N8932E

Part: BATTERY PACK — DISCHARGED (CABIN) · airframe 99,650 hrs · 90,417 cycles

DURING LINE CHECK, MAINTENANCE FOUND THAT THE RIGHT SIDE EXTERIOR EMERGENCY FLOOD LIGHT WAS INOPERATIVE. MAINTENANCE REPLACED THE BATTERY PACK AND THE LIGHTS RETURNED TO AN OPERATIONAL CONDITION.

Part: REGULATOR VALVE — MALFUNCTIONED (CABIN PRESSURE) · airframe 98,070 hrs · 88,990 cycles

WHILE IN CRUISE FLIGHT AT FL350, THE CREW WAS ALERTED THAT THE CABIN WAS LOSING PRESSURIZATION. AN EMERGENCY WAS DECLARED AND A RAPID DESCENT INITIATED. AT FL300, THE CREW STARTED TO REGAIN CONTROL OF THE CABIN PRESSURE AND THE AIRCRAFT CONTINUED A NORMAL DESCENT TO 8000 FEET. THE FLIGHT COMPLETED ITS SCHEDULED ROUTING AND LANDED AT MSP WITHOUT FURTHER INCIDENT. MAINTENANCE ACCOMPLISHED TROUBLESHOOTING AND ULTIMATELY REPLACED THE AIR PRESSURE REGULATOR VALVE, CORRECTED NUMEROUS SMALL SYSTEM LEAKS, AND REPLACED A MISSING SEAL FROM THE CABIN PRESSURE RELIEF VALVE.

Part: SKIN — CRACKED (FUSELAGE) · airframe 96,927 hrs · 87,934 cycles

DURING "H" CHECK, FOUND CRACK IN SKIN AT UPPER CORNER OF 1L DOOR JAMB JUST FORWARD OF A PREVIOUS REPAIR. REPAIRED PER EA 99-208486.

Part: CHARGER — MALFUNCTIONED (E/E BAY)

DURING CRUISE FLIGHT THE CREW NOTED THAT THE AMBER "BATTERY CHARGER" ANNUNCIATOR LIGHT WAS ILLUMINATED. COM PROCEDURES WERE IMMEDIATELY COMPLIED WITH AND THE FLIGHT DIVERTED TO THE NEAREST SUITABLE AIRPORT. THE FLIGHT ATTENDANT INFORMED THE FLIGHT CREW THAT AN "ACRID ODOR” WAS DETECTED BY THE FORWARD ENTRY DOOR JUMPSEAT DURING THIS TIME. THE LANDING AT ORD WAS NORMAL AND WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED THE BATTERY CHARGER AND THE BATTERIES. THE ODOR WAS INVESTIGATED AND NO OTHER SOURCE COULD BE DETERMINED. NO EVIDENCE OF FIRE WAS FOUND. THE AIRCRAFT HAS RETURNED TO SERVICE.

Part: OUTFLOW VALVE — LEAKING (CABIN PRESSURE) · airframe 94,118 hrs · 85,324 cycles

AT FL310, WITH POWER AT CRUISE SETTING AND AIRFOIL ANTI-ICE ON, THE RED "CABIN PRESS" WARNING LIGHT ILLUMINATED. CABIN WAS JUST ABOVE 10,000 FEET AND CLIMBING AT 800-900 FPM. CREW COMPLIED WITH COM AND THE RED BORDERED CHECKLIST BUT COULD NOT REGAIN CONTROL OF CABIN PRESSURE. AN EMERGENCY DESCENT WAS PERFORMED AND THE AIRCRAFT LANDED UNEVENTFULLY AT DTW. MAINTENANCE DID BITE OF THE PRESSURE CONTROLLERS, FOUND PREVIOUS FAULTS, AND REPLACED THE OUTFLOW VALVE. THE AIRCRAFT HAS RETURNED TO SERVICE.

