N294SK

Part: TIRE — SEPARATED (RT MLG) · airframe 28,021 hrs · 26,519 cycles

CREW REPORTED DURING TAKEOFF THERE WAS A VIBRATION IN THE ACFT. ATC REPORTED THAT THE ACFT HAS LT TIRE DEBRIS ON THE RUNWAY. THE CREW DECLARED AN EMER & RETURNED TO FIELD. THE ACFT LANDED WITHOUT FURTHER INCIDENT. MX PERFORMED A TREAD SEPARATION INSPECTION. THE RT INBD TIRE WAS FOUND TO BE AT FAULT & WAS REPLACED.

Part: FITTING — CRACKED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, A CRACKED SHEAR CLIP WAS FOUND AT FRAME 10 UNDER THE RIGHT DIRECT VISION WINDOW. THE SHEAR CLIP WAS REPLACED IN ACCORDANCE WITH SRM 51-40-02.

Part: FITTING — DAMAGED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, FRAME 10 WAS FOUND TO BE ELONGATED AND THE HOLES MISALIGNED ON THE UPPER ATTACH SHEAR CLIP. THE SHEAR CLIP WAS REPAIRED IN ACCORDANCE WITH SRM 51-40-02 AND 53-00-04.

Part: FLOOR SUPPORT — DAMAGED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, A MISDRILLED HOLE IN THE OMEGA BEAM SPLICE AT THE CENTER OMEGA BEAM LEFT SIDE WAS REPORTED. THE FINAL CORRECTIVE ACTION WILL BE SUBMITTED AS A SUPPLEMENT TO THIS REPORT.

Part: SKIN — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE INNER SKIN AT THE POTABLE WATER NIPPLE FILL. THE SKIN WAS REPAIRED IN ACCORDANCE WITH ETD 2013-145-007598.

Part: FITTING — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE CARGO DOOR CUTOUT LATERAL L SHAPE AT THE BOTTOM OF FRAME 65. THE SHEAR CLIP WAS REPLACED IN ACCORDANCE WITH SRM 53-31-04.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, THE RIGHT OMEGA BEAM FROM FRAME 59 TO FRAME 61 WAS FOUND TO BE CORRODED. THE OMEGA BEAM WAS REPAIRED IN ACCORDANCE WITH ETD 2013-145-007501.

Part: REINFORCEMENT — CRACKED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, A CRACK WAS FOUND ON THE STRINGER REINFORCEMENT FRAME 20 STRINGER 3L. THE STRINGER REINFORCEMENT WAS REPLACED IN ACCORDANCE WITH SRM 51-40-02.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND AT THE SCREW HOLE ON THE LEFT OMEGA INBOARD FLOOR SUPPORT BETWEEN FRAMES 24 AND 25. THE FLOOR SUPPORT WAS REPLACED IN ACCORDANCE WITH SRM 51-30-01 AND 53-00-10.

Part: SEAT TRACK — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE SEAT TRACK SUPPORT AT FRAME 50. THE SEAT TRACK WAS REPLACED IN ACCORDANCE WITH SRM 51-40-02.

Part: DOUBLER — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND ON THE REPAIR DOUBLER AT THE LEFT OMEGA FRAME 20. THE REPAIR DOUBLER WAS REPLACED IN ACCORDANCE WITH SRM 53-00-10.

Part: DOUBLER — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND IN THE DOUBLER AT THE POTABLE WATER FILL NIPPLE. THE DOUBLER WAS REPAIRED IN ACCORDANCE WITH ETD 2013-145-007598.

Part: FLOOR SUPPORT — CORRODED (FUSELAGE) · airframe 25,890 hrs · 24,540 cycles

DURING INSPECTION, CORROSION WAS FOUND AT THE SCREW HOLE CENTER OMEGA LEFT FLOOR SUPPORT BETWEEN FRAMES 24 AND 25. THE OMEGA BEAM WAS REPAIRED IN ACCORDANCE WITH ETD 2013-145-007499.

