N613NW

Part: LANYARD — MISROUTED (EVAC SLIDE) · airframe 78,621 hrs · 86,475 cycles

DURING A NON-ROUTINE MAINTENANCE CHECK THE TAIL CONE EMERGENCY EVACUATION SLIDE DEPLOYMENT LANYARDS WERE FOUND TO BE MISROUTED. THIS CONFIGURATION OF THE STRAPS BEING ROUTED ON THE WRONG SIDE OF THE TOP DEPLOYMENT LANYARD COULD PREVENT THE PROPER OPERATION OF THE TAIL CONE SLIDE IN THE EVENT OF AN EMERGENCY. THE ROUTING OF THE LANYARDS WAS CORRECTED, INSPECTED, AND CLEARED FOR REVENUE SERVICE.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 78,600 hrs · 86,459 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR THE VENTRAL STAIRWAY AND THE TAIL COMPARTMENT WAS INOPERATIVE. MAINTENANCE REPLACED THE BATTERIES. OPERATIONAL CHECK WAS GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHT) · airframe 76,844 hrs · 85,025 cycles

DURING LINE CHECK, BOTH OF THE AFT OVERWING EMERGENCY EXIT SINGS WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION. (A)

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 76,783 hrs · 84,976 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY EXIT SIGN LIGHT FOR BOTH OF THE AFT OVERWING HATCHES WERE INOPERATIVE. MAINTENANCE REPLACE TWO OF THE BATTERY PACKS AND THE SIGN LIGHTS RETURNED TO AN OPERATIONAL CONDITION. (A)

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 76,723 hrs · 84,928 cycles

DURING LINE CHECK, THE RT AND LT HAND OVERWING EMERGENCY EXIT SIGNS AT ROW 12 AND THE EMERGENCY PATHWAY LIGHTING AT ROWS 11, 12 & 13 WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK FOR EXIT ROW 12ABC WITH A SERVICEABLE UNIT AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION. (A)

Part: WIRE — PINCHED (EMERGENCY LIGHTS) · airframe 76,255 hrs · 84,544 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR ROWS 18 THROUGH 21 IN COACH SEATS HAD FAILED. AFTER MAINTENANCE FOUND THE EXIT IDENTIFIER POWER PACK FUSE BY THE AFT FLIGHT ATTENDANT PANEL HAD BLOWN THEY INVESTIGATED FURTHER. THE POWER SUPPLY WIRE WAS FOUND PINCHED BETWEEN THE SEAT RAIL AND THE SEAT TRACK AT ROW 18. THE WIRE WAS REPAIRED, THE FUSE REPLACED, AND OPERATIONAL CHECK COMPLETE.

Part: POWER SUPPLY — INOPERATIVE (EMERGENCY LIGHT) · airframe 76,197 hrs · 84,505 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE AFT EMERGENCY OVERWING EXIT SIGNS ON BOTH THE LEFT AND RIGHT SIDES WERE INOPERATIVE. MAINTENANCE REPLACED THE POWER SUPPLY (B5-25) AND OPERATIONALLY CHECKED THE SYSTEM. THE AIRCRAFT RETURNED TO SERVICE.

Part: DOOR FRAME — CRACKED (MLG DOOR) · airframe 73,346 hrs · 82,209 cycles

DURING L-CHECK FOUND CRACK IN RIGHT MAIN LANDING GEAR DOOR CUTOUT FRAME. REPAIRED PER EA 96-206883.

Part: BLEED AIR SYS — CONTAMINATED (NR 1 ENGINE) · airframe 70,130 hrs · 79,754 cycles

DURING ROTATION, SMOKE ENTERED THE COCKPIT AND CABIN. FLIGHT CREW DECLARED AN EMERGENCY AND RETURNED TO DEPARTURE AIRPORT PERFORMING AN UNEVENTFUL LANDING. MAINTENANCE FOUND OIL IN NR 1 ENGINE 8TH STAGE BLEED. REPLACED THE NR 1 ENGINE. OPERATIONAL CHECK GOOD.