Part: OUTFLOW VALVE — LEAKING (CABIN PRESSURE) · airframe 94,118 hrs · 85,324 cycles

AT FL310, WITH POWER AT CRUISE SETTING AND AIRFOIL ANTI-ICE ON, THE RED "CABIN PRESS" WARNING LIGHT ILLUMINATED. CABIN WAS JUST ABOVE 10,000 FEET AND CLIMBING AT 800-900 FPM. CREW COMPLIED WITH COM AND THE RED BORDERED CHECKLIST BUT COULD NOT REGAIN CONTROL OF CABIN PRESSURE. AN EMERGENCY DESCENT WAS PERFORMED AND THE AIRCRAFT LANDED UNEVENTFULLY AT DTW. MAINTENANCE DID BITE OF THE PRESSURE CONTROLLERS, FOUND PREVIOUS FAULTS, AND REPLACED THE OUTFLOW VALVE. THE AIRCRAFT HAS RETURNED TO SERVICE.

Part: COALESCER BAG — DIRTY (LEFT) · airframe 94,063 hrs · 85,271 cycles

DURING INITIAL DESCENT AT ABOUT 1000 FPM, THE CABIN BEGAN A RAPID CLIMB OF OVER 1500 FPM. COM PROCEDURES WERE COMPLIED WITH BUT DID NOT HELP. WITH CABIN ALTITUDE CLIMBING ABOVE 10,000, CREW DONNED OXYGEN MASKS, DECLARED AN EMERGENCY, AND PERFORMED A RAPID DESCENT. ONCE AIRCRAFT WAS LEVEL AT 9000 FT AND ADDED POWER SETTINGS, THE CABIN PRESSURE RETURNED TO NORMAL CONTROL AND MADE A NORMAL DESCENT UNTIL LANDING. MAINTENANCE COULD NOT FIND ANY POSITIVE FAULT WITH THE SYSTEM AND REPLACED THE COALESCER BAGS.

Part: TUBE — FAILED (LEFT ENGINE) · airframe 93,948 hrs · 85,160 cycles

DURING THE TAKEOFF ROLL, THE NR 1 ENGINE EPR INDICATION ROLLED BACK. THE TAKEOFF WAS ABORTED AT 120KTS. MAINTENANCE FOUND A FAILED TUBE IN THE PT7 MANIFOLD. THE TUBE WAS REPLACED AND THE LEAK CHECK WAS GOOD.

Part: SUPPORT ANGLE — CRACKED (FUSELAGE) · airframe 89,707 hrs · 92,399 cycles

DURING M-CHECK FOUND CRACK IN SLANTED PRESSURE PANEL SUPPORT ANGLE AT BS 699. REPAIRED PER EA 99-198726.

Part: LONGERON — CRACKED (FUSELAGE) · airframe 91,897 hrs · 83,185 cycles

DURING M-CHECK FOUND CRACKS IN LONGERON 28R BS 756. REPAIRED PER EA 96-198627.

Part: TERMINAL — DAMAGED (COCKPIT) · airframe 87,736 hrs · 79,459 cycles

CREW REPORTED SMOKE IN COCKPIT. COMPLIED WITH COM PROCEDURES AND DONNED OXYGEN MASK. SMOKE ORIGINATED BEHIND OVERHEAD PANEL AND DISSIPATED SHORTLY AFTER THE WINDSHIELD HEAT WAS TURNED OFF SO IT LASTED ONLY 15 SECONDS. LANDING WAS UNEVENTFUL AND THE EMERGENCY WAS CANCELED AFTER TOUCHDOWN. MAINTENANCE FOUND THE LUGS AT TERMINAL STRIP S3-57 CHARRED WITH HEAT DAMAGE. REPLACED THE TERMINAL STRIP AND THE WINDSHIELD HEAT CONTROLLER. ALSO CHECKED THE WIRING RELATED TO THE SYSTEM. THE BATTERY CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: PANEL — FAILED (CABIN PRESSURE) · airframe 85,097 hrs · 77,146 cycles

(VHP) AIRCRAFT LOST CABIN PRESSURE AT 29,000 FEET. CREW PERFORMED AN EMERGENCY DESCENT. ACCOMPLISHED COM PROCEDURES. FLIGHT CONTINUED TO GRR AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED BITE AND NO FAULTS WERE FOUND. REPLACED THE AIR DATA COMPUTER AND PRESSURIZATION SELECTOR PANEL. AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — INOPERATIVE (TAIL) · airframe 84,790 hrs · 76,862 cycles

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

Part: BATTERY PACK — INOPERATIVE (CABIN) · airframe 84,779 hrs · 76,847 cycles

PILOT REPORTED THE AIRCRAFT EGRESS ROW EMERGENCY LIGHTS WERE INOPERATIVE. MAINTENANCE REPLACED EMERGENCY LIGHT POWER PACKS AT 11DEF, 12DEF, 11AB, 12AB, AND AT AFT FLIGHT ATTENDANT PANEL.