Part: DAU — FAULTY (NR 1) · airframe 25,600 hrs · 24,260 cycles

CREW REPORTED THAT THERE WAS ELECTRICAL SMOKE SMELL AND HAZE IN THE COCKPIT IN FLIGHT. THE CREW DIVERTED TO KUNV AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE IC-600 NUMBER 1 AND THE DATA ACQUISITION UNIT 1. OPERATIONAL CHECKS WERE GOOD AND NO SMELLS WERE NOTED.

Part: COMPUTER — FAULTY (NR 1) · airframe 25,600 hrs · 24,260 cycles

CREW REPORTED THAT THERE WAS ELECTRICAL SMOKE SMELL AND HAZE IN THE COCKPIT IN FLIGHT. THE CREW DIVERTED TO KUNV AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE IC-600 NUMBER 1 AND THE DATA ACQUISITION UNIT 1. OPERATIONAL CHECKS WERE GOOD AND NO SMELLS WERE NOTED.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 24,797 hrs · 23,446 cycles

DURING INSPECTION, THE LEFT AFT OVERWING EMERGENCY LIGHT WAS FOUND TO BE INOPERATIVE. MAINTENANCE RELAMPED THE LEFT AFT OVERWING EMERGENCY LIGHT. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: WIRE — DAMAGED (CABIN) · airframe 24,772 hrs · 23,428 cycles

MAINTENANCE REPORTED THAT THE AFT FLOOR PROXIMITY STRIP WIRING WAS DAMAGED AT THE PROXIMITY STRIP. THE AFT FLOOR PROXIMITY STRIP WAS REPLACED. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: CLAMP — BROKEN (AC BAY) · airframe 23,893 hrs · 22,564 cycles

CREW REPORTED THAT DURING CLIMB THERE WAS A LOUD RUSHING AIR NOISE IN THE PASSENGER CABIN. THE CREW SELECTED PACK NUMBER 1 OFF AND THE NOISE CLEARED. PACK NUMBER 2 WAS ALREADY ON DEFERRAL AND THE CREW DECIDED TO RETURN TO KLGA. THE AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED A CLAMP AND DAMAGED SLEEVE ON THE PACK NUMBER 1 ASSEMBLY. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: BATTERY — DISCHARGED (CABIN) · airframe 23,803 hrs · 22,480 cycles

DURING INSPECTION, THE OVERWING EMERGENCY LIGHTS CONNECTED TO THE NUMBER 4 EMERGENCY BATTERY WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE NUMBER 4 EMERGENCY LIGHT BATTERY. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: BATTERY — DISCHARGED (CABIN) · airframe 23,803 hrs · 22,480 cycles

DURING INSPECTION, THE OVERWING EMERGENCY LIGHTS CONNECTED TO THE NUMBER 2 EMERGENCY BATTERY WERE FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE NUMBER 2 EMERGENCY LIGHT BATTERY. OPERATIONAL CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: MODULE — ACTIVATED (CABIN PRESSURE) · airframe 23,612 hrs · 22,259 cycles

CREW REPORTED, LOST THE CABIN ALTITUDE INDICATION IN MANUAL PRESSURIZATION MODE. AUTO-PRESSURIZATION WAS ALREADY ON MEL. THE AIRCRAFT RETURNED TO KPIT AND LANDED WITHOUT INCIDENT. MAINTENANCE LOCKED BOTH OUTFLOW VALVES OPEN AND DEFERRED AUTO AND MANUAL PRESSURIZATION MODES. THE DEFERRAL WAS CLEARED BY SDF MAINTENANCE ON 9/30/2011 BY CHANGING THE CABIN PRESSURE ACQUISITION MODULE. OPERATIONAL AND PRESSURIZATION CHECKS WERE GOOD WITH NO FURTHER DEFECTS NOTED.

Part: WIRE — BROKEN (CABIN) · airframe 22,652 hrs · 21,309 cycles

DURING INSPECTION THE NR 1 FLOOR PROXIMITY EMERGENCY LIGHT WAS FOUND TO HAVE BROKEN WIRES. MAINTENANCE REPLACED THE NR 1 FLOOR PROXIMITY LIGHT STRIP WITH NO FURTHER DEFECTS NOTED.

