N670MC

Part: BULB — INOPERATIVE (EMERGENCY LIGHT) · airframe 1,378 hrs · 1,206 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROW 4CD OF THE CABIN AND IN THE TAIL COMPARTMENT WERE INOPERATIVE. MX REPLACED THE LIGHTBULBS AS REQUIRED AND FUNCTIONALLY CHECKED EACH LOCATION.

Part: FRAME — CRACKED (FUSELAGE) · airframe 67,371 hrs · 64,930 cycles

DURING L-CHECK FOUND CRACK IN AFT ACCESSORY COMPARTMENT CANTED FRAME AT BS 1245 L3R. REPAIRED PER SRM 51-30-5.

Part: FLOOR SUPPORT — DAMAGED (FUSELAGE) · airframe 67,371 hrs · 64,930 cycles

DURING L-CHECK FOUND DAMAGE TO MAIN CABIN FLOOR SUPPORT FOR PANEL 40. REPAIRED PER DWG 5914617, SRM 51-10-2, SRM 51-30-2, SRM 51-10-3 & SRM 51-30-01.

Part: FLOOR SUPPORT — CHAFED (FUSELAGE) · airframe 67,371 hrs · 64,930 cycles

DURING L-CHECK FOUND MAIN CABIN FLOOR SUPPORT CHAFED AT BS 465 LBL 1- LBL 24. REPAIRED PER SRM 53-01 FIGURE 1 SHEET 3, SRM 53-05 FIGURE 20 PAGE 139.

Part: SUPPORT — CRACKED (CARGO DOOR) · airframe 67,371 hrs · 64,930 cycles

DURING L-CHECK FOUND FORWARD CARGO DOOR AFT LOWER STOP FITTING SUPPORT CRACKED AT UPPER FASTENER. REPAIRED PER SRM 51-30-5 & SRM 51-30-1.

Part: UPLOCK ACTUATOR — LEAKING (RT MLG) · airframe 66,711 hrs · 64,343 cycles

ON DEPARTURE UPLATCH CHECK UNSATISFACTORY. LEFT AND RIGHT MLG UNSAFE LIGHTS AND GEAR DOOR OPEN LIGHT ILLUMINATED. FOLLOWED QRH, WITH GEAR HANDLE DOWN, MLG INDICATED DOWN AND LOCKED, BUT GEAR DOOR LIGHT REMAINED ILLUMINATED. UNDER DIRECTION OF MCC RETURNED TO DTW. GEAR DOOR OPEN LIGHT EXTINGUISHED BELOW 1K AGL. NO FAULT HISTORY ON PSEU. MAINTENANCE JACKED AND SWUNG GEAR SEVERAL TIMES AND COULD NOT DUPLICATE ISSUE. FOUND THE RIGHT MLG UPLATCH ASSEMBLY WAS LEAKING. BOTH MLG UPLATCH FAILED THE BUSHING CHECK. BOTH MLG UPLATCH ASSEMBLIES WERE REPLACED (RIGHT TSO 5,649 CYCLES, LEFT TSO 8,233 CYCLES). MAINTENANCE ALSO FOUND THE RIGHT I/B MLG DOOR OUT OF ADJUSTMENT, TWO SHIMS WERE REMOVED.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 66,633 hrs · 64,274 cycles

ON FLIGHT CHECK, MX FOUND EMERGENCY LIGHTS IN COCKPIT AND FWD OF F/A SEAT. MX REPLACED BATTERY PACK AT B5-23. OPS CHECK OF LIGHTS NOW CHECK GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 66,587 hrs · 64,236 cycles

DURING LINE CHECK, MX FOUND EMERGENCY EXIT LIGHT AT ENTRY DOOR INOP. MX REPLACED BATTERY PACK. OPS CHECK OF LIGHT NOW CHECK GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 65,893 hrs · 63,642 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FWD SECTION OF THE CABIN HAD FAILED. MX REPLACED THE BATTERIES IN THE POWER SUPPLY AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 65,893 hrs · 63,642 cycles

DURING LINE CHECK, MX FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE CATWALK IN THE TAIL COMPARTMENT WAS INOPERATIVE. MX REPLACED THE BATTERIES IN THE POWER SUPPLY AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · corrosion level 2 · airframe 55,536 hrs · 54,332 cycles

DURING H-CHECK FOUND CORROSION ON Z-ANGLE FLOOR SUPPORT FROM BS 160 TO BS 200 LBL 55. REPAIRED PER EA 98-199572.

