N275SK

Part: CONNECTOR — DISCONNECTED (CABIN) · airframe 29,562 hrs · 24,229 cycles

DURING INSPECTION, THE FLOOR PROXIMITY STRIP LIGHTS AT ROW 12 AND AFT WERE FOUND TO BE INOPERATIVE. MAINTENANCE RE-SCURED CONNECTOR P8532 TO THE NUMBER 6 INVERTER. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 29,562 hrs · 24,229 cycles

DURING INSPECTION, THE MAIN ENTRY DOOR EMERGENCY LIGHT ON THE DOOR HINGE WAS FOUND TO BE INOPERATIVE. THE MAIN ENTRY DOOR EMERGENCY LIGHT WAS RELAMPED. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOETD.

Part: UNKNOWN — ODOR (CABIN) · airframe 28,476 hrs · 23,262 cycles

CREW REPORTED BURNING ODOR AT 22,000 FT. ODOR LASTED FOR APPROXIMATELY 15 SECONDS AND THEN DISSIPATED. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. MAINTENANCE PERFORMED FAULT ISOLATION MANUAL TASK 72-00-00-810-814. NO DEFECTS WERE NOTED AT THAT TIME.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 26,997 hrs · 21,988 cycles

DURING INSPECTION, THE AFT FLOOR PROXIMITY EMERGENCY LIGHT STRIP WAS FOUND TO BE INOPERATIVE. MAINTENANCE CLEARED THE DEFERRAL ON 11/13/2011 BY REPLACING THE EMERGENCY LIGHT STRIP AT ROW 8. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: CHECK VALVE — BROKEN (CABIN PRESSURE) · airframe 26,795 hrs · 21,814 cycles

CREW REPORTED, UNABLE TO PRESSURIZE THE AIRCRAFT IN AUTO AND MANUAL MODES DURING FLIGHT. RETURNED TO KBDL AND LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE GROUND AIR CONNECTION CHECK VALVE BROKEN. LOCKED THE VALVES OPEN AND DEFERRED THE VALVE. CMH MAINTENANCE CLEARED THE DEFERRAL LATER THAT DAY BY REPLACING GROUND AIR CHECK VALVE. OPERATIONAL AND PRESSURIZATION CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: BEAM — CORRODED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE CARGO DOOR CUT-OUT LOWER BEAM. MAINTENANCE REPLACED THE CARGO DOOR CUT-OUT LOWER BEAM IN ACCORDANCE WITH SRM 51-40-02.

Part: FRAME — CRACKED (ZONE 100) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, A CRACK WAS FOUND ON THE CARGO FRAME AT FR. 66 AT STRINGER 16L. MAINTENANCE REPAIRED THE CARGO FRAME 66 AT STRINGER 16L IN ACCORDANCE WITH ETD 2011-145-102244.

Part: SHEAR PLATE — CORRODED (ZONE 100) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE AFT AND FORWARD L-SHAPE SHEAR CLIP. MAINTENANCE REPAIRED THE CARGO DOOR FORWARD AND AFT :-SHAPE SHEAR CLIPS IN ACCORDANCE WITH ETD 2011-145-10245.

Part: FRAME — CRACKED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, A CRACK WAS FOUND ON THE LEFT AND RIGHT FRAME 10 UNDER THE SIDE COCKPIT WINDOW. THE LEFT (PN:145-02-409-001) AND RIGHT (PN: 145-02-409-001) FRAME 10 UNDER THE SIDE COCKPIT WINDOW WERE REPLACED IN ACCORDANCE WITH SRM 51-40-02.

Part: FITTING — CRACKED (ELEVATOR) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, A CRACK WAS FOUND ON THE MOLDING UNDER THE LEFT ELEVATOR ACCESS PANEL 335HB. MAINTENANCE REPLACED THE MOLDING UNDER THE LEFT ELEVATOR ACCESS PANEL 335HB IN ACCORDANCE WITH SRM 51-40-02.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE LEFT OUTBOARD SEAT TRACK 5. MAINTENANCE REPLACED THE LEFT OUTBOARD SEAT TRACK 5 WITH NO FURTHER DEFECTS NOTED.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE RIGHT INBOARD SEAT TRACK 2. MAINTENANCE REPLACED THE RIGHT INBOARD SEAT TRACK 2 WITH NO FURTHER DEFECTS NOTED.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE LEFT INBOARD SEAT TRACK 1. MAINTENANCE REPLACED THE LEFT INBOARD SEAT TRACK 1 WITH NO FURTHER DEFECTS NOTED.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION CORROSION WAS FOUND ON THE RIGHT INBOARD SEAT TRACK 1. MAINTENANCE REPLACED THE RIGHT INBOARD SEAT TRACK 1 WITH NO FURTHER DEFECTS NOTED.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 26,519 hrs · 21,567 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE RIGHT OUTBOARD SEAT TRACK 4. MAINTENANCE REPLACED THE RIGHT OUTBOARD SEAT TRACK 4 WITH NO FURTHER DEFECTS NOTED.