Part: WIRE — PULLED (CABIN) · airframe 21,985 hrs · 20,740 cycles

WHILE REMOVING THE AFT CENTER FLOORBOARD, THE AFT FLOOR PROXIMITY LIGHT STRIP WAS FOUND TO HAVE A WIRE PULLED FROM THE STRIP. THE FLOOR PROXIMITY STRIP AT ROWS 17/18 WAS REPLACED PER EMB 145 AMM 33-50-12 WITH NO FURTHER DEFECTS NOTED AT THAT TIME.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 21,605 hrs · 20,379 cycles

DURING INSPECTION, THE FLOOR PROXIMITY EMERGENCY LIGHT STRIP AT THE EXIT ROW WAS INOP WHEN TESTED. MAINTENANCE REPLACED THE FLOOR PROXIMITY EMERGENCY LIGHT STRIP AND OPERATIONAL CHECKS WERE GOOD.

Part: PROXIMITY SWITCH — FAULTY (NLG) · airframe 21,263 hrs · 20,084 cycles

CREW REPORTED THAT AFTER TAKEOFF THE NOSE LANDING GEAR DOORS WOULD NOT CLOSE. THE GEAR WAS CYCLED SEVERAL TIMES BEFORE THE NOSE GEAR DOORS FINALLY CLOSED. THE FLIGHT CONTINUED TO CMH AND LANDED WITHOUT INCIDENT. WHILE TROUBLESHOOTING THE FAULT, MAINTENANCE FOUND A BENT PIN ON THE LANDING GEAR CONTROL LEVER CONNECTOR AND A FAULTY NOSE LANDING GEAR WEIGHT ON WHEELS PROX SWITCH.

Part: LEVER — FAILED (MLG) · airframe 21,245 hrs · 20,068 cycles

AFTER TAKEOFF, CREW RETRACTED MLG & AFTER RETRACTION, NLG DOORS REMAINED OPEN. ACFT RETURNED TO FIELD & LANDED WITHOUT INCIDENT. MX FOUND A GROUND AT PIN X2 ON K0642 RELAY SOCKET. CONNECTOR P0774 DISCONNECTED ON W014 HARNESS & PIN X2, NO LONGER GROUNDED. W014 HARNESS REPLACED WITH NO FURTHER DEFECTS NOTED. FAULT RETURNED AGAIN ON 6/4/2010 AND A BENT PIN FOUND ON MLG CONTROL LEVER CONNECTOR AND A FAULTY UPLOCK PROX SWITCH IN THE NOSE UPLOCK BOX. MLG CONTROL LEVER REPLACED ALONG WITH BOTH NOSE LANDING GEAR UPLOCK PROX SWITCHES.

Part: CONNECTOR — SHORTED (MLG) · airframe 21,246 hrs · 20,071 cycles

AFTER TAKEOFF, GEAR SELECTED UP, CREW REPORTED NORMAL RETRACTION & EICAS INDICATIONS, BUT A LOUD NOISE HEARD FROM NLG AREA. ACFT RETURNED TO FIELD & LANDED WITHOUT INCIDENT. MX REPLACED LGEU, NLG DOOR RELAY K0642, & NLG DOOR SOLENOID. FAULT RETURNED ON 6/2/2010 & DURING TROUBLESHOOTING, A GROUND FOUND AT PIN X2 ON K0642 RELAY SOCKET. CONNECTOR P0774 DISCONNECTED ON W014 HARNESS & PIN X2 NO LONGER GROUNDED. W014 HARNESS REPLACED WITH NO FURTHER DEFECTS NOTED. FAULT RETURNED AGAIN ON 6/4/2010 AND A BENT PIN FOUND ON MLG CONTROL LEVER CONNECTOR AND FAULTY UPLOCK PROX SWITCH IN NLG UPLOCK BOX. MLG CONTROL LEVER REPLACED ALONG WITH BOTH NLG UPLOCK PROX SWITCHES.

