N759NW

Part: BATTERY PACK — DISCHARGED (EMERGENCY LIGHTS) · airframe 89,508 hrs · 80,458 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 13/16 OF THE CABIN WERE INOPERATIVE. MAINTENANCE REPLACED THE BATTERIES FOR THE OVERWING EMERGENCY EXIT SIGN. OPERATIONAL CHECK WAS GOOD.

Part: BATTERY PACK — INOPERATIVE (EMERGENCY LIGHTS) · airframe 89,500 hrs · 80,451 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MAINTENANCE REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: FUEL SYS — MALFUNCTIONED (NR 1 ENGINE) · airframe 89,148 hrs · 80,114 cycles

DURING TAKEOFF ENGINE NR 1 WAS SLOW TO REACH TAKEOFF POWER. DURING ROTATION AND CLIMB, ENG NR 1 EPR BEGAN TO DETERIORATE. ENGINE NR 1 FUEL FLOW WAS HIGHER THAN ENGINE NR 2. FLIGHT CREW RETURNED ACFT TO DEPARTURE AIRPORT. DURING MX GROUND RUN SLIGHT FUEL MIST NOTED OUT EXHAUST. DURING SNAP EXCEL, HEAVY WHITE SMOKE OUT EXHAUST WAS NOTED. AFTER ENGINE SHUTDOWN FOUND FUEL PUDDLES IN TAIL PIPE. ENGINE REPLACED. (K)

Part: FUSE — FAILED (EMERGENCY LIGHT) · airframe 88,306 hrs · 79,334 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MAINTENANCE REPLACED THE ASSOCIATED FUSE IN THE POWER SUPPLY PACK IN THE FIRST CLASS EMERGENCY EXIT LIGHT AT DOOR 1R. OPS CHECK WAS GOOD. (S)

Part: WIRE — SHORTED (EMEGENCY LIGHTS) · airframe 88,165 hrs · 79,202 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN ROWS 12-15 AND THE AFT LT OVERWING EMERGENCY EXIT SIGN WERE INOPERATIVE. MAINTENANCE FOUND A SHORTED WIRE, REPAIRED IT, REPLACED THE FUSE, AND REPLACED THE APPLICABLE POWER SUPPLY. OPERATIONAL CHECK WAS GOOD. (A)

Part: FUSE — INOPERATIVE (EMERGENCY LIGHTS) · airframe 88,115 hrs · 79,153 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING FOR SEVERAL ROWS OF COACH SEATS IN THE CABIN HAD FAILED. MAINTENANCE REPLACED THE ASSOCIATED FUSE AT THE AFT LT OVERWING EXIT. OPERATIONAL CHECK WAS GOOD. (A)

Part: BATTERY — INOPERATIVE (EMERGENCY LIGHT) · airframe 88,008 hrs · 79,057 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MAINTENANCE REPLACED THE ASSOCIATED FUSE AND INSTALLED NEW BATTERIES IN THE POWER SUPPLY. OPERATIONAL CHECK WAS GOOD. (A)

Part: FUSE — FAILED (EMERGENCY LIGHT) · airframe 87,546 hrs · 78,643 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE EMERGENCY PATHWAY LIGHTING IN THE FIRST CLASS SECTION OF THE CABIN HAD FAILED. MAINTENANCE REPLACED THE EMERGENCY POWER SUPPLY FUSE. OPERATIONAL CHECK WAS GOOD AND THE AIRCRAFT RETURNED TO SERVICE.

Part: SKIN — CRACKED (FUSELAGE) · airframe 86,668 hrs · 77,887 cycles

DURING "M" CHECK, FOUND CRACK IN FUSELAGE EXTERIOR SKIN AT UPPER FORWARD CORNER OF L1 PASSENGER DOOR. REPAIRED PER EA 97-210178.