Part: BULKHEAD — CORRODED (FUSELAGE) · corrosion level 2 · airframe 55,536 hrs · 54,332 cycles

DURING H-CHECK FOUND CORROSION ON AFT PRESSURE BULKHEAD WEB AT Z=6.0 NEAR L18R. REPAIRED IAW EA 98-199571.

Part: INTERCOSTAL — CRACKED (FUSELAGE) · airframe 55,536 hrs · 54,332 cycles

DURING H-CHECK FOUND CRACK IN INTERCOSTAL AT BS 148 L10R. REPAIRED PER EA 98-199166.

Part: INDICATOR — MALFUNCTIONED (COCKPIT) · airframe 54,925 hrs · 53,789 cycles

EN ROUTE CAPTAINS HSI INOPERATIVE. ALL FOUR RED BOW TIE LIGHTS ILLUMINATED. FLIGHT DIVERTED AND LANDED WITHOUT INCIDENT. REPLACED CAPTAINS COURSE INDICATOR. REPLACED NAV/INST MONITOR UNIT AND REPLACED AMPS. SYSTEM OPERATION CHECKS GOOD.

Part: CONTROL VALVE — FAULTY (MLG) · airframe 53,469 hrs · 52,458 cycles

MAIN LANDING GEAR DOORS WERE DAMAGED DURING LANDING AND TAXIING. GEAR DOOR OPEN LIGHT DID NOT ILLUMINATE UNTIL THE AIRCRAFT WAS ON THE GROUND. FLIGHT CREW STOPPED ON THE TAXIWAY UNTIL A GROUND CREW COULD INSPECT THE UNDER CARRIAGE. IT WAS DETERMINED THAT THERE WAS GEAR DOOR DAMAGE BUT OKAY TO TAXI. MAINTENANCE REPLACED THE MAIN GEAR DOOR, DOOR LATCH, TORQUE TUBE, AND GEAR CONTROL VALVE WITH LINKAGE ALL ON THE LEFT SIDE. THE RIGHT SIDE HAD THE SEQUENCE DRIVE ARM REPLACED. PERFORMED BITE AND GEAR SWING CHECK. THE AIRCRAFT RETURNED TO SERVICE.

Part: CONTROLLER — FAULTY (CABIN PRESSURE) · airframe 52,122 hrs · 51,266 cycles

AT CRUISE ALTITUDE, CABIN PRESSURE BECAME UNCONTROLLABLE IN AUTO MODE. FOLLOWED COM PROCEDURE. AIRCRAFT DESCENDED TO A LOWER ALTITUDE AND CABIN PRESSURE WAS MAINTAINED WITH AUTO CONTROLLER. MADE AN UNEVENTFUL LANDING IN MKE. MAINTENANCE REPLACED NR 2 CABIN PRESSURE CONTROLLER. AIRCRAFT RETURNED TO SERVICE.

Part: BULKHEAD — CRACKED (FUSELAGE) · airframe 49,999 hrs · 49,395 cycles

STA 851, 3 INCHES RIGHT OF PRESSURE DECK HAS 1 INCH CRACK, AND CORROSION ON TEE JUST AFT OF EXISTING DAMAGE. REPAIRED PER EA 98-177143, 98-177144. L/P 1466590, 1466592.