Part: PROXIMITY SENSOR — FAULTY (NLG) · airframe 21,230 hrs · 20,052 cycles

AFTER TAKEOFF, WHEN THE LANDING GEAR WAS UP AND LOCKED, THE CREW NOTICED A LOUD RUSHING AIR NOISE FROM THE NOSE. THERE WERE NO UNUSUAL INDICATIONS ON EICAS AND AS A PRECAUTION THE ACFT RETURNED TO DEPARTURE AND LANDED WITHOUT INCIDENT. THE ACFT WAS THEN FERRIED FOR FURTHER TROUBLESHOOTING. MX FOUND THE NOSE UPLOCK PROX SWITCH AND CONNECTOR BAD. BOTH THE SWITCH AND CONNECTOR WERE REPLACED.

Part: UNKNOWN — MALFUNCTIONED (NLG DOOR) · airframe 21,216 hrs · 20,040 cycles

CREW REPORTED THAT AFTER SELECTING THE LANDING GEAR UP, THE NOSE LANDING GEAR DOORS WOULD NOT CLOSE. THE CREW VERIFIED WITH TOWER THAT THE NOSE GEAR DOORS WERE STILL OPEN WITH NO ABNORMAL INDICATIONS ON EICAS. THE AIRCRAFT RETURNED TO CLE AND LANDED WITHOUT INCIDENT. MAINTENANCE TROUBLESHOT THE FAULT IAW FIM 32-32-00, AND PERFORMED SEVERAL GEAR SWINGS IAW AMM 32-30-00. THE NOSE LANDING GEAR DOORS OPERATED NORMALLY AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: CONNECTOR — DAMAGED (CABIN) · airframe 21,069 hrs · 19,907 cycles

DURING INSPECTION A FLOOR PROXIMITY LIGHT STRIP WAS FOUND WITH DAMAGED CONNECTORS. THE FLOOR LIGHT STRIP WAS REPLACED BY MAINTENANCE IAW AMM 33-50-12.

Part: CONTROL LEVER — FAULTY (COCKPIT) · airframe 20,968 hrs · 19,829 cycles

CREW REPORTED THAT THE AIRCRAFT WOULD NOT ACCELERATE AND A RUMBLE COULD BE HEARD AND FELT. THE CREW INSPECTED THE WINGS DURING FLIGHT AND FOUND THE FLAPS SLIGHTLY EXTENDED WITH A ZERO INDICATION IN THE COCKPIT. THE FLAP HANDLE WAS CYCLED AND THE FLAPS FULLY RETRACTED AND THE NOISE STOPPED. THE AIRCRAFT RETURNED TO IAH AND LANDED WITHOUT INCIDENT. MAINTENANCE REPLACED THE FLAP HANDLE WITH NO FURTHER DEFECTS NOTED.

Part: SOLENOID VALVE — FAULTY (NLG DOOR) · airframe 20,957 hrs · 19,823 cycles

CREW RETURNED TO FIELD DUE TO A RUMBLING NOISE FROM THE NOSE LANDING GEAR AREA AFTER GEAR RETRACTION. THE AIRCRAFT WAS FERRIED TO SDF FOR FURTHER TROUBLESHOOTING. MAINTENANCE REPLACED THE NOSE LANDING GEAR DOOR SOLENOID, ALL THREE HYDRAULIC MANIFOLD FILTERS, BOTH NOSE LANDING GEAR TIRES, AND ADJUSTED THE NOSE LANDING GEAR SPIN BRAKE.

Part: LANDING GEAR — MALFUNCTIONED (NLG) · airframe 20,957 hrs · 19,822 cycles

ON DEPARTURE THE CREW REPORTED THAT IT TOOK THE NOSE LANDING GEAR ALMOST 1 MINUTE TO RETRACT AFTER SELECTING THE GEAR UP. A LANDING GEAR DISAGREE MESSAGE WAS ALSO REPORTED. THE AIRCRAFT RETURNED TO CMH AND LANDED WITHOUT INCIDENT. MAINTENANCE PERFORMED FIM TASK 32-32-00. GEAR WAS EXTENDED/RETRACTED FIVE TIMES WITH NO DEFECTS NOTED. NO EICAS OR CMC MESSAGES WERE DISPLAYED OR RECORDED AND THE SYSTEM OPERATED NORMALLY.

Part: BATTERY PACK — DISCHARGED (CABIN) · airframe 20,590 hrs · 19,484 cycles

DURING INSPECTION THE LEFT FORWARD EXTERNAL EMERGENCY LIGHT WAS FOUND TO BE INOP. MAINTENANCE REPLACED THE NR 1 EMERGENCY LIGHT BATTERY AND LAMP WITH NO FURTHER DEFECTS NOTED.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 20,590 hrs · 19,484 cycles

DURING INSPECTION, THE LEFT OVERWING EMERGENCY LIGHT WAS FOUND INOP DURING TEST. MAINTENANCE REPLACED THE EMERGENCY LIGHT ASSEMBLY IAW EMB 145 AMM 33-50-10, OPS CHECK GOOD.

Part: BATTERY PACK — DISCHARGED (CABIN) · airframe 19,716 hrs · 18,585 cycles

DURING INSPECTION THE LEFT FORWARD OVER-WING EMERGENCY LIGHT WAS FOUND TO BE INOPERATIVE. MAINTENANCE REPLACED THE NR 1 EMERGENCY LIGHT BATTERY PACK AND THE EMERGENCY LIGHT SYSTEM OPERATED NORMALLY.

Part: WARNING SYSTEM — MALFUNCTIONED (FUEL SYSTEM) · airframe 19,610 hrs · 18,462 cycles

ON THE TAKEOFF ROLL THE CREW RECEIVED THE E1 & E2 FUEL LOW PRESS MSG ON THE EICAS AND THE L, R & TOTAL FUEL QUANTITY INDICATIONS BLANKED OUT. THE FLIGHT THEN ABORTED TAKEOFF AND CLEARED THE RUNWAY. CHECKLISTS WERE COMPLETED AND THE AIRCRAFT RETURNED TO THE GATE FOR INSPECTION BY MAINTENANCE. THE CREW ALSO NOTED THAT THE "C" PUMPS WERE IN USE FOR THE TAKEOFF. MAINTENANCE PERFORMED THE FUEL LOW PRESSURE WARNING TEST AND ADJUSTMENT IAW 145AMM 28-45-00. OPS CHECKS WERE GOOD. ALSO PERFORMED A FUEL INDICATION TEST AND ADJUSTMENT IAW 145AMM 28-41-00. CHECK WAS SATISFACTORY. NO DEFECTS WERE FOUND AND THE AIRCRAFT WAS RELEASED FOR FURTHER SERVICE.

Part: UPLOCK — DEFECTIVE (LT MLG) · airframe 19,493 hrs · 18,328 cycles

ON TAKEOFF FROM CMH THE CREW RECEIVED A LANDING GEAR DISAGREE MSG. THE FLIGHT RETURNED TO THE FIELD AND MADE A NORMAL LANDING. UPON INSPECTION BY MAINTENANCE AND AFTER SEVERAL GEAR SWINGS, WAS ABLE TO DUPLICATE THE FAULT. MAINTENANCE REPORTED THAT THE LT MLG UPLOCK BOX WAS AT FAULT. THE UPLOCK BOX WAS REPLACED AND A TEST FLIGHT FOLLOWED. THE TEST FLIGHT PROVED SATISFACTORY AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: BATTERY PACK — DISCHARGED (CABIN) · airframe 19,469 hrs · 18,304 cycles

DURING INSPECTION WHILE TESTING THE EMERGENCY LIGHTING SYSTEM, THE LEFT FORWARD EXTERNAL EMERGENCY LIGHT, THE SERVICE DOOR EXIT MARKER LIGHT, AND LEFT AFT EXTERNAL EMERGENCY LIGHT WERE INOP. THE NR 1 BATTERY PACK WAS REPLACED FOR THE FORWARD EXTERNAL LIGHT, THE NR 2 INVERTER FOR THE SERVICE DOOR MARKER LIGHT, AND THE LIGHT ASSEMBLY FOR THE LEFT AFT EXTERIOR LIGHT. INVERTER P/N: 7824-1, LIGHT ASSEMBLY P/N: 30-25-10-3.

Part: LANDING GEAR — MALFUNCTIONED · airframe 19,295 hrs · 18,109 cycles

FLIGHT 7871, JFK TO IAD. AFTER TAKE-OFF THE FLIGHT CREW SELECTED THE LANDING GEAR UP AND THE GEAR RETRACTED NORMALLY BUT THE NOSE GEAR DOORS DID NOT SOUND AS IF THEY HAD CLOSED. THE LANDING GEAR WAS CYCLED AND THE NOISE WENT AWAY. THE AIRCRAFT CONTINUED ON TO ITS DESTINATION WITHOUT INCIDENT. IN IAD MAINTENANCE JACKED THE AIRCRAFT AND PERFORMED 10 GEAR SWINGS IAW MM 32-30-00 AND THE GEAR AND GEAR DOORS OPERATE NORMALLY WITH NO FURTHER DEFECTS NOTED.

Part: RELAY — FAULTY (MLG DOOR) · airframe 18,351 hrs · 17,069 cycles

FLIGHT 7804, JFK TO IAD - THE FLIGHT CREW REPORTED THAT DURING CLIMB AS THE AIRSPEED INCREASED, NOISE AND BUFFETING FROM UNDER THE AIRCRAFT'S NOSE INCREASED. THE CREW REPORTED A POSSIBLE OPEN NOSE GEAR DOOR BECAUSE THE NOISE DIDN'T CHANGE WHEN THE LANDING GEAR WAS EXTENDED. THE AIRCRAFT LANDED IN IAD WITHOUT INCIDENT. MAINTENANCE INSPECTED THE CONNECTIONS ON THE GEAR DOOR SOLENOID AND THE PROX SENSORS WITH NO DEFECTS NOTED. THE DOOR CONTROL RELAY (K0642) WAS REPLACED AND THE GEAR DOORS OPERATED NORMALLY DURING THE CHECK FLIGHT.

Part: PROXIMITY SWITCH — FAILED (ZONE 700) · airframe 17,712 hrs · 16,368 cycles

FLIGHT 7790, YOW TO IAD. AFTER TAKEOFF THE FLIGHT CREW RECEIVED A LG AIR/GRND FAIL MESSAGE ON EICAS AND THE LANDING GEAR WOULD NOT RETRACT. THE AIRCRAFT RETURNED TO YOW AND LANDED WITHOUT INCIDENT. MAINTENANCE CHECKED THE CMC FOR MESSAGES AND FOUND A PROX SWITCH FAIL CMC MESSAGE. THROUGH FURTHER TROUBLESHOOTING THE NOSE LANDING GEAR WEIGHT ON WHEELS PROX SWITCH WAS FOUND TO BE AT FAULT. THE PROX SWITCH WAS REPLACED AND THE SYSTEM OPERATED NORMALLY.

Part: ENGINE — LEAKING (NR 1) · airframe 16,524 hrs · 15,061 cycles

FLIGHT 7820, CMH-IAD, AFTER TAKEOFF AT 400 FEET, THE CREW RECEIVED A LAV SMOKE MESSAGE. THE FLIGHT ATTENDANT REPORTED THAT THERE WAS NO SMOKE PRESENT IN THE LAVATORY OR CABIN. THE FLIGHT RETURNED TO CMH AND LANDED WITHOUT INCIDENT. MAINTENANCE RAN THE ENGINES AND ISOLATED THE FAULT TO E1. WHEN RUNNING ON THE NUMBER 1 ENGINE THE COCKPIT FILLED WITH SMOKE THAT HAD AN OILY SMELL. NO EXTERNAL LEAKS WERE FOUND AND THE ZERO CARBON SEAL WAS DRY. E1 WAS REPLACED AND THERE WAS NO FURTHER SMOKE OR ODOR.

Part: ENGINE — OVERSERVICED · airframe 16,225 hrs · 14,747 cycles

CMH TO IAD - ON INITIAL CLIMB CREW RECEIVED A LAVATORY SMOKE INDICATION ON EICAS ACCOMPANIED BY VISIBLE SMOKE/SMOKE SMELL IN THE COCKPIT AND CABIN. THE AIRCRAFT RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. DURING APPROACH THE SMOKE INDICATION WENT AWAY, BUT THERE WAS STILL SOME VISIBLE SMOKE. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND BOTH ENGINES OVER-SERVICED WITH OIL. AFTER REMOVING EXCESS OIL AND RESERVICING TO THE CORRECT OIL LEVEL, BOTH ENGINES WERE RUN AND NO FURTHER SMOKE OR SMOKE INDICATIONS WERE NOTED.

Part: DUCT — CRACKED (NR 1 ENGINE) · airframe 15,259 hrs · 13,692 cycles

LGA TO IAD - DEPARTED LGA AT TAKEOFF POWER, AT APPROXIMATELY 300 FT AGL ENGINE NR 1 HAD AN ITT OF 950 DEGREES. WHEN ENGINE POWER WAS REDUCED, ITT LOWERED, BUT WAS STILL AROUND 900 DEGREES. AT 1,000 FT AGL, RECEIVED FIRE WARNING INDICATION FOR ENGINE NR 1. ENGINE NR 1 WAS SHUTDOWN AND THE FIRE INDICATION QUICKLY EXTINGUISHED. RETURNED TO FIELD WITH UNEVENTFUL LANDING. MAINTENANCE INSPECTED AND RAN ENGINE AND FOUND A CRACKED BLEED DUCT NEAR THE HIGH PRESSURE SWITCH. MAINTENANCE REPLACED THE CRACKED BLEED DUCT, PERFORMED HIGH POWER ENGINE RUNS AND OPS CHECKED GOOD.

Part: TAPE — DISLODGED (FUSLEAGE) · airframe 12,827 hrs · 11,190 cycles

FLIGHT 7846 - YYZ-IAD - AT FL260, FLIGHT CREW NOTICED A -POPPING- SOUND FROM F/O'S WINDOW AND -HISSING- SOUND. EICAS INDICATED QUICKLY RISING CABIN ALTITUDE. BOTH CREW MEMBERS DONNED OXYGEN MASKS AND EXECUTED CABIN DEPRESSURIZATION AND EMERGENCY DESCENT MEMORY ITEMS AND CHECKLISTS. DECLARED AN EMERGENCY WITH ATC TO ENSURE SAFE SEPARATION WITH TRAFFIC AND MEA VERIFICATION. CABIN ALTITUDE NEVER EXCEEDED 10,000 FEET ALTITUDE. AT LEVEL OFF, ALL SYSTEMS OPERATED NORMALLY. LANDED AT IAD WITH NO FURTHER INCIDENT. MAINTENANCE FOUND LARGE SECTION OF SPEED TAPE OVER F/O'S WINDSHIELD LIFTED INTO AIR STREAM. CHECKED TORQUE OF WINDSHIELD SCREWS AND FOUND TO BE OK. REAPPLIED SPEED TAPE IAW EMB 145 MM. PERFORMED OPS

Part: BULB — BURNED OUT (EMERGENCY LGIHT) · airframe 11,051 hrs · 9,294 cycles

LEFT HAND EXTERNAL OVERWING AFT EMERGENCY LIGHT INOPERATIVE. REMOVED AND REPLACED BULB LEFT HAND EXTERNAL OVERWING EMERGENCY LIGHT IAW EMB 145 MM 33-50-09. OPS CHECK GOOD.

Part: RELAY — FAILED (COCKPIT) · airframe 10,580 hrs · 8,384 cycles

A STRONG ELECTRICAL BURNING ODOR WAS NOTED DURING CLIMB FROM 520 FT TO 11,000 FT. CAPTAIN AND FIRST OFFICER DONNED O2 MASKS AND COMPLETED CABIN FIRE/SMOKE QRH CHECKLIST. AN EMERGENCY WAS DECLARED WITH POTOMAC APPROACH AND THE AIRCRAFT LANDED UNEVENTFULLY. MAINTENANCE FOUND A FAULTY RELAY. REMOVED AND REPLACED RELAY K0285 ON CB PANEL 0093. OPS CHECK GOOD IAW EMB 145 AMM 24-65-00 AND 24-31-00. NO DEFECTS NOTED.