N496UE

Part: PUMP — FAILED (HYDRAULIC SYSTEM)

IAD/GSO - FLT 6125 - DURING CLIMB AT 0650 HOURS ON 12-1-98, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO LT HYDRAULIC PUMP FAILURE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED HYDRAULIC PUMP. OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)

Part: ENGINE — BIRD STRIKE (RIGHT)

FLT 6152 - BGM-IAD - AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO BIRD STRIKE ON RIGHT ENGINE. CREW SHUT DOWN ENGINE AND ACTIBATED FIRE EXTINGUISHER. AIRCRAFT LANDED AND RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED RIGHT ENGINE DUE TO BENT BLADE. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)

Part: TRANSDUCER — OUT OF ADJUST (LT/RT WINGS)

IAD - FLT 6243 - DURING CLIMB AT 6243 HOURS ON 6-24-98, AIRCRAFT MADE AN UNSCHEDULED LANDING AT IAD DUE TO LT STALL WARNING AND STICK SHAKER INTERMITTENT. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED LIFT TRANSDUCER, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (X)

Part: DIAPHRAGM — SEPARATED (RT ENGINE)

FLT 6377 - IAD-CRW - DURING APPROACH, MADE A SCHEDULED LANDING AT CRW WITH ONE DISCREPANCY WHICH WAS RT ENGINE FLAMED OUT. CREW SHUT DOWN ENGINE. AIRCRAFT WENT TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND FOUND IDLER SPUR GEAR DIAPHRAGM SEPARATED FROM ASSEMBLY. MAINTENANCE REMOVED AND REPLACED DIAPHRAGM. OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)

Part: CONTROLLER — MISWIRED (RT WINDSHIELD)

IAD/ALB - FLT 6258 - DURING CRUISE AT 1837 HOURS ON 1-30-98, AIRCRAFT MADE AN UNSCHEDULED LANDING DUE TO FO'S WINDSCREEN HEAT WENT TO WARM-UP AFTER TAKEOFF. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND SWAPPED LEADS TO ALTERNATE HEAT SENSOR, OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)

Part: STRUT — REQ'D SERVICE (NLG)

FLT 6194 - LYH-IAD - DURING TAKEOFF, MADE AN UNSCHEDULED LANDING DUE TO LANDING GEAR WOULD NOT RETRACT, AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND FOUND THAT THE NOSE GEAR STRUT WOULD NOT EXTEND. MAINTENANCE SERVICED NOSE STRUT AND PERFORMED GEAR SWING, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)

Part: ENGINE — FAILED (LEFT)

FLT 6252 - IAD-ABE - DURING APPROACH, MADE A SCHEDULED LANDING WITH ONE DISCREPANCY WHICH WAS THE LEFT ENGINE TORQUE DROPPED AND CREW SHUTDOWN ENGINE. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED LEFT ENGIEN, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)

Part: TORQ SIGNAL COND — OUT OF ADJUST (LT/RT ENGINE)

ROA/IAD - FLT 6490 - DURING TAKEOFF AT 1650 HOURS ON 7-27-97, ABORTED TAKEOFF DUE TO BOTH ENGINES DID NOT MAKE TARGET TORQUE. AIRCRAFT RETURNED TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND ADJUSTED TORQUE SIGNAL CONDITIONERS. OPS CHECK OK. AIRCRAFT RELEASED AND RETURNED TO SERVICE. (X)

Part: ROD — FAILED (RT MLG)

GBM/IAD - FLT 6246 - DURING APPROACH AT 1120 HOURS ON 7-26-97, MADE A SCHEDULED LANDING WITH ONE DISCREPANCY WHICH WAS RT GEAR WARNING LIGHT ILLUMINATED ON GEAR EXTENSION. AIRCRAFT LANDED AND WENT TO THE GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND REMOVED AND REPLACED RADIUS ROD. OPS CHECK OK. AIRCRAFT RELEASED AND RETURNED TO SERVICE. (X)

Part: ENGINE — LOW POWER (LEFT)

IAD/GSO - FLT 6414 - DURING TAKEOFF AT 1540 HOURS ON 7-18-97, ABORTED TAKEOFF DUE TO LT ENGINE WOULD NOT MAKE TAKEOFF TORQUE. AIRCRAFT RETURNED TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND GROUND RAN AIRCRAFT AND RECOMP ENGINE. OPS CHECK OK. AIRCRAFT RELEASED AND RETURNED TO SERVICE. (X)