Part: COALESCER BAG — CONTAMINATED (CABIN AIR) · airframe 82,468 hrs · 74,141 cycles

SMOKE WAS REPORTED COMING OUT OF UPPER CABIN SIDEWALL DURING CLIMBOUT. THE AIRCRAFT RETURNED TO AN UNEVENTFUL LANDING BACK AT OMA. NO FIRE EXTINGUISHER ACTIVATED BUT ONE FLIGHT ATTENDANT DONNED PROTECTIVE BREATHING EQUIPMENT. CONTRACT MAINTENANCE AT OMA DISCOVERED THE RIGHT COALESCER BAG OUT OF POSITION BUT NO OTHER DISCREPANCIES FOUND. INSPECTED THE AIRCRAFT FOR SIGNS OF FLUID/OIL LEAKS, WIRE PROBLEMS, LIGHT FAULTS, HEAT OR SMOKE SOURCE; BUT NO TROUBLE WAS FOUND. SUSPECT VISIBLE CONDENSATION DUE TO COALESCER BAG BEING OUT OF POSITION. THE AIRCRAFT HAS RETURNED TO SERVICE.

Part: ANGLE — CRACKED (WING TO BODY) · airframe 81,320 hrs · 73,056 cycles

DURING H-CHECK FOUND CRACKED RT WING TO FUSELAGE ATTACH ANGLE AT BS 644. REPAIRED PER EA 97-201426.

Part: CONTROL CABLE — OUT OF RIG (L/E SLAT) · airframe 77,165 hrs · 69,293 cycles

ON TAKEOFF, THE CREW HAD A STALL INDICATOR ACCOMPANIED WITH A STICK SHAKER. ONCE IN THE AIR, A LOUD POP WAS HEARD AND THE AIRCRAFT ROLLED TO THE RIGHT. AFTER ROLL CORRECTION, THE STALL INDICATION CLEARED BUT THE CREW ELECTED TO RETURN TO MSP. LANDING WAS UNEVENTFUL AND MAINTENANCE FOUND THE SLAT EXTEND CABLE LOOSE AND THE TURNBUCKLE BINDING AS IT MOVED THROUGH A LIGHTENING HOLE. REPLACED THE AOA TRANSDUCERS, BOTH STALL WARNING COMPUTERS, AND TONE GENERATORS. RIGGED SLATS. OPERATIONAL CHECK OK. AIRCRAFT RETURNED TO SERVICE.

Part: SPAR CAP — CORRODED (RT WING) · corrosion level 2 · airframe 75,374 hrs · 67,819 cycles

DURING H CHECK IN ATL, CORROSION WAS FOUND ON RT WING REAR SPAR UPPER CAP AROUND THE HOLE FOR NR 3 FLAP HINGE STUD. THE HOLE WAS CLEANED UP WITH A DEPTH OF .040 INCH AND DIAMETER OF 1.26 INCH EXTRUSION 4911204, PER EA 97-185168.

Part: PRESSURE PANEL — CRACKED · airframe 75,375 hrs · 67,819 cycles

EA 97-185179 During H-ck at ATL Base Maintenance a crack was found in the horizontal pressure panel Web P/N 9910073-3-13 at sta 105 and X 25rh. the crack is typical and was trimmed out. The repair was accomplished IAW NWA tRM 53-10-02 dated april 18/01. Material .040" 2024-t3 al clad sheet.

Part: SMOKE DETECTOR — MALFUNCTIONED (CARGO BAY) · airframe 74,767 hrs · 67,273 cycles

DURING APPROACH INTO GRB, FORWARD CARGO COMPARTMENT FIRE DETECTOR SOUNDED. FOLLOWED COM PROCEDURES AND EXTINGUISHING BOTTLE WAS DISCHARGED. LANDING WAS UNEVENTFUL. MAINTENANCE REPLACED CARGO SMOKE DETECTOR, ECU, AND BOTTLE. AIRCRAFT RETURNED TO SERVICE.

Part: LIGHT — INOPERATIVE (AIRSTAIRS) · airframe 73,338 hrs · 66,111 cycles

DURING LINE CHECK, FOUND AFT AIRSTAIRS LEFT SIDE OF EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE REPLACED THE BULBS. OPERATIONAL CHECK NORMAL.

Part: SKIN — CRACKED (FUSELAGE) · airframe 72,028 hrs · 65,098 cycles

FUSELAGE SKIN AT EDGE OF AFT CARGO DOOR JAMB LWR FWD CORNER HAS AN .125 INCH CRACK. REPAIRED PER EA 97-172340 & SRM 53-05. L/P 1423011

Part: FRAME — CRACKED (BS 329)

DURING M CHECK, THE LOWER SECTION OF FS 218, STR 25L FUSELAGE FRAME WAS FOUND CRACKED. REPAIRED PER EA 97-159355. MFG PART NUMBER: 9911520-385.