Part: DOOR FRAME — CRACKED (CARGO DOOR)

DURING L CHECK, FOUND FORWARD CARGO DOOR CUTOUT AFT EDGE CRACKED AND GOUGED. REPAIRED PER EA 99-169362.

Part: RETRACT MECH — OUT OF ADJUST (NLG)

NOSE LANDING GEAR WOULD NOT EXTEND ON LANDING INTO IAD. CREW RECYCLED GEAR AND NOSE GEAR EXTENDED NORMALLY WITH PROPER INDICATIONS. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND NOSE GEAR OVERCENTER LINKAGE AND LEFT DOOR OUT OF RIG. ADJUSTED LINKAGE AND DOOR, OPERATIONAL CHECK NORMAL ON TEST FLIGHT.

Part: BUNGEE CYLINDER — FAILED (NLG)

DURING APPROACH, NOSE LANDING GEAR GREEN LIGHT DID NOT ILLUMINATE AFTER GEAR EXTENSION. FLIGHT CREW UTILIZED EMERGENCY GEAR EXTENSION PROCEDURES AND CONFIRMED THROUGH PEEP HOLE THAT GEAR WAS DOWN AND LOCKED. EMERGENCY EQUIPMENT WAS REQUESTED ON STANDBY AS A PRECAUTION. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NOSE GEAR BUNGEE CYLINDER. OPERATIONAL CHECK NORMAL ON GEAR CYCLE.

Part: RETRACT MECH — LACK OF LUBE (NLG)

NOSE LANDING GEAR GREEN LIGHT DID NOT ILLUMINATE AFTER GEAR EXTENSION. CREW UTILIZED EMERGENCY GEAR EXTENSION PROCEDURES AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE COULD NOT DUPLICATE DISCREPANCY ON GROUND. LUBRICATED NOSE GEAR ASSEMBLY.

Part: FLOORBEAM — CORRODED (BS 937)

DURING M-CHECK, FOUND CORROSION ON AFT CARGO COMPARTMENT FLOORBEAM FS 937, RBL 16. REPAIRED PER EA 99-157312.

Part: FRAME — CORRODED (BS 579)

DURING M CHECK, FOUND CORROSION ON AFT SIDE OF FS 579 FRAME AT LONGERON 17L. REPAIRED PER EA 99-156478.

Part: SKIN — CRACKED (CARGO DOORWAY)

DURING M CHECK, FOUND A CRACK IN THE FUSELAGE SKIN AT THE UPPER FORWARD CORNER OF THE FORWARD CARGO DOOR CUTOUT. REPAIRED PER EA 99-123570.

Part: ANGLE — CORRODED (BS 1003-1038)

DURING M-CHECK, FOUND CORROSION ON LEFT INTERCOSTAL MOUNT T-ANGLE IN THE APU BAY FS 1003 TO 1038. REPAIRED PER EA 99-156160.

Part: DOUBLER — CORRODED (BS 83)

DURING M CHECK, FOUND CORROSION DOUBLER (P/N 5912350-20) AT STR 83, RBL 10. REPAIRED PER EA 99-156261.

Part: DOUBLER — CRACKED (BS 82)

DURING M CHECK, FOUND CRACK IN DOUBLER (P/N 5912350-19) AT STR 82, LBL 10. REPAIRED DOUBLER PER EA 99-156261.

Part: FITTING — CORRODED (BS 998)

DURING M-CHECK, FOUND CORROSION ON END FITTING FOR LONGERON 22L AT FS 998. REPLACED FITTING (P/N 4912515-1) PER SRM 53-01.

Part: FRAME — CORRODED (BS 313)

DURING M CHECK, CORROSION AROUND FASTENERS IN FRAME 313 AND LONGERON 28R. REPAIRED PER EA 99-156259.