Part: MASTER CYLINDER — LOOSE CAP (RIGHT COCKPIT)

FLT 6296 - IAD-ROC - DURING CLIMB, MADE UNSCHEDULED LANDING AT IAD DUE TO HYDRAULIC FLUID UNDER CAPTAINS RIGHT RUDDER PEDAL. AIRCRAFT LANDED AND WENT TO THE GATE AT IAD WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND TIGHTENED LOOSE SERVICE CAP SCREW ON RIGHT MASTER CYLINDER, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)

Part: STRUT — REQ'D SERVICE (NLG)

FLT 6566 - SCE-IAD - DURING CLIMB, MADE A SCHEDULED LANDING AT IAD WITH ONE DISCREPANCY WHICH WAS GEAR WOULD NOT RETRACT NORMALLY, CREW USED GEAR HANDLE OVERRIDE SELECT GEAR UP. AIRCRAFT LANDED AND WENT TO THE GATE AT IAD WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED AND SERVICED NOSE STRUT AND RESET GEAR HANDLE, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)

Part: TACH GENERATOR — FAILED (RT ENGINE)

FLT 6348 - IAD-GSO - DURING CRUISE, AIRCRAFT MADE AN SCHEDULED LANDING AT GSO WITH ONE DISCREPANCY WHICH WAS RIGHT ENGINE RPM INDICATOR FAILED TO ZERO. AIRCRAFT WENT TO GATE WITH NO FURTHER PROBLEMS. MAINTENANCE INSPECTED ADN REMOVED ADN REPLACED TACH GENERATOR, OPS CHECK OK. AIRCRAFT WAS RELEASED AND RETURNED TO SERVICE. (M)

Part: HYD LINE — HOLE (HYD SYSTEM)

FLT NR 6331 - SWF-BOS - AFTER LANDING, AIRCRAFT LOST NOSE STEERING AND NORMAL BRAKING ON BOTH LEFT AND RIGHT HYD PUMPS. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED HYD LINE FROM CHECK VALVES TO FILTERS. OPS CHECK OK. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)

Part: SWITCH — FAILED (BAGGAGE DOOR)

FLT NR 6236 - IAD-ELM - DURING TAXI FOR TAKEOFF, RETURNED TO GATE DUE TO THE POD DOOR WARNING LIGHT ILLUMINATING. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE VERIFIED THAT THE DOOR WAS CLOSED AND OPENED DMI NR 04019 IAW MEL 52-1. MAINTENANCE LATER CLEARED DMI NR 04019 ON 02-19-96, BY REPLACING THE MICROSWITCH PLUNGER. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)

Part: NON-RETURN VALVE — FAILED (RT WING)

IAD/PIT - FLT 6332 - DURING CRUISE AT 1830 HOURS ON 12-27-95, RETURNED TO IAD DUE TO THE RT ENGINE ALMOST FLAMING OUT WHEN CROSSFEED WAS SELECTED OFF. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE RT BOOST PUMP NON-RETURN VALVE. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)

Part: HYDRAULIC LINE — BROKEN (FUSELAGE)

ROC/IAD - FLT 6412 - DURING CRUISE AT 1730 HRS ON 11-10-95, DECLARED AN EMERGENCY AND RETURNED TO IAD DUE TO A DUAL HYDRAULIC SYSTEM FAILURE. FLIGHT CREW HAD TO USE EMERGENCY HAND PUMP TO EXTEND LANDING GEAR. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE FOUND A HYDRAULIC LINE BROKEN ABOVE THE BAGGAGE POD. REPLACED LINE AND OPS CHECKS GOOD. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)

Part: FF CONTROL VLV — FAILED (LT ENG)

FLT NR 6379 - IAD-SYR - ABORTED THE TAKEOFF DUE TO THE LEFT ENGINE TORQUE AND EGT SPIKING DURING THE TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENACNE FOUND THE LEFT ENGINE FUEL FLOW STUCK IN THE ON POSITION. MAINTENANCE REPLACED THE FLOW CONTROL VALVE. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)

Part: EGT CONNECTOR — DIRTY (LT ENGINE)