Part: WIRE — CORRODED (CABIN)

DURING LINE CHECK, FOUND EMERGENCY LIGHT IN FIRST CLASS SECTION INOPERATIVE. MAINTENANCE CLEANED CORRODED WIRE SPLICE AT SEATS 1C AND D. OPERATIONAL CHECK NORMAL.

Part: BATTERY — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND FIRST CLASS SECTION OF FLOOR LIGHTING WOULD NOT EXTINGUISH WITHOUT RECYCLING POWER SWITCH. MAINTENANCE REPLACED BATTERY, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND EMERGENCY LIGHT IN TAIL COMPARTMENT INOPERATIVE. MAINTENANCE REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: SENSOR — MALFUNCTIONED (NLG)

DURING APPROACH, NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON WITH NO GREEN INDICATION AFTER GEAR EXTENSION. CREW RECYCLED GEAR AND NORMAL INDICATIONS WERE ACHIEVED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE GEAR PROXIMITY SENSOR, OPERATIONAL CHECK NORMAL.

Part: LIGHT — INOPERATIVE (CABIN)

DURING LINE CHECK, FOUND EMERGENCY EXIT LIGHT AT SEAT ROW 3 INOPERATIVE. MAINTENANCE INSTALLED NEW EMERGENCY EXIT LIGHT AT SEAT ROW 3, OPERATIONAL CHECK OK.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS BETWEEN ROWS 16 THRU 23 INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL.

Part: UNSAFE LIGHT — ILLUMINATED (LANDING GEAR)

DURING CLIMB, 3 GEAR UNSAFE LIGHTS ILLUMINATED. RECYCLED GEAR WITH NO CHANGE IN INDICATION. VERIFIED GEAR ABD DOORS UP AND LOCKED. PROCEEDED TO DTW WITH NO FURTHER INCIDENT. MAINTENANCE PRECAUTIONARY CHANGED THROTTLE TRANSFER RELAY.

Part: CONNECTOR — FAILED (CABIN)

DURING LINE CHECK, FOUND EMERGENCY LIGHTING INOPERATIVE FROM WING EXIT AFT. REPLACED TERMINAL END ON OVERWING EMERGENCY LIGHT BATTERY PACK, OPERATIONAL CHECK OK.

Part: FITTING — CORRODED (BS 756)

DURING H-CHECK, FOUND CORROSION ON OUTBOARD UPPER TRAPEZOID PANEL ATTACH FITTING, FS 756. REPLACED PER SRM 51-10-4.

Part: FITTING — CORRODED (BS 756)

DURING H-CHECK, FOUND CORROSION ON THE LEFT TRAPEZOID PANEL FRAME FITTING FS 756. REPLACED FITTING PER SRM 57-09, FIG 34.

Part: FITTING — CRACKED (BS 783-794)

DURING H-CHECK, FOUND CRACK IN FITTING AT FS 783 - 794, LBL ZERO IN THE LEFT MAIN LANDING GEAR WHEELWELL. REPLACED FITTING PER SRM 51-30-5.

Part: PRESSURE PANEL — CRACKED (BS 105)

DURING H-CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT FS 105 RIGHT OF OUTBOARD VERTICAL FRAME. REPAIRED PER EA 97-111859.

Part: PRESSURE PANEL — CRACKED (BS 105)

DURING H-CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT FS 105 LEFT OUTBOARD FRAME. REPAIRED PER EA 97-111859.

Part: PRESSURE PANEL — CRACKED (BS 83)

DURING H-CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT LEFT FRAME FS 83. REPAIRED PER EA 99-111860.

Part: PRESSURE PANEL — CRACKED (BS 83)

DURING H-CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT RIGHT FRAME FS 83. REPAIRED PER EA 99-111860.

Part: PRESSURE PANEL — CRACKED (BS 105)

DURING H-CHECK, FOUND CRACK IN NOSE LANDING GEAR WHEEL WELL HORIZONTAL PRESSURE PANEL AT FS 105 NEAR LEFT INBOARD VERTICAL FRAME. REPAIRED PER EA 97-111859.

