCHILD ARP 53-10-9322 AND THE SRM. (X)

Part: INTERCOSTAL — CRACKED (FS 212)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND LT INTERCOSTAL, PN 27-22104-031, AT FS 212, CRACKED AT THE CORNER RELIEF RADIUS. REPAIRS COMPLETED IAW FAIRCHILD SRM. (X)

Part: BELT FRAME — CRACKED (FS 133)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND RT LOWER BELT FRAME, PN 27-22125-021, CRACKED AT THE UPPER OUTBOARD RELIEF RADIUS. REPAIRS COMPLETED AT FS 133 IAW FAIRCHILD ARP 53-20-9029 AND THE SRM. (X)

Part: INTERCOSTAL — CRACKED (FS 174)

MSP - DURING A SCHEDULED INSPECTION, MAINTENANCE FOUND LT LOWER INTERCOSTAL, PN 27-22093-107, AT FS 174, CRACKED AT THE RELIEF RADIUS. REPAIRS COMPLETED TO THE LT LOWER INTERCOSTAL AT FS 174 IAW FAIRCHILD ARP 53-20-9148 AND SRM. (X)

Part: DOUBLER — WORN (WS 27.103)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND LT FLAP WALKING BEAM ROLLER BEARING DOUBLER AT STA 27.103, PN 27-31141-001, WORN. REPAIRS COMPLETED THROUGH A PART-FOR-PART REPLACEMENT OF THE ROLLER DOUBLER IAW FAC SRM. (X)

Part: BELT FRAME — CRACKED (FS 212)

MSO - DURING SCHEDULED INSPECTION - MAINTENANCE FOUND LOWER BELT FRAME, PN 27-22104-035, AT FS 212, CRACKED AT THE UPPER, OUTBOARD RELIEF RADIUS. REPAIRS COMPLETED BY INSTALLING A REPAIR DOUBLER IAW FAIRCHILD ARP 53-20-9029 AND THE SRM. (X)

Part: SEAT TRACK — CRACKED (FS 107.06)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND COPILOT'S SEAT TRACK ATTACHMENT NUT PLATES ON FS 107.060 CRACKED. REPAIRS WERE COMPLETED TO THE FRAME, PN 27-21052-035, IAW FAIRCHILD ARP 53-10-8913, REVISION A AND THE SRM. (X)

Part: BRACKET — CRACKED (COCKPIT)

MSP - DURING A SCHEDULED INSPECTION, MAINTENANCE FOUND FORWARD, INBOARD PILOT'S SIDE SEAT TRACK SUPPORT BRACKET, PN 27-25008-001, CRACKED AT THE TRACK ATTACHMENT NUT PLATES. REPAIRS WERE COMPLETED TO THE SEAT TRACK BY INSTALLING A REPAIR DOUBLER IAW FAIRCHILD ARP 53-10-9322 AND SRM. (X)

Part: SUPPORT DOUBLER — WORN (LT TE FLAP)

MSP - DURING SCHEDULED INSPECTION, MAINTENANCE FOUND LT FLAP WALKING BEAM ROLLER BEARING SUPPORT DOUBLER, PN 27-31141-001, WORN. REPAIRS COMPLETED THROUGH A PART-FOR-PART REPLACEMENT IAW FAIRCHILD SRM. (X)