N925US

Part: FRAME — CRACKED (BS 1004 S28-28RL) · airframe 80,521 hrs · 80,037 cycles

DURING "H" CHECK, FOUND CRACKS IN APU FORWARD FRAME AT BS 1004 BETWEEN L28L-L29L AND L28R-L29R. REPAIRED PER EA 99-210163.

Part: LINE — LEAKING (HYDRAULIC SYS) · airframe 79,532 hrs · 79,267 cycles

ON SHORT FINAL APPROACHING CLE, THE CREW RECEIVED A FLICKERING "RUDDER CONTROL MANUAL" WARNING INDICATION WHICH WENT TO STEADY ON AFTER TOUCHDOWN. THE AIRCRAFT ALSO EXPERIENCED A COMPLETE LOSS OF HYDRAULIC FLUID AND PRESSURE IN THE RIGHT SYSTEM. COM PROCEDURES WERE COMPLIED WITH AND THE AIRCRAFT STOPPED ON THE TAXIWAY AND WAS SUBSEQUENTLY TOWED TO THE GATE. MAINTENANCE FOUND AND REPLACED A LEAKING PRESSURE LINE COMING FROM THE AUXILIARY HYDRAULIC PUMP. THE LINE WAS REPLACED BY A TEMPORARY LINE AND IS CURRENTLY DEFERRED. THE RIGHT SYSTEM ENGINE DRIVEN PUMP AND FILTERS WERE ALSO REPLACED. LEAK CHECKS WERE ALL GOOD AND THE AIRCRAFT HAS RETURNED TO SERVICE.

Part: WHEEL — FAILED (LT MLG) · airframe 71,391 hrs · 72,911 cycles

THE LEFT OUTBOARD ANTI-SKID LIGHT ILLUMINATED DURING TAKEOFF ROLL AT FAR. CLIMBOUT AND GEAR RETRACTION WERE NORMAL. LANDING WAS UNEVENTFUL AT MSP BUT CREW THOUGHT THE AIRCRAFT WAS A LITTLE HARD TO TAXI. SUSPECTED A FLAT TIRE OR A DRAGGING BRAKE. NO TIRE WAS FLAT AND INSPECTION REVEALED THE WHEEL HUB HAD FAILED. HUBCAP AND BEARINGS WERE FOUND ON THE TAXIWAY AT FAR. MAINTENANCE REPLACED THE DAMAGED WHEEL, NR 1 BRAKE, AND NR 1 ANTI-SKID TRANSDUCER. ALL FUNCTIONAL CHECKS WERE GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: SEPARATOR — MALFUNCTIONED (A/C BAY) · airframe 69,857 hrs · 71,754 cycles

AFTER TAKEOFF, FLIGHT ATTENDANTS REPORTED SMOKE IN THE CABIN. DECLARED AN EMERGENCY AND RETURNED TO MEM WITH AN UNEVENTFUL LANDING. MAINTENANCE REPLACED THE RIGHT WATER SEPARATOR. INSPECTED TAIL. LEAK AND OPERATIONAL CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: FRAME — CORRODED (FUSELAGE) · corrosion level 2 · airframe 67,524 hrs · 70,066 cycles

CORROSION AT THE FWD B/B LOWER FLANGE OF DOOR OPENING. REMOVED CORROSION AND REPAIRED ARE IAW EA 99-177196 LOG PAGE 1480766.

Part: POWER SUPPLY — INOPERATIVE (RT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND RIGHT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED POWER SUPPLY AND BATTERIES, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

AFT EMERGENCY FLASHLIGHT INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (RT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND RIGHT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK AND POWER SUPPLY, OPERATIONAL CHECK NORMAL.

Part: CONTROL VALVE — FAILED (TE FLAP SYSTEM)

FLAPS INDICATED 5 DEGREES WITH FLAP HANDLE SELECTED UP AFTER TAKEOFF. FLIGHT WAS RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED FLAP CONTROL VALVE AND RIGGED SYSTEM, LEAK AND OPERATIONAL CHECK NORMAL.

Part: LINE — BROKEN (RT HYD SYST)

LOSS OF RIGHT HYDRAULIC SYSTEM QUANTITY AND PRESSURE OCCURRED IMMEDIATELY AFTER GEAR RETRACTION. NOSE GEAR RETRACTED NORMALLY BUT BOTH MAIN GEARS WERE STILL EXTENDED WITH GEAR DOOR OPEN LIGHT ILLUMINATED. FLIGHT WAS RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND BROKEN HYDRAULIC LINE AT AUXILIARY HYDRAULIC PUMP. REPLACED LINE, AUXILIARY PUMP, RIGHT ENGINE DRIVEN PUMP, AND ALL FILTERS. LEAK AND OPERATIONAL CHECK NORMAL.

Part: SLIDE — LOW PRESSURE (TAIL CONE)

DURING LINE MAINTENANCE INSPECTION, FOUND TAILCONE EVACUATION SLIDE BOTTLE PRESSURE LOW. REPLACED SLIDE, CHECKED OK.