Part: SKIN — CRACKED (LT TE FLAP) · airframe 49,999 hrs · 49,395 cycles

LT FLAP L/E SECTION 1590 CRACKED IN TWO PLACES. FABBED DOUBLERS FROM 17-7 PH AND REPAIRED PER EA 98-177134. L/P 1465242.

Part: BATTERY — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND LEFT AND RIGHT FORWARD OVERWING EMERGENCY EXIT LIGHTS INOPERATIVE. MAINTENANCE REPLACED BATTERIES, OPERATIONAL CHECK NORMAL.

Part: SEAL — LOOSE (DOOR 1R)

DURING TAKEOFF, HEARD NOISE AND FELT VIBRATION FROM GALLEY DOOR. AIRCRAFT RETURNED OT MSP AND LANDED WITHOUT INCIDENT. UPON MAINTENANCE INSPECTION, FOUND 8 INCHES OF WHITE RUBBER INTERIOR DOOR LINING TRIM LOOSE AND PROTRUDING FROM THE TOP OF DOOR 1R. INSPECTED AND FOUND NO DAMAGE TO AIRCRAFT. REMOVED LOOSE TRIM, OK TO CONTINUE SERVICE.

Part: BATTERY — DISCHARGED (CABIN)

FLIGHT ATTENDANT REPORTED, THE AFT MOUNTED EMERGENCY FLASHLIGHT INOPERATIVE. MAINTENANCE REPLACED THE BATTERY, OPERATIONAL CHECK OK.

Part: TURBINE — FAILED (RT ENGINE)

UPON APPLICATION OF TAKEOFF THRUST, A LOUD THUMP WAS HEARD FOLLOWED BY VIBRATION. RIGHT ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED MOMENTARILY. CREW ABORTED TAKEOFF AND SHUT DOWN THE RIGHT ENGINE. MAINTENANCE INSPECTED AND FOUND A CONTAINED TURBINE FAILURE IN THE RIGHT ENGINE. REPLACED ENGINE. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — OUT OF ADJUST (CABIN)

AFTER TAKEOFF, EMERGENCY LIGHTS AT SEATS 19 AND 22 AND AT EMERGENCY EXIT ROW 15 ILLUMINATED. MAINTENANCE REPLACED BATTERIES AND BATTERY PACK AT AFT RIGHT OVERWING EXIT. OPERATIONAL CHECK OK.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND RIGHT FORWARD OVERWING FLOOR PROXIMITY EMERGENCY LIGHT POWER SUPPLY INOPERATIVE. REPLACED POWER SUPPLY, OPERATIONAL CHECK OK.

Part: CONTROLLER — FAILED (CABIN)

AT FLIGHT LEVEL 350, RED MASTER WARNING AND CABIN ANNUNCIATOR LIGHTS ILLUMINATED. CABIN PRESSURE OBSERVED AT 10,000 FEET, MASKS WERE NOT DEPLOYED. EXECUTED RAPID DESCENT PROCEDURES TO 8,000 FEET, CONTINUED TO ORIGINAL DESTINATION AND LANDED WITHOUT INCIDENT. DEFERRED AUTOMATIC PRESSURIZATION CONTROL SYSTEM AND LATER REPLACED CABIN PRESSURE CONTROLLER, CABIN PRESSURE AMPLIFIER, AND PRE-PRESSURE CONTROLLER. OPERATIONAL CHECK OK.

Part: BATTERY — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND TAILCONE EMERGENCY LIGHTS INOPERATIVE. REPLACED EMERGENCY LIGHT BATTERIES. OPERATIONAL CHECK GOOD.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND FIRST CLASS CABIN EMERGENCY LIGHTS ILLUMINATING WITH EMERGENCY LIGHT SWITCH IN ARMED POSITION AND FOUND SERVICE DOOR 1R EMERGENCY DOOR LIGHT INOPERATIVE. REROUTED PINCHED WIRE AT SEAT 2C AND REPLACED BATTERIES FOR SERVICE DOOR 1R LIGHT. OPERATIONAL CHECK OK.