Part: SPAR CAP — CORRODED · corrosion level 2 · airframe 63,699 hrs · 74,874 cycles

During Mck in DHN the right wing rear spar upper cap was found corroded at the inboard hole. Repaired per EA 96-187657.

Part: SKIN — CORRODED (LT & RT WINGS) · corrosion level 2 · airframe 60,802 hrs · 72,690 cycles

NUMEROUS AREAS OF CORROSION ON LEFT AND RIGHT WINGS. REPAIRED BY BLENDING, DOUBLERS, AND FASTENER REPLACEMENT. REPAIRED PER SRM 53-04 AND EA''S 96-178021, 96-178129, REFERENCE LOG PAGES DURING THE MONTH OF AUGUST 2000.

Part: PROX SENSOR — FAILED (NLG)

DURING APPROACH INTO DTW, NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR EXTENSION. FLIGHT CREW DECLARED A YELLOW EMERGENCY AND ALTERNATE GEAR EXTENSION PROCEDURES WERE UTILIZED FOR LANDING. MAINTENANCE FOUND BROKEN NOSE GEAR PROXIMITY SENSOR. ALSO, REPLACED LEFT MAIN GEAR DOOR SKID PLATE DUE TO DAMAGE INCURRED ON LANDING. OPERATIONAL CHECK NORMAL ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.

Part: AMPLIFIER — FAILED (CABIN PRESS SYST)

AUTO PRESSURIZATION SYSTEM FAILED AFTER TAKEOFF, FLIGHT WAS RETURNED TO STL AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CABIN PRESSURE AMPLIFIER. OPERATIONAL CHECK NORMAL ON GROUND. AIRCRAFT RETURNED TO SERVICE.

Part: RELAY — FAILED (GROUND CONTROL)

AUTO PRESSURIZATION SYSTEM FAILED AFTER TAKEOFF. FLIGHT RETURNED TO STL AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED R2-4 GROUND CONTROL RELAY. OPERATIONAL CHECK NORMAL ON GROUND. AIRCRAFT RETURNED TO SERVICE.

Part: POWER SUPPLY — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND OVERHEAD EMERGENCY LIGHTS AT ROWS 16, 18, AND 20 INOPERATIVE. REPLACED POWER SUPPLY B5-27, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND OVERHEAD EMERGENCY LIGHTS BETWEEN ROWS 5 THROUGH 9 INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND AFT EMERGENCY OVERWING EXIT LIGHTS INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK. OPERATIONAL CHECK OK.

Part: TR UNIT — FAILED (RADAR SYSTEM)

WEATHER RADAR SYSTEM FAILED AFTER TAKEOFF. FLIGHT RETURNED TO MEM AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT CABIN OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES IN PACK, OPERATIONAL CHECK NORMAL.

Part: STRUT — REQD SERVICE (NLG)

LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. PRESSURIZATION WAS ALSO INOPERATIVE. FLIGHT RETURNED TO MCI AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE LANDING GEAR STRUT LOW WHICH CAUSED AIRCRAFT TO REMAIN IN GROUND MODE. SERVICED NOSE STRUT AND REPLACED SCHRAEDER VALVE. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.

Part: CIRCUIT BREAKER — MALFUNCTIONED (COCKPIT)

DURING FLIGHT, EMERGENCY LIGHTS IN MAIN CABIN REMAINED ON WHILE SWITCH WAS IN ARMED POSITION. REPLACED B1-41 CIRCUIT BREAKER 061641, OPERATIONAL CHECK NORMAL.

Part: SWITCH — MALFUNCTIONED (CABIN)

DURING FLIGHT, THE FLOOR PROXIMITY EMERGENCY LIGHTS IN MAIN CABIN FLICKERED ON AND OFF. REPLACED FLIGHT ATTENDANT EMERGENCY LIGHT SWITCH. OPERATIONAL CHECK OK.

Part: SWITCH — FAILED (CABIN)

FLIGHT ATTENDANT REPORTED EMERGENCY LIGHTS FLICKERING ON AND OFF DURING TAKEOFF AND LANDING. REPLACED EMERGENCY LIGHT SWITCH, OPERATIONAL CHECK NORMAL.

Part: EPR TRANSMITTER — FAILED (NR 1 ENGINE)

DURING TAKEOFF, THE NR 1 ENGINE EPR INDICATOR BECAME INOPERATIVE. CREW ABORTED TAKEOFF AND RETURNED TO THE GATE WITHOUT INCIDENT. MAINTENANCE REPLACED THE NR 1 ENGINE EPR TRANSMITTER, OPERATIONAL CHECK OK.

Part: LIGHTS — MALFUNCTIONED (CABIN)

ALL EMERGENCY LIGHTS, SIGNS AND PATH LIGHTING BEGAN FLICKERING DURING FLIGHT. MAINTENANCE INSPECTED WIRING AT OVERHEAD COCKPIT FORWARD FLIGHT ATTENDANT SWITCH AND AT CONNECTOR P1-4009, ALL CHECKED NORMAL. DISCREPANCY COULD NOT BE DUPLICATED.

Part: BALLAST — FAILED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND RIGHT SIDEWALL LIGHTS FLICKERING IN BRIGHT AND DIM SETTINGS. MAINTENANCE FOUND RIGHT SIDEWALL LIGHT BALLAST IN FORWARD CABIN WITH BURNT CONTACTS. ALSO, FOUND AFT PINS IN WIRE HARNESS BURNT. DEACTIVATED SIDEWALL LIGHTS PER FC 3320-01067 AND DEFERRED PER MEL 33-2.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT CABIN SECTION EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES AND OPERATIONAL CHECK NORMAL.

Part: COMPUTER — FAILED (E/E COMPT)

DURING CLIMB, THE STALL INDICATION FAILURE LIGHT ILLUMINATED. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED THE STALL WARNING COMPUTER AND OPERATIONAL CHECK GOOD.

Part: WINDSHIELD — CRACKED (LT COCKPIT)

DURING CLIMB, GDC-MSP AT 3000 FEET, THE LEFT WINDSHIELD HEAT SYSTEM BEGAN ARCING. THE SYSTEM WAS SHUT OFF AT WHICH TIME THE WINDSHIELD CRACKED. THE AIRCRAFT RETURNED TO GDC WITHOUT FURTHER INCIDENT. REPLACED THE WINDSHIELD AND HEAT CONTROLLER.

Part: BULB — MISSING (CABIN)

DURING ROUTINE CHECK, FOUND TOP AND BOTTOM BULBS MISSING IN THE EMERGENCY EXIT LIGHT AT THE FORWARD ENTRANCE DOOR. INSTALLED BULBS AND OPERATIONAL CHECK GOOD.

Part: FITTING — CRACKED (FS 1038)

DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND A 1.5 INCH CRACK IN SUPPORT MOUNT FITTING FS 1038 AT LONGERON 14R. REPLACED FITTING PER SRM 51-00.

Part: FITTING — CRACKED (HORIZ STAB)

DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND A 1.2 INCH CRACK IN THE HORIZONTAL STABILIZER CENTER BOX T-FITTING AT THE FORWARD UPPER SPAR. REPLACED FITTING PER SRM 51-30.

Part: BLKHD FITTING — CORRODED (FS 996)

DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND CORROSION ON THE FS 996 AFT PRESSURE BULKHEAD LOWER FRAME FITTING. REPLACED FITTING PER SRM 51-10-03, 51-30.

Part: FITTING — CRACKED (TE FLAP)

DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND A CRACK IN THE RIGHT FLAP NR 3 WEDGE INBOARD T-FITTING. REPLACED FITTING PER SRM 51-30, 51-10.

Part: FITTING — CRACKED (TE FLAP)

DURING ACCEPTANCE CHECK AND PRIOR TO SERVICE, FOUND A CRACK IN THE RIGHT FLAP NR 1 WEDGE UPPER OUTBOARD FORWARD CORNER FITTING. REPLACED FITTING PER DWG 5912992 AND SRM 51-30, 51-10.