Part: CIRCUIT BREAKER — INOPERATIVE (FLIGHT DECK)

DURING CLIMB-OUT, THE RIGHT WING FLAP WOULD NOT RETRACT FROM THE 15 DEGREE POSITION, THE WINDSHEAR ANNUNCIATOR LIGHT ILLUMINATED, THE FIRST OFFICER'S SPEED COMMAND FLAG WAS IN VIEW, AND THE NR 1 AND NR 2 VHF RADIOS BECAME INOPERATIVE (BOTH WORKED NORMALLY IN EMERGENCY MODE). THE FLIGHT CREW RESTORED THE FLAP SETTING TO THE 15 DEGREE POSITION, RETURNED TO ORIGINATION, AND LANDED WITHOUT INCIDENT. MAINTENANCE RESET THE RIGHT INSTRUMENT TRANSFORMER CIRCUIT BREAKER AND PULLED AND COLLARED THE RIGHT FLAP INDICATOR CIRCUIT BREAKER PER MEL PROCEDURES. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING INSPECTION, THE AFT OVERHEAD EMERGENCY LIGHTS WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE EMERGENCY LIGHTS BATTERY PACK. OPERATIONAL CHECK OK.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT LEFT LAVATORY EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERIES. OPERATIONAL CHECK NORMAL.

Part: FUSE — BLOWN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY LIGHTS IN FIRST CLASS AND AT SERVICE DOOR INOPERATIVE. REPLACED FUSE, OPERATIONAL CHECK NORMAL.

Part: LIGHT — INOPERATIVE (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND EMERGENCY LIGHTS AT AFT EVACUATION SLIDE AFT SEAT ROW 21 AND COCKPIT OVERHEAD INOPERATIVE. RELAMPED AFT EVACUATION SLIDE LIGHT AND CLEANED MATING SURFACE. RELAMPED COCKPIT LIGHT, CONNECTED ROW 21 TO EMERGENCY LIGHT FLOOR TRACK WIRING, OPERATIONAL CHECK NORMAL.

Part: FRAME — CRACKED (BS 1109)

DURING M-CHECK, FOUND A CRACK IN FRAME AT LEFT END FITTING ON FORWARD SIDE OF CANTED FRAME 1046 FS 1109 JUST BELOW LONGERON 8L. REPAIRED PER EA 99-110835.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (LT EXTERIOR)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT EXTERIOR EMERGENCY LIGHT INOPERATIVE. REPLACED POWER SUPPLY, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (LT NACELLE)

DURNG LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (TAIL CONE)

DURING LINE MAINTENANCE INSPECTION, FOUND TAIL CONE EVACUATION SLIDE EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES IN POWER SUPPLY ABOVE RIGHT LAVATORY, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND BOTH EXTERIOR NACELLE EMERGENCY LIGHTS INOPERATIVE. REPLACED BOTH BATTERY PACKS. OPERATIONAL CHECK NORMAL.

Part: SLIDE — LOW PRESSURE (TAIL COMPT)

DURING LINE MAINTENANCE INSPECTION, FOUND TAIL EVACUATION SLIDE BOTTLE PRESSURE LOW. REPLACED SLIDE.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT OVERWING EMERGENCY EXIT LIGHTS INOPERATIVE. REPLACED BATTERIES. OPERATIONAL CHECK NORMAL.

Part: POWER SUPPLY — INOPERATIVE (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND EMERGENCY LIGHTS AT MAIN CABIN DOOR AND FLOOR PROXIMITY LIGHTS AT RIGHT GALLEY ACROSS FROM LAVATORY INOPERATIVE. REPLACED POWER SUPPLY AND BATTERIES, OPERATIONAL CHECK NORMAL.

Part: SWITCH — MALFUNCTIONED (LT ANTI-SKID)

LEFT INBOARD ANTI-SKID LIGHT ILLUMINATED DURING TAKEOFF ROLL. ABORTED TAKEOFF AT 60 KNOTS. PILOT RECYCLED ANTI-SKID SWITCH, SECOND TAKEOFF ATTEMPT WAS SUCCESSFUL. FLIGHT CONTINUED WITHOUT FURTHER INCIDENT.

Part: TRANSMITTER — MALFUNCTIONED (NR 1)

NR 1 EPR INDICATION FROZE AT 1.55 ON TAKEOFF ROLL. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE EPR TRANSMITTER WITH A SERVICEABLE UNIT.

Part: EPR INDICATOR — MALFUNCTIONED (COCKPIT)

NR 1 ENGINE EPR INDICATION FROZE AT 1.45 ON TAKEOFF ROLL. THE TAKEOFF WAS ABORTED AND THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REPLACED THE EPR INDICATOR WITH A SERVICEABLE UNIT. SYSTEM OPERATION RETURNED TO NORMAL.

Part: FUSE — BLOWN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FORWARD CABIN FLOOR PROXIMITY EMERGENCY LIGHTS INOPERATIVE. REPLACED FUSE IN RIGHT FORWARD EMERGENCY EXIT DOOR BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: FUSE — FAILED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND EMERGENCY PROXIMITY LIGHTS AT GALLEY DOOR AND FIRST CLASS CABIN INOPERATIVE. REPLACED FUSE, OPERATIONAL CHECK NORMAL.