Part: SILL — CORRODED (BS 370-427)

DURING H-CHECK, FOUND CORROSION BETWEEN SKIN AND SPAR STRAP AT FORWARD CARGO DOOR SILL AREA FS 370 TO 427. REPAIRED PER EA 98-113058.

Part: SKIN — CRACKED (FUSELAGE)

DURING H-CHECK, FOUND CRACK ON INNER SKIN OF AFT SIDE OF DOOR JAMB, DOOR 1R. REPAIRED PER EA 98-113045.

Part: FITTING — CRACKED (VENTRAL DOOR)

DURING H CHECK, FOUND LOWER LEFT VENTRAL DOOR STOP FITTING CRACKED. INSTALLED NEW FITTING PER SRM 51-30-0.

Part: FITTING — CRACKED (VENTRAL DOOR)

DURING H CHECK, FOUND LOWER RIGHT VENTRAL DOOR STOP FITTING CRACKED. REPLACED FITTING (P/N 3917624-517) PER SRM 51-30-0.

Part: WIRE — FAILED (CABIN)

DURING LINE CHECK, FOUND AFT ESCAPE PATH LIGHTS INOPERATIVE. REPLACED WIRING GROUND, OPERATIONAL CHECK OK.

Part: WIRE — BROKEN (RT AIRFOIL DEICE)

RIGHT ICE PROTECTION TEMPERATURE HIGH LIGHT ILLUMINATES WHENEVER THE AIRFOIL ICE PROTECTION IS ON. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPAIRED BROKEN WIRE AT TEMPERATURE HIGH SENSOR. REPLACED RIGHT THERMAL CONTROL BOX, HIGH TEMPERATURE SENSOR, ANTICIPATOR, AND THERMOSTAT. SYSTEM OPERATIONAL CHECK GOOD.

Part: AIR DISTR — ODOR (CABIN)

AFTER TAKEOFF FROM DTW, A BURNING RUBBER/OIL ODOR FILLED AIRCRAFT. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED AIRCRAFT INSIDE AND OUT AND COULD NOT LOCATE SOURCE OF ODOR. AIRCRAFT WAS APPROVED FOR FURTHER SERVICE.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND EMERGENCY LIGHTS IN TAILCONE AREA AFT CABIN INOPERATIVE. REPLACED BATTERIES. OPERATIONAL CHECK OK.

Part: WIRE — CHAFED (TAIL CONE)

DURING LINE CHECK, FOUND AFT TAIL CONE SLIDE EMERGENCY LIGHTS DIM. FOUND WIRE IN AFT TAIL CONE SLIDE EMERGENCY LIGHTS INOPERATIVE, AFT EMERGENCY SLIDE LIGHTS DIM AND VENTRAL STAIR EMERGENCY LIGHTS DIM. FOUND WIRE IN AFT TAIL CONE EMERGENCY SLIDE LIGHT CHAFED AGAINST THE REFLECTOR. REPLACED WIRE AND BATTERY PACK, OPERATIONAL CHECK GOOD.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE CHECK, AFT CABIN DOOR AND TAIL CONE EMERGENCY LIGHTS REPORTED DIM. REPLACED BATTERY POWER SUPPLY ASSEMBLY AND OPERATIONAL CHECKS GOOD.

Part: EEL POWER SUPPLY — INOPERATIVE (CABIN)

DURING PERIODIC CHECK, EMERGENCY LIGHTS IN TAIL AND AFT STAIRWELL AREA FAILED TEN MINUTE TEST. REPLACED BOTH BATTERY POWER SUPPLIES. OPERATIONAL CHECK OK.