IAD/HVN - FLT 6173 - DURING TAKOFF AT 1730 HRS ON 6-19-95, ABORTED TAKEOFF DUE TO LEFT ENGINE TORQUE DROPPED OFF DURING TAKEOFF ROLL. AIRCRAFT RETURNED TO GATE WITH NO FURTHER INCIDENTS. MAINTENANCE CLEANED THE CANNON PLUGS ON THE LEFT EGT COMP RESISTOR. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)

Part: WATER SEPARATOR — DIRTY (CABIN)

HPN/IAD - FLT 6388 - DURING CRUISE AT 1739 ON 5-8-95, A STRONG OIL SMELL WAS COMING FROM BOTH FLOWS. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE CLEANED WATER SEPARATOR SOCKS. AIRCRAFT RELEASED AND APPROVED FOR RETURN TO SERVICE. (X)

Part: DEICER BOOT — BLOWN (RT OTBD WING)

RIGHT OUTBOARD WING DEICER BOOT BLOWN, MAINTENANCE REMOVED AND REPLACED BOOT. (X)

Part: HYD FILTER — CLOGGED (FUSELAGE)

DURING APPROACH TO LANDING AN IN FLT EMERGENCY WAS DECLARED ON FLT NR 6296, DUE TO N/G DOWNLOCK INDICATION. THE RED INTRANSIT LIGHT STAYED ILLUMINATED. A/C LANDED AT SYR. A/C FERRIED TO IAD WHERE MX REPLACED THE DOWNLOCK MICROSWITCH BRACKET AND READJUSTED THE DOWNLOCK MICROSWITCH. OPS CHECK GOOD. A/C WAS RETURNED TO SERVICE. S/D - FLT NR 6240 FROM IAD TO ROA ON APPROACH, THE LANDING GEAR INDICATED 2 GREEN, THE NOSE INDICATION LAGGED. UPON LANDING/TAXI NOSE INITIALLY FLICKERED RE/GREEN THEN INDICATED ALL 3 GREEN DOWN AND LOCKED. A/C WAS FERRIED TO LYH WHERE MX CLEANED THE HYD RETURN FILTER AND COMPLIED WITH MX ACCEPTANCE FLT. OPS CHECK GOOD. BRACKET P/N 1371166K11, SWITCH P/N 9EN1C11HBB2. (Z)

Part: SELECTOR VALVE — MALFUNCTIONED (LANDING GEAR)

IAD-SYR - FLT 6338 - DURING APPROACH, THE NOSE GEAR INTRANSIT LIGHT ILLUMINATED AFTER GEAR EXTENSION WITH NO DOWNLOCK INDICATION. DOWNLOCK INDICATION ILLUMINATED SEVERAL MINUTES LATER PRIOR TO LANDING. ACFT LANDED WITH NO FURTHER INCIDENTS. ACFT WAS THEN FERRIED TO IAD, WHERE MAINTENANCE REPLACED THE LANDING GEAR SELECTOR VALVE. ACFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (W)

Part: OIL LINE — LOOSE (LT ENGINE)

FLT 6180 - IAD-BGM - LEFT ENGINE OIL PRESSURE FLUX 20 PSI WITH OIL CAPTION ILLUMINATED. CREW SHUT DOWN ENGINE AND DIVERTED TO MDT. AIRCRAFT LANDED WITHOUT INCIDENT. MAINTENANCE TIGHTEN OIL LINE TO PROP GOVERNOR P/N 31057165. OPS CHECKED GOOD. AIRCRAFT WAS THEN APPROVED FOR RETURN TO SERVICE. (Z)

Part: FIRE LOOP — FAILED (LT ENGINE)

DURING TAXI, THE LEFT ENGINE FIRE WARNING ACTIVATED ON REPOSITION TO THE GATE. CREW DISCHARGED BOTH BOTTLES. MAINTENANCE LATER INSPECTED, BUT FOUND NO VISIBLE SIGNS OF FIRE. MAINTENANCE REPLACED THE FIRE BOTTLES AND THE FIRE CONTROL UNIT. AIRCRAFT WAS RELEASED BUT ON TAXI OUT THE FIRE WARNING ILLUMINATED AGAIN. MAINTENANCE THEN REPLACED THE FIRE DETECTION LOOP. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (Z)

Part: SWITCH — FAILED (NOSE GEAR)

CLE-IAD - FLT 6548 - DURING APPROACH, HAD TO RECYCLE GEAR TO GET NOSE GEAR GREEN DOWNLOCK INDICATION. ACFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE NOSE DOWNLOCK MICROSWITCH. ACFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (W)