Part: DUCT — CRACKED (BLEED AIR SYS) · airframe 24,298 hrs · 19,789 cycles

AFTER TAKEOFF THE CREW REPORTED A BLEED 1 LEAK INDICATION AND RETURNED TO FIELD WHERE THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE FOUND THE DUCT GOING TO THE PACK VALVE CRACKED. THE DUCT WAS REPLACED AND NO FURTHER LEAKS WERE FOUND.

Part: DUCT — CRACKED (BLEED AIR SYS) · airframe 23,905 hrs · 19,492 cycles

WHILE CLIMBING THROUGH 8,000FT, A BLEED 1 LEAK MESSAGE WAS DISPLAYED ON EICAS. THE CREW FOLLOWED THE QRH AND RETURNED TO IAH AND LANDED WITHOUT INCIDENT. WHILE INSPECTING THE BLEED 1 SYSTEM FOR LEAKS, MAINTENANCE FOUND THE T DUCT FROM THE BLEED VALVE TO APU CRACKED AND BLEED JOINT 9 LEAKING. THE T DUCT WAS REPLACED ALONG WITH THE O-RING AT JOINT 9.

Part: O-RING — DAMAGED (BLEED SYSTEM) · airframe 23,898 hrs · 19,486 cycles

CREW REPORTED THAT WHILE CLIMBING THROUGH 10,000 FT, RECEIVED A BLEED 1 LEAK MESSAGE ON EICAS. THE QRH WAS FOLLOWED, BUT THE MESSAGE WOULD NOT CLEAR. THE ACFT DIVERTED AND LANDED WITHOUT FURTHER INCIDENT. MX TROUBLESHOOT THE FAULT AND FOUND LEAKS AT JOINTS 3, 7, 17, 19, AND 25. THE O-RINGS WERE REPLACED AT JOINTS 3, 7, 17, 19, AND 25.

Part: CONNECTOR — DIRTY (BRAKE SYSTEM) · airframe 23,858 hrs · 19,453 cycles

CREW REPORTED THAT ON LANDING ROLL-OUT, THE BRAKES WERE INEFFECTIVE AT AROUND 120KTS, BUT ONCE THE AIRCRAFT WAS DOWN TO ABOUT 40KTS THE BRAKES OPERATED NORMALLY. THE AIRCRAFT TAXIED TO GATE WITHOUT INCIDENT. THE CREW ALSO REPORTED THAT THE BRAKE TEMPERATURES FOR THE OUTBOARD BRAKES NEVER ROSE WHILE THE INBOARD BRAKE TEMPERATURES WERE IN THE ORANGE BAND. MAINTENANCE CHECKED THE CMC FOR FAULTS AND FOUND A CMC MESSAGE OF "BRAKE PPTRAN3 FAIL". THE CONNECTOR FOR THE NR 3 PEDAL POSITION TRANSDUCER WAS CLEANED AND RESECURED AND RESET THE BCU WITH NO FURTHER DEFECTS NOTED DURING TAXI CHECKS.

Part: INVERTER — INOPERATIVE (CABIN) · airframe 22,676 hrs · 18,498 cycles

DURING INSPECTION THE LEFT OVERWING EMERGENCY EXIT LIGHT INVERTER WAS FOUND TO BE INOP. MAINTENANCE REPLACED THE INVERTER FOR THE LEFT OVERWING EXIT LIGHT AND THE SYSTEM OPERATED NORMALLY.

Part: INVERTER — INOPERATIVE (CABIN) · airframe 22,153 hrs · 18,086 cycles

DURING OVERNIGHT MAINTENANCE IT WAS FOUND THAT THE EMERGENCY FLOOR LIGHT STRIPS 2 & 3 WERE INOPERATIVE. TROUBLESHOOTING LED TO THE NR 3 INVERTER. IT WAS REPLACED AND ALL OPERATIONAL CHECKS WERE SATISFACTORY.

Part: DETECTOR — MALFUNCTIONED (NR 2) · airframe 22,072 hrs · 18,020 cycles

FLIGHT 5988, MSP TO CLE. AFTER CLIMBING THROUGH 11,000FT THE CREW SMELLED A THICK HEAVY ODOR OF BURNING WITH A SLIGHT TRACE OF SMOKE. IT WAS NOT IN THE CABIN, ONLY IN THE FLIGHT DECK. THE ODOR AND HAZE DISSIPATED IMMEDIATELY UPON REDUCING THE THROTTLES. THE AIRCRAFT RETURNED TO MSP AND LANDED WITHOUT INCIDENT. MAINTENANCE RAN BOTH ENGINES WITH NO LEAKS NOTED, OPS CHECKED AND INSPECTED BOTH PACKS WITH NO DEFECTS FOUND. THE COCKPIT AND FORWARD AVIONICS WIRING AND COMPONENTS WERE INSPECTED ALONG WITH THE RELAY PANELS. THE NR 2 ICE DETECTOR WAS FOUND TO BE INOP WITH A HEAVY ELECTRIC BURNING SMELL AT THE RECEPTACLE. THE NR 2 ICE DETECTOR WAS REPLACED WITH NO FURTHER DEFECTS NOTED.

Part: CONNECTOR — LOOSE (CABIN) · airframe 21,920 hrs · 17,894 cycles

DURING INSPECTION THE NR 2 & 3 FLOOR EMERGENCY LIGHT STRIPS WOULD NOT ILLUMINATE. THE CONNECTOR ON THE NR 3 INVERTER WAS RE-SECURED AND THE EMERGENCY LIGHTS OPERATED NORMALLY.

Part: SIGN — INOPERATIVE (EMERGENCY LIGHT) · airframe 20,729 hrs · 16,952 cycles

THE LT EMERGENCY EXIT ROW DOOR UPPER LT EMERGENCY EXIT SIGN WAS INOPERATIVE. THE SIGN OPS CHECKED GOOD WITH NO DEFECTS NOTED.

Part: BRAKE SYS — CONTAMINATED · airframe 20,280 hrs · 16,595 cycles

FLIGHT 5927, CLE TO MSP. AFTER TOUCH-DOWN DURING THE LANDING ROLL THE CREW REPORTED THAT THE BRAKE PEDALS ON THE CAPTAIN'S SIDE WENT TO THE FLOOR WITHOUT MUCH EFFECTIVENESS. THE BRAKES THEN BEGAN TO GRAB AND THE THRUST REVERSERS WERE USED TO SLOW THE AIRCRAFT. AT LOWER TAXI SPEEDS THE BRAKES WERE AFFECTIVE AND THE AIRCRAFT TAXIED TO THE GATE WITHOUT INCIDENT. MAINTENANCE BLED ALL FOUR BRAKES, AND TAXI CHECKED THE AIRCRAFT WITH THE CREW. THERE WERE NO FURTHER DEFECTS NOTED.

Part: CONTROLLER — FAULTY (MLG)

FLIGHT 5680, ATL TO CLE. AFTER TAKEOFF, THE GEAR WAS COMMANDED UP AND INDICATED THREE UP AND WHITE. THE CREW NOTICED A VIBRATION COMING FROM THE FLOOR TOWARDS THE NOSE OF THE AIRCRAFT. IT WAS DECIDED TO CYCLE THE GEAR TO SEE IF THE NOISE/VIBRATION CONTINUED. AFTER SELECTING THE GEAR TO THE DOWN POSITION AND GETTING A THREE GREEN INDICATION, A LG AIR/GND FAIL MESSAGE APPEARED ON EICAS. THE AIRCRAFT RETURNED TO ATL AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED ALL HARNESSES AND PROX SWITCHES WITH NO DEFECTS NOTED. THE LANDING GEAR LEVER WAS REPLACED AND THE AIRCRAFT PLACED ON JACKS AND THE GEAR WAS SWUNG APPROXIMATELY 8 TIMES WITH NO FURTHER DEFECTS. (A)

Part: WIRE HARNESS — SHORTED (NLG)

FLIGHT 5800, CLE TO ATL. THE CREW REPORTED THE NOSE LANDING GEAR DOORS DID NOT CLOSE ON GEAR RETRACTION. MAINTENANCE INSPECTED THE HARNESSES AND FOUND THE WO17 HARNESS WITH TWO WIRES SHORTING TOGETHER. THE HARNESS WAS REPLACED AND THE DOORS OPERATED NORMALLY. (S)

Part: PROXIMITY SENSOR — CRACKED (NLG)