Part: FITTING — CORRODED (BS 945)

DURING M-CHECK, FOUND CORROSION ON END FITTING FOR LONGERON 21R AT FS 945. REPLACED FITTING (P/N 4912798-501) PER SRM 53-01.

Part: BULKHEAD CHORD — CORRODED (BS 110)

DURING M CHECK, FOUND CORROSION ON UPPER SURFACE OF LOWER FORWARD FLANGE OF FS 110 BULKHEAD T CHORD OUTBOARD OF RIGHT TRUNNION SUPPORT BEAM IN THE NOSE LANDING GEAR WHEEL WELL. REPAIRED PER EA 99-156582.

Part: POWER SUPPLY — INOPERATIVE (LT NACELLE)

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

Part: ENGINE — MALFUNCTIONED (LEFT)

DURING TAKEOFF ROLL, THE LEFT ENGINE WOULD NOT REACH TARGET EPR. CREW ABORTED TAKEOFF AND RETURNED TO GATE. MAINTENANCE PERFORMED OPERATIONAL CHECK OF THE LEFT ENGINE, ALL PARAMETERS WERE NORMAL. PROBLEM COULD NOT BE DUPLICATED.

Part: WIRE — BROKEN (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND FLOOR PROXIMITY EMERGENCY LIGHTS AT ROWS 8, 9, AND 10 INOPERATIVE. REPAIRED BROKEN WIRE, OPERATIONAL CHECK NORMAL.

Part: CONTROL CABLE — BINDING (NLG DOOR)

NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR RETRACTION. FLIGHT WAS RETURNED TO STL AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND LEFT NOSE GEAR DOOR FOLLOW-UP CABLE BINDING. ADJUSTED BOLT AT DOOR END, RESAFETIED AND LUBRICATED NOSE GEAR. OPERATIONAL CHECK NORMAL ON GEAR CYCLE. AIRCRAFT RETURNED TO SERVICE.

Part: BATTERIES — DISCHARGED (CABIN)

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

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT FLIGHT ATTENDANT FLASHLIGHT BATTERY DEAD. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND RIGHT AFT OVERWING EXIT LIGHT INOPERATIVE. REPLACED BATTERY PACK. OPERATIONAL CHECK OK. LEFT FORWARD OVERWING CHANGED TO RIGHT AFT OVERWING.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND LEFT FORWARD OVERWING EXIT LIGHT INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK OK.

Part: BATTERIES — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND TWO OVERWING EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERIES, OPERATION CHECKS GOOD.

Part: BATTERY PACK — DISCHARGED (CABIN)

FLIGHT ATTENDANT REPORTED AFT CABIN SECTION OF OVERHEAD EMERGENCY LIGHTS INOPERATIVE. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: HOSE — FAILED (LT PACK)

LOSS OF PRESSURIZATION OCCURRED AT 27,000 FEET DURING DESCENT. CABIN ALTITUDE ROSE TO 16,000 FEET AND OXYGEN MASKS WERE DEPLOYED THROUGHOUT THE CABIN. NORMAL CABIN PRESSURE WAS REGAINED TO 8,000 FEET. FLIGHT CONTINUED AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE REPLACED BLOWN NOSE AT LEFT PACK TURBINE INLET AND RESTORED PASSENGER OXYGEN SYSTEM, OPERATIONAL CHECK NORMAL.

Part: CONTROLLER — MALFUNCTIONED (CABIN)

LOSS OF CABIN PRESSURE OCCURRED DURING CRUISE FLIGHT AT 35,000 FEET. CREW EXECUTED EMERGENCY DESCENT AND FLIGHT WAS CONTINUED TO DESTINATION. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED CABIN PRESSURE CONTROLLER, OPERATIONAL CHECK NORMAL.

Part: FLOW CONTL VLV — MALFUNCTIONED (CABIN)

LOSS OF CABIN PRESSURE OCCURRED DURING CRUISE FLIGHT AT 33,000 FEET. CREW EXECUTED EMERGENCY DESCENT TO 16,000 FEET AND CABIN PRESSURE WAS REGAINED. FLIGHT CONTINUED TO DESTINATION AT CRUISE FLIGHT OF 24,000 FEET AND LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE INSPECTED FOR LEAKS AND CHECKED AUTO PRESSURIZATION SYSTEM. NO LEAKS OR PROBLEMS COULD BE FOUND. REPLACED THE RIGHT FLOW CONTROL VALVE AS A PRECAUTION, OPERATIONAL CHECK NORMAL.

Part: PULLEY — BROKEN (NR 4 SLAT)

DURING APPROACH INTO TYS, SLAT DISAGREEMENT LIGHT ILLUMINATED AFTER SLATS WERE EXTENDED. CREW DECLARED AN EMERGENCY AND AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED NR 1 SLAT ASSEMBLY AND BROKEN PULLEY TO NR 4 SLAT. OPERATIONAL CHECK NORMAL. AIRCRAFT RETURNED TO SERVICE.

Part: UNSAFE LIGHT — ILLUMINATED (NLG)

DURING APPROACH, NOSE LANDING GEAR UNSAFE LIGHT REMAINED ON AFTER GEAR EXTENSION. CREW RECYCLED GEAR AND NORMAL INDICATIONS WERE ACHIEVED. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE CYCLED NOSE GEAR SEVERAL TIMES ON GROUND. DISCREPANCY COULD NOT BE DUPLICATED.

Part: BATTERIES — DISCHARGED (CABIN)

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

Part: T-DUCT — FAILED (LT TE SLAT)

DURING APPROACH, SLAT DISAGREEMENT LIGHT ILLUMINATED ACCOMPANIED BY SLIGHT ROLL TO THE RIGHT. CREW RETRACTED SLATS AND ACCOMPLISHED AN UNEVENTFUL LANDING USING FLAPS ONLY. MAINTENANCE REPLACED THE LEFT SLAT T-DUCT, OPERATIONAL CHECK NORMAL.

Part: BATTERIES — DISCHARGED (CABIN)

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

Part: T-DUCT — LACK OF LUBE (RT LE FLAPS)

RIGHT SLAT FAILED TO EXTEND DURING APPROACH. SUCCESSFUL LANDING WAS ACCOMPLISHED USING FLAPS ONLY. MAINTENANCE INSPECTED T-DUCTS, SLAT TRACKS AND PULLEYS, ALL WERE FOUND TO BE NORMAL. LUBED T-DUCTS AS A PRECAUTION, DEFERRED TO NEXT OVERNIGHT MAINTENANCE AN ALIGNMENT OF BOTH T-DUCTS PER MM 27-80-0 PG 101.

Part: DOWNLOCK SWITCH — MALFUNCTIONED (NLG)

DURING APPROACH, NOSE LANDING GEAR GREEN LIGHT DID NOT ILLUMNATE AFTER GEAR EXTENSION. RECYCLED GEAR THREE TIMES BEFORE NORMAL INDICATIONS WERE ACHIEVED. AIRCRAFT LANDED WITHOUT INCIDENT. FERRIED AIRCRAFT FROM GRR TO DTW. MAINTENANCE REPLACED NOSE GEAR DOWNLOCK SWITCH, OPERATIONAL CHECK NORMAL.

Part: CLAMP — BROKEN (RT ACM)

LOSS OF CABIN PRESSURIZATION OCCURRED AT 25,000 FEET EN ROUTE. OXYGEN MASKS WERE DEPLOYED THROUGHOUT CABIN AND DESCENT WAS MADE TO 10,000 FEET. FLIGHT DIVERTED TO DTW AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND BROKEN CLAMP AND DUCT LEAK AT RIGHT AIR CYCLE MACHINE TURBINE DISCHARGE. REPLACED CLAMP, OPERATIONAL CHECK NORMAL.

Part: BULKHEAD FITTING — CRACKED (BS 756)

DURING H-CHECK, FOUND CRACKS IN FS 756 CENTER LINE BULKHEAD FITTINGS: SECOND, THIRD AND FOURTH FROM THE TOP. REPLACED ALL FITTINGS (P/N 9958212-37) PER SRM 51-30-5.

Part: LIGHT — INOPERATIVE (LT NACELLE)

DURING LINE MAINTENANCE INSPECTION, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. PROBLEM COULD NOT BE DUPLICATED.

Part: POWER SUPPLY — MALFUNCTIONED (LEFT NACELLE)

DURING PERIODIC CHECK, FOUND LEFT NACELLE EMERGENCY LIGHT INOPERATIVE. REPLACED BATTERY POWER SUPPLY, OPERATIONAL CHECK NORMAL.

Part: BATTERY PACK — MALFUNCTIONED (FWD F/A PANEL)

DURING PERIODIC CHECK, FOUND EMERGENCY LIGHT SWITCH AT FORWARD FLIGHT ATTENDANT PANEL INTERMITTENT BETWEEN ARM AND ON POSITION. REPLACED BATTERY PACK, OPERATIONAL CHECK NORMAL.

Part: LONGERON — CORRODED (BS 905)

DURING M-CHECK, FOUND CORROSION ON LONGERON 19L AT FS 905. REPAIRED LONGERON PER EA DC9-53-028.

Part: FITTING — BROKEN (BS 889)

DURING M-CHECK, FOUND THE EAR BROKEN OFF OF THE FS 889 FRAME TO FLOOR BEAM ATTACH FITTING BENEATH THE LEFT CUSP WEB. REPLACED FITTING (P/N 3919749-1) PER SRM 51-10-2.

Part: DOOR — OUT OF ADJUST (EMERGENCY EXITS)

DURING M-CHECK, FOUND THAT INADEQUATE FORCE WAS REQUIRED TO OPERATE ALL FOUR OVERWING EMERGENCY EXIT DOORS. ADJUSTED DOORS PER MM 52-21-0.

Part: FLOOR BEAM — CRACKED (BS 237)

DURING M-CHECK, FOUND A CRACK IN THE FS 237 FLOOR BEAM AT LBL 27. REPAIRED BEAM PER EA DC9-53-025.

Part: FITTING — CORRODED (FS 229)

DURING M-CHECK, FOUND CORROSION IN THE RIGHT CUSP FITTING AT FS 229, LONGERON 18R. REPLACED FITTING (P/N 4912772-504N) PER SRM 51-30-1.

Part: BATTERY — DISCHARGED (CABIN)

DURING LINE MAINTENANCE INSPECTION, FOUND AFT OVERWING EMERGENCY EXIT SIGN LIGHTS INOPERATIVE. REPLACED BATTERY IN BATTERY PACK. OPERATIONAL CHECK NORMAL.

Part: VENT VALVES — OPEN (WING FUEL TANKS)

FUEL BEGAN VENTING FROM THE RIGHT WING AFTER TAKEOFF. THE LEFT FUEL QUANTITY DROPPED 800 LBS BELOW RIGHT SIDE. BOTH FUEL QUANTITIES WERE BELOW 8,800 LBS. FLIGHT RETURNED TO YUL AND LANDED WITHOUT INCIDENT. MAINTENANCE RESET CLIMB VENT VALVES.

Part: COALESCER BAG — DIRTY (CABIN)

DURING CRUISE, THE CABIN PRESSURE WARNING LIGHT ILLUMINATED AND CABIN PRESSURE BEGAN TO CLIMB. DESCENDED TO 10,000 FEET AND THE LIGHT EXTINGUISHED AND AIRCRAFT MAINTAINED NORMAL CABIN PRESSURE. AIRCRAFT DIVERTED TO DFW AND LANDED WITHOUT INCIDENT. REPLACED BOTH WATER SEPARATOR BAGS. OPERATIONAL CHECK OF BOTH AIR CONDITIONING SYSTEMS WAS GOOD.

Part: OXYGEN REG — LEAKING (LT COCKPIT)

DURING CRUISE, CREW OXYGEN DEPLETED. THE AIRCRAFT DIVERTED TO STL AND LANDED WITHOUT INCIDENT. FOUND CAPTAIN'S OXYGEN REGULATOR LEAKING. REPLACED REGULATOR AND OXYGEN BOTTLE. OPERATIONAL CHECK GOOD.

Part: DOOR — NOT LATCHED (ACCESSORY COMPT)

DURING CLIMB, THE FORWARD ACCESSORY COMPARTMENT DOOR LIGHT ILLUMINATED AND AIRCRAFT WOULD NOT PRESSURIZE. AIRCRAFT RETURNED TO DTW AND LANDED WITHOUT INCIDENT. FOUND FORWARD ACCESSORY COMPARTMENT DOOR OPEN. SECURED DOOR. OPERATIONAL CHECK GOOD.

Part: EEL SOCKET — BROKEN (CABIN)

DURING LINE CHECK, FOUND FORWARD AISLE EMERGENCY LIGHT AT STATION 232 INOPERATIVE. REPLACED BROKEN BULB SOCKETS AND OPERATIONAL CHECK GOOD.

Part: BATTERY PACK — DISCHARGED (CABIN)

DURING LINE CHECK, FOUND OVERHEAD EMERGENCY LIGHTS FROM ROWS 6 THROUGH 12 INOPERATIVE. REPLACED BATTERIES, OPERATIONAL CHECK GOOD.

Part: SKIN — CORRODED (FS 332)

DURING LINE CHECK, FOUND CORROSION AND SHEARED FASTENERS IN THE FUSELAGE SKIN FS 332 AT LONGERON 29L TO 30. REPAIRED PER EA 99-98462.

Part: ANGLE — CRACKED (FS 1096)

DURING PERIODIC CHECK, FOUND CRACK IN VERTICAL STABILIZER TO FUSELAGE ATTACH ANGLE FS 1096 RIGHT SIDE. REPAIRED PER EA 99-097062, FIG.1.

Part: RELEASE MECH — OUT OF ADJUST (TAILCONE)

DURING PERIODIC CHECK FOUND THAT INADEQUATE FORCE WAS REQUIRED TO RELEASE THE HANDLE FROM THE CLIPS AND DROP THE TAILCONE. ADJUSTED THE LATCHES AND THE CLIPS. CHECKED OK.

Part: FITTING — CRACKED (FS 579)

DURING PERIODIC CHECK FOUND CRACK IN LONGERON 27L END FITTING AT FS 579. REPLACED PER SRM 51-30-0.

Part: FITTING — CORRODED (FS 598)

DURING PERIODIC CHECK FOUND CORROSION IN LONGERON 30 END FITTING AT FS 598. REPLACED PER SRM 51-30-0.

Part: FITTING — CORRODED (FS 604)

DURING PERIODIC CHECK FOUND CORROSION IN LONGERON 29R END FITTING AT FS 604. REPLACED PER SRM 51-30-3.

Part: FITTING — CORRODED (FS 756)

DURING PERIODIC CHECK FOUND CORROSION IN THE RIGHT SIDE KEEL FITTING AT FS 756. REPLACED FITTING PER 51-30-0 AND SB 53-75.

Part: FITTING — CRACKED (FS 984)

DURING PERIODIC CHECK FOUND CRACK IN LONGERON 28R END FITTING AT FS 984. REPLACED FITTING PER SRM 51-30-0.

Part: DOUBLER — BROKEN (FS 1084)

DURING PERIODIC CHECK, FOUND BROKEN DOUBLER AT FS 1084, LONGERON 18L. REPAIRED PER EA 99-097155.

Part: FITTING — CRACKED (FS 996)

DURING PERIODIC CHECK FOUND CRACK IN FLOOR SUPPORT FITTING, LONGERON 28R AT FS 996. REPLACED FITTING PER SRM 51-30-0.

Part: FITTING — CRACKED (FS 604)

DURING PERIODIC CHECK, FOUND CRACKED FITTING AT FS 604 AT LONGERON 24R. REPLACED FITTING PER SRM 51-30-2.

Part: LATCH BOLTS — LOOSE (LT MLG DOOR)

DURING APPROACH INTO MSP, GEAR DOOR OPEN LIGHT REMAINED ON AFTER GEAR WAS EXTENDED. EMERGENCY GEAR EXTENSION PROCEDURES WERE UTILIZED AND AIRCRAFT LANDED WITHOUT INCIDENT. EMERGENCY EQUIPMENT WAS CALLED OUT ON STANDBY AS A PRECAUTION. FOUND LEFT MAIN INBOARD GEAR DOOR LATCH ROLLER MOUNTING BOLTS LOOSE. TIGHTENED BOLTS. ALSO, REPLACED THE RIGHT INBOARD GEAR DOOR DUE TO DAMAGE SUFFERED ON LANDING. OPERATIONAL CHECK OK ON GEAR SWING. AIRCRAFT RETURNED TO SERVICE.