Part: FUSE — BLOWN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS AT GALLEY DOOR AND FORWARD CABIN INOPERATIVE. REPLACED FUSE. OPERATIONAL CHECK NORMAL.

Part: FUSE — BLOWN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FORWARD GALLEY SERVICE DOOR EMERGENCY EXIT SIGN AND FORWARD CABIN FLOOR PROXIMITY EMERGENCY LIGHTS INOPERATIVE. REPLACED FUSE. OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FORWARD CABIN EMERGENCY LIGHTS INOPERATIVE. REPLACED FUSE AND BATTERY PACK AND OPERATIONAL CHECK NORMAL.

Part: BATTERIES — NOT SEATED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND OVERWING EXIT EMERGENCY LIGHTS INOPERATIVE. RESEATED BATTERIES IN PACKS, OPERATIONAL CHECK NORMAL.

Part: COMPRESSOR — STALLED (RT ENGINE)

RIGHT ENGINE COMPRESSOR STALL OCCURRED DURING TAKEOFF ROLL AT 70 KNOTS. ABORTED TAKEOFF AND RETURNED TO THE GATE. A .5 INCH LAYER OF SLUSH WAS REPORTED TO BE ON RUNWAY AT TIME OF INCIDENT. MAINTENANCE BORESCOPED 6TH, 7TH AND 13TH STAGE COMPRESSOR, ALL CHECKED NORMAL. ALSO, ENGINE RUN CHECKED GOOD.

Part: FUSE — BLOWN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FORWARD SERVICE DOOR AND FORWARD CABIN FLOOR PROXIMITY EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES WITH NO HELP. REPLACED BLOWN FUSE AND OPERATIONAL CHECK NORMAL.

Part: RELAY — INOPERATIVE (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY PACK WITH NO HELP. REPLACED RELAY R2-213 AND OPERATIONAL CHECK NORMAL.

Part: STRUT — REQD SERVICE (NLG)

AFTER TAKEOFF, LANDING GEAR HANDLE WOULD NOT RAISE DURING GEAR RETRACTION AND AIRCRAFT FAILED TO SHIFT FROM GROUND MODE TO FLIGHT MODE. FLIGHT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE LANDING GEAR STRUT LOW ON FLUID. RESERVICED STRUT TO PROPER LEVELS AND OPERATIONAL CHECK NORMAL ON GEAR SWING.

Part: LONGERON — CORRODED (FS 996)

DURING L-CHECK, FOUND CORROSION IN THE LONGERON 23L END FITTING AT FS 996. REPLACED FITTING PER SRM 51-30.

Part: TRANSCEIVER — FAILED (RADAR)

DURING CRUISE, WEATHER RADAR RETURNS WERE INTERMITTENT. THE AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. REPLACED RADAR TRANSCEIVER. OPERATIONAL TEST GOOD.

Part: ANGLE — CRACKED (FS 1019)

DURING LINE CHECK, FOUND A CRACK IN THE RIGHT PYLON LOWER ATTACH ANGLE AT FS 1019. REPAIRED PER EA 99-98960.

Part: FUEL DOOR — OPEN (RIGHT WING)

SLAT DISAGREEMENT LIGHT REMAINED ON AFTER FLAP/SLAT RETRACTION DURING INITIAL CLIMBOUT. FLIGHT RETURNED TO MEM AND LANDED WITHOUT INCIDENT. FOUND FUEL PANEL DOOR OPEN WHICH INTERFERRED WITH SLAT TRAVEL. ALSO, FOUND FUEL CAP MISSING. REPLACED CAP, SLAT OPERATION WAS NORMAL ON GROUND CHECK. AIRCRAFT RETURNED TO SERVICE.

Part: OIL FILTER — DIRTY (NR 2 ENGINE)

THE NR 2 ENGINE OIL FILTER CLOG WARNING LIGHT ILLUMINATED ON TAKEOFF ROLL, TAKEOFF WAS ABORTED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE REMOVED THE MAIN OIL FILTER TO INSPECT FOR ABNORMAL DEBRIS, NONE FOUND. A NEW OIL FILTER WAS INSTALLED. DURING SUBSEQUENT RUNUP, SYSTEM OPERATION WAS NORMAL. THE AIRCRAFT RETURNED TO SERVICE.

Part: FUEL DOOR — JAMMED (RT WING)

SLATS WOULD NOT RETRACT FULLY AFTER TAKEOFF AND SLAT DISAGREEMENT LIGHT ILLUMINATED. RECYCLED SLATS TWICE WITH NO HELP. FLIGHT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. FOUND RIGHT WING FUELING PANEL DOOR JAMMED INTO SLAT. REPLACED DAMAGED LATCH ON FUEL PANEL AND SECURED DOOR. SLATS RETRACTED NORMALLY ON OPERATIONAL CHECK. AIRCRAFT RETURNED TO SERVICE.