Part: DE-ICE SYST — MALFUNCTIONED (EMPENAGE)

DURING CRUISE, AIRFOIL ICE PROTECTION PRESSURE ABNORMAL LIGHT ILLUMINATED INTERMITTENTLY WITH TAIL DE-ICE ACTIVATED. AIRCRAFT DIVERTED TO FSD AND LANDED WITHOUT INCIDENT. REPLACED TAIL SHUTOFF VALVE, PRESSURE SWITCH, AND AIRFOIL PRESSURE DELAY RELAY AND OPERATIONAL TEST GOOD.

Part: SWITCH — LACK OF LUBE (THROTTLE)

DURING CLIMB, ALL THREE LANDING GEAR UNSAFE LIGHTS REMAINED ILLUMINATED AFTER GEAR RETRACTION. RECYCLED LANDING GEAR AND LIGHTS REMAINED ILLUMINATED. AIRCRAFT DIVERTED TO ATL AND LANDED WITHOUT INCIDENT. CLEANED AND LUBRICATED THROTTLE SWITCH WHICH WAS FOUND TO BE STICKY. OPERATIONAL CHECK GOOD.

Part: PROX CONTROL BOX — MALFUNCTIONED (LANDING GEAR)

DURING CLIMBOUT, ALL THREE LANDING GEAR RED UNSAFE LIGHTS REMAINED ON AFTER GEAR WAS RETRACTED, RECYCLED GEAR WITH NO HELP. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. REPLACED LANDING GEAR PROXIMITY CONTROL BOX. OPERATIONAL CHECK OK ON GEAR SWING AND AIRCRAFT RETURNED TO SERVICE.

Part: WARNING LIGHT — ILLUMINATED (TE FLAPS)

MSP - ON FINAL APPROACH, SLAT DISAGREEMENT LIGHT ILLUMINATED. SLATS WERE VISUALLY CONFIRMED TO BE EXTENDED AND NO ROLL WAS NOTICED. EXECUTED GO-AROUND AND LANDED SAFELY WITHOUT INCIDENT ON SECOND ATTEMPT. CYCLED FLAPS AND SLATS SEVERAL TIMES AND DISCREPANCY COULD NOT BE DUPLICATED ON GROUND. AIRCRAFT RETURNED TO SERVICE.

Part: RADAR TRANS — MALFUNCTIONED (FWD ACCESS COM)

WEATHER RADAR SYSTEM FAILED EN ROUTE DTW TO GRB. FLIGHT RETURNED TO DTW DUE TO THUNDERSTORMS AHEAD. AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER. OPERATIONAL CHECK OK, AIRCRAFT RETURNED TO SERVICE.

Part: CONTROL CABLE — BROKEN (RT NLG DOOR)

A LOUD POP ACCOMPANIED BY EXCESSIVE NOSE WHEEL VIBRATION OCCURRED DURING GEAR RETRACTION AFTER TAKEOFF. FLIGHT RETURNED TO MEM AND LANDED WITHOUT INCIDENT. FOUND THE RIGHT NOSE GEAR DOOR IN DOWN POSITION AND DOOR STOP CABLE BROKEN. REPLACED THE RIGHT NOSE STRUT AND DOOR STOP CABLE. AIRCRAFT RETURNED TO SERVICE.

Part: RELAY — MALFUNCTIONED (LANDING GEAR)

ALL LANDING GEAR RED UNSAFE LIGHTS REMAINED ON AFTER GEAR WAS RETRACTED DURING CLIMB-OUT. RECYCLED GEAR WITH SAME RESULTS. FOLLOWED PRECAUTIONARY OPERATING PROCEDURES AND FLIGHT CONTINUED TO DESTINATION (MIA). AIRCRAFT LANDED WITHOUT INCIDENT. REPLACED R2-28 LANDING GEAR LEVER RELAY. OPERATIONAL CHECK OK ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.

Part: VERTICAL GYRO — MALFUNCTIONED (LEFT)

CAPTAIN'S VERTICAL GYRO FAILED DURING TAKEOFF ROLL AT DTW. ABORTED TAKEOFF AND RETURNED TO GATE. REPLACED CAPTAIN'S VERTICAL GYRO. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.