N434JS

Part: BLEED VALVE — FAILED (APU) · airframe 22,062 hrs · 19,448 cycles

DURING TAKEOFF, THE LEFT BLEED VALVE FAILED TO CLOSE WITH THE APU ON AND THE CREW ABORTED TAKEOFF. THE CREW THEN PERFORMED CHECK OF THE SYSTEM WITH THE APU BLEED OFF AND IT OPS CHECKED GOOD. MAINTENANCE THEN DEFERRED THE APU BLEED SYSTEM IN ACCORDANCE WITH 49-1-1C.

Part: ROD — OUT OF ADJUST (PAX DOOR) · airframe 21,532 hrs · 18,958 cycles

DURING CLIMBOUT, THE CREW RECEIVED A PASSENGER DOOR UNLOCK INDICATION AND RETURNED TO PHL. THE AIRCRAFT WAS THEN FERRIED TO DAY. MAINTENANCE INSPECTED AND ADJUSTED THE DOOR ROD IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 52-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BOLT — FAILED (PAX DOOR) · airframe 21,527 hrs · 18,954 cycles

DURING CLIMBOUT, THE CREW RECEIVED A PASSENGER DOOR UNLOCK INDICATION AND RETURNED TO DAY. MAINTENANCE INSPECTED AND ADJUSTED THE OVERCENTER SWITCH AND SHOOT BOLT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 52-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — DISCHARGED (CABIN) · airframe 21,228 hrs · 18,678 cycles

THE CREW REPORTED THAT THE EMERGENCY FLOOR LIGHTING WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE 6LK EMERGENCY BATTERY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: SENSOR — FAILED (AOA) · airframe 21,314 hrs · 18,760 cycles

THE CREW REPORTED RECEIVING A RIGHT HAND SHAKER ON SIDE CAS MESSAGE AND RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE ANGLE OF ATTACK SENSOR IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 27-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS THEN RELEASED FOR SERVICE.

Part: POWER SUPPLY — FAILED (EMERGENCY LIGHT) · airframe 20,448 hrs · 17,975 cycles

THE CREW REPORTED THAT THE 5LK EMERGENCY LIGHT POWER SUPPLY WAS BAD. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY POWER SUPPLY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: SMOKE — DETECTED (COCKPIT) · airframe 20,419 hrs · 17,951 cycles

THE CREW REPORTED SMOKE IN THE COCKPIT OVERHEAD PANEL OR LIGHT ON APU START. OUTSTATION MAINTENANCE INSPECTED THE APU AND FOUND NO DEFECTS, INSPECTED THE OVERHEAD PANEL AND FOUND NO DEFECTS, INSPECTED THE ELECTRICAL SYSTEM AND FOUND NO DEFECTS, ENSURED HX FAN CIRCUIT BREAKERS WERE IN, THEN GROUND RAN THE AIRCRAFT WITH THE CREW AND COULD NOT DUPLICATE ANY SMOKE IN THE COCKPIT, ALL IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 49-00-00. AFTER THE GROUND RUN UP WITH THE CREW AND NO DEFECTS WERE NOTED, THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: CONNECTOR — DISCONNECTED (EMERGENCY LIGHT) · airframe 20,222 hrs · 17,794 cycles

THE CREW REPORTED THE EMERGENCY FLOOR LIGHTS AT ROWS 4-6 WERE INOPERTIVE. MAINTENANCE RESECURED LIGHT STRIP CONNECTION AND PERFORMED OPERATIONAL CHECK IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-00-00 AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — FAILED (EMERGENCY LIGHT) · airframe 20,117 hrs · 17,703 cycles

THE CREW REPORTED THAT THE EMERGENCY FLOOR LIGHTING AT ROWS 4 TO 6 WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE 5LK EMERGENCY BATTERY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: FAN — FAILED (LT A/C PACK) · airframe 20,036 hrs · 17,641 cycles

THE CREW REPORTED A LEFT HAND HX FAN FAIL, THEN A LEFT HAND PACK OVERHEAT, AND THEN A LAV SMOKE CAS MESSAGE. THE CREW WITH MAINTENANCE CONTROL MEL'D THE LEFT HAND HX FAN WITH CODE 21-7 C.