Part: ADI INDICATOR — FAILED (LT COCKPIT)

AFTER TAKEOFF, CAPTAIN'S ATTITUDE GYRO CIRCUIT BREAKER POPPED. RESET AND POPPED AGAIN. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED NR 1 ADI AND NR 1 AMPLIFIER, OPERATIONAL CHECK OK.

Part: T/O WARNING — ACTIVATED (COCKPIT)

RECEIVED TAKEOFF WARNING WHEN POWER ADVANCED FOR TAKEOFF. REPLACED INTERRUPTER, OPERATIONAL CHECK OK.

Part: RADAR ANTENNA — OUT OF ADJUST (FWD FUSELAGE)

DURING CRUISE, WEATHER RADAR IMAGES CELLS THAT MOVE 20 TO 30 MILES AFTER EACH SWEEP DUE TO EN ROUTE WEATHER. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. TESTED THE RADAR TRANSCEIVER PER 34-41-4. ADJUSTED ANTENNA/TRANSCEIVER SYNCHRONIZATION, OPERATIONAL CHECK GOOD.

Part: ELBOW — CRACKED (LT FUEL TANK)

DURING TAKEOFF, NOTICED FUEL VENTING FROM THE RIGHT WING. ABORTED TAKEOFF AND RETURNED TO THE GATE. FOUND CRACKED ELBOW ON INBOARD PUMP VOLUTE IN THE LEFT TANK. REPLACED ELBOW AND CHECKED VENT POPPETS, LEAK AND OPERATIONAL CHECK GOOD.

Part: CONNECTOR — DIRTY (LT UPLIMIT SW)

DURING TAKEOFF FROM MSP, THE LEFT MAIN LANDING GEAR UNSAFE LIGHT REMAINED ON. RETURNED TO MSP AND LANDED WITHOUT INCIDENT. FOUND DIRT ON THE UPLIMIT SWITCH CANNON PLUG. CLEANED CANNON PLUG. REPLACED UPLIMIT SWITCH AND DOWNLOCK SWITCH PRECAUTIONARY. GEAR OPERATIONAL CHECKS WERE GOOD.

Part: BATTERYQXEA96000 — DISCHARGED (CABIN)

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

Part: AIR DUCTS — DIRTY (CABIN)

CABIN FILLED WITH SMOKE ACCOMPANIED BY STRONG OIL SMELL AFTER TAKEOFF. FLIGHT RETURNED TO DTW AND AIRCRAFT LANDED WITHOUT INCIDENT. FOUND OIL RESIDUE IN PACK DUCTING FROM PREVIOUS APU PROBLEM. CLEANED DUCTING, REPLACED WATER SEPARATOR BAGS AND OPERATIONAL CHECK OK.

Part: HANDLE — OUT OF ADJUST (TAILCONE)

DURING PERIODIC CHECK, FOUND THAT EXCESSIVE FORCE WAS REQUIRED TO PULL BOTH THE INTERIOR AND EXTERIOR HANDLES FROM THE CLIPS. ALSO, FOUND THAT EXCESSIVE FORCE WAS REQUIRED TO RELEASE THE TAILCONE USING THE INTERIOR HANDLE. ADJUSTED THE CLIPS AND LATCHES. CHECKED OK.

Part: FITTING — CORRODED (MLG)

DURING PERIODIC CHECK, FOUND CORROSION ON FORWARD AND AFT SIDES OF THE MAIN LANDING GEAR FIXED SIDE BRACE ATTACH FITTING LUG. REWORKED LUG PER EA 97-097473.

Part: FITTING — CRACKED (CARGO DOOR)

DURING PERIODIC CHECK, FOUND CRACKS IN THE AFT CARGO DOOR BEAM END FITTINGS NR 3 AFT AND NR 4 FORWARD AND AFT. REPLACED FITTINGS PER SRM 51-30-2.

Part: FITTING — CRACKED (FS 642)

DURING PERIODIC CHECK, FOUND CRACK IN LEFT HALF OF LONGERON 30 END FITTING AT FS 642. REPLACED FITTING PER SRM 51-30-5.

Part: SKIN — CRACKED (FUSELAGE)

DURING LINE CHECK, FOUND TWO 1.50 INCH CRACKS IN THE RIGHT FUSELAGE SKIN AFT OF ELEVATOR ACCUMULATOR SERVICE DOOR. REPAIRED PER EA 97-096492.