FLIGHT 5977, BUF TO CLE. UPON INITIAL CLIMB, THE GEAR WAS RAISED AND THE CREW SUSPECTED THAT THE NOSE GEAR DOOR REMAINED OPEN DUE TO VIBRATIONS NEAR THE NOSE OF THE ACFT. EICAS SHOWED 3 WHITE UP INDICATIONS FOR THE GEAR. CREW RECYCLED THE GEAR WITH NO CHANGE. THE FLIGHT LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT AND REPLACED THE K0642 RELAY WHICH DID NOT CLEAR THE FAULT. THROUGH FURTHER TROUBLESHOOTING NOSE GEAR DOOR PROX SWITCH WAS CHANGED AND THE DOORS OPERATED NORMALLY. (S)

Part: FILTER ELEMENT — DIRTY (BLEED AIR SYS) · airframe 18,909 hrs · 15,471 cycles

CLE TO RDU - WHILE CLIMBING THROUGH 7,000 FT, THE CREW RECEIVED A BLEED 1 OVERTEMP MESSAGE. THE PROPER CHECK LISTS WERE FOLLOWED IN THE QRH AND IT WAS DECIDED TO DIVERT TO CMH. THE FLIGHT DIVERTED AND LANDED WITHOUT INCIDENT IN CMH. MAINTENANCE TROUBLESHOT THE BLEED SYSTEM AND REPLACED THE FAN AIR VALVE FILTER. AFTER RUNNING UP THE ENGINES AND CHECKING THE BLEED SYSTEM, THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: FCU — MALFUNCTIONED (TE FLAPS) · airframe 18,587 hrs · 15,216 cycles

PNS TO IAH - DURING CLIMB AT APPROXIMATELY 12,000 FEET, THE FLIGHT CREW RECEIVED A FLAP FAIL EICAS MESSAGE. THE QRH WAS FOLLOWED AND THE FLIGHT CONTINUED TO IAH WHERE IT LANDED WITHOUT INCIDENT. MAINTENANCE INTERROGATED THE CMC FOR FAULT CODES AND REPORTED AN FECU FAIL CODE. THE FECU WAS CHANGED AND THE FLAP SYSTEM OPERATED NORMALLY.

Part: WIRE HARNESS — DAMAGED (NLG) · airframe 18,287 hrs · 14,967 cycles

CLE TO DCA. ON APPROACH TO DCA, CREW RECEIVED A LANDING GEAR AIR/GROUND FAIL MESSAGE. THE CREW DECIDED TO DIVERT TO IAD DUE TO ITS LONGER RUNWAYS. THE AIRCRAFT LANDED WITHOUT INCIDENT AND TAXIED TO THE GATE UNEVENTFULLY. MAINTENANCE DOWNLOADED THE CMC AND INSPECTED THE NOSE LANDING GEAR PROX SWITCHES AND HARNESSES AND FOUND A NOSE LANDING GEAR PROX SWITCH WITH A BROKEN PIN LODGED IN THE HARNESS. THE PROX SWITCH AND HARNESS WERE BOTH REPLACED AND THE LANDING GEAR SYSTEM FUNCTIONED NORMALLY.

Part: PROXIMITY SENSOR — DIRTY (MLG) · airframe 17,251 hrs · 14,132 cycles

FLIGHT 3420 - IAH-BTR - DURING DESCENT BETWEEN 9,000 AND 10,000 FEET, THE FLAPS WERE SET TO 9 DEGREES AND THE LANDING GEAR WAS SELECTED DOWN. AFTER THREE GREEN WITH DOWN INDICATIONS, EICAS MESSAGE LG AIR/GND FAIL APPEARED. COMPLETED QRH. DECLARED AN EMERGENCY. LANDED WITHOUT INCIDENT. MAINTENANCE CLEANED THE WOW PROX SENSORS AND RESET THE SYSTEM.

Part: BATTERY — INOPERATIVE (EMERGENCY LIGHT) · airframe 13,261 hrs · 10,618 cycles

WHEN EMERGENCY SELECT LIGHT SWITCH IS POSITIONED IN ARM POSITION, FORWARD EMERGENCY LIGHTS ILLUMINATE. REMOVED AND REPLACED FORWARD EMERGENCY LIGHTS POWER SUPPLY AND OPS CHECK GOOD IAW EMB MM 33-50-00. OK FOR SERVICE.

Part: ROD — BROKEN (MLG DOOR) · airframe 12,719 hrs · 10,089 cycles

FLIGHT 3441 - LGA-IND - IN FLIGHT, A LOUD "WHIRRING" NOISE WAS COMING FROM AROUND ROW 15 ON THE LEFT SIDE OF THE AIRCRAFT. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE LEFT MAIN LANDING GEAR DOOR RODS BROKEN. MAINTENANCE REMOVED THE LEFT MAIN LANDING GEAR DOOR AND CDL'D.