Part: WARNING LIGHT — FALSE INDICATION (LAVATORY FIRE) · airframe 19,896 hrs · 17,521 cycles

THE CREW RECEIVED A LAV SMOKE CAS MESSAGE, THERE WAS NO LAV FIRE. MAINTENANCE CONTROL DEFERRED THE LAV FIRE EXTINGUISH SYSTEM IN ACCORDANCE WITH MEL 26-3 C.

Part: LIGHT — INOPERATIVE (CABIN) · airframe 19,154 hrs · 16,880 cycles

THE CREW REPORTED THAT THE EMERGENCY LIGHTING STRIP AT ROW 9A WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE LIGHTING STRIP AT ROW 9A IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — DISCHARGED (CABIN) · airframe 18,746 hrs · 16,550 cycles

THE CREW REPORTED THAT THE EMERGENCY LIGHTING AT THE REAR EXIT SIGN WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 7LK POSITION. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: FLIGHT DIR — MALFUNCTIONED (E/E BAY) · airframe 18,575 hrs · 16,407 cycles

DURING TAKEOFF, THE CREW RECEIVED A FLIGHT DIRECTOR FAIL IN THE HORIZONTAL MODE AND ABORTED TAKEOFF. ON THE TAXI WAY THE CREW CALLED MAINTENANCE CONTROL AND RESET THE SYSTEM. FLIGHT 4168 WAS THEN CLEARED FOR ANOTHER TAKEOFF ATTEMPT. FLIGHT 4168 THEN DEPARTED WITH NO FURTHER INCIDENTS.

Part: AILERON — JAMMED · airframe 16,651 hrs · 14,843 cycles

AILERONS MOMENTARILY JAMMED IN FLIGHT. JERKED FREE AND CONTROLS REMAINED STIFF. FLIGHT 4064 RETURNEDTO PIT. MAINTENANCE VISUALLY INSPECTED AILERON CONTROL CABLES AND PULLEYS IN ACCORDANCE WITH DORNIER MAINTENANCE JIC 27-11-03. NO DEFECTS NOTED. PERFORMED FU NCTIONAL CHECK FLIGHT, FOUND TO BE SATISFACTORY AT THIS TIME. AIRCRAFT RELEASEDFOR SERVICE.

Part: SWITCH — FAILED · airframe 16,557 hrs · 14,762 cycles

AFTER DEPARTING PHL, THE CREW RECEIVED A PACK FAIL AND OVER PRESSURE INDICATION. MAINTENANCE CONTROL AND DISPATCH DECIDED THAT FLIGHT 4062 SHOULD DIVERT TO CAK. MAINTENANCE AT CAK INSPECTED AND REPLACED THE OVERPRESSURE SWITCH IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: COMPUTER — FAILED · airframe 15,842 hrs · 14,112 cycles

DURING THE TAKE OFF ROLL, THE CREW RECEIVED A FLIGHT GUIDANCE COMPUTER FAIL CAS MESSAGE. THE CREW ABORTED TAKE OFF. WHEN EXITTING THE RUNWAY THE COMPUTER RESET AND AFTER CONFERRING WITH MAINTENANCE CONTROL, WAS CLEARED FOR ANOTHER TAKE OFF ATTEMPT. FLIGHT 4019 DEPARTED WITH NO FURTHER INCIDENTS.

Part: VALVE — FAILED · airframe 15,692 hrs · 13,948 cycles

DURING TAXI THE CREW RECEIVED A EMERGENCY PARKING BRAKE ACCUMULATOR FAIL CAS MESSAGE. THE CREW REFERENCED THE QUICK REFERENCE HANDBOOK AND FOLLOWED THE PROCEDURES AND THE MESSAGE CLEARED. DURING FURTHER TAXI, THE CREW RECEIVED THE SAME MESSAGE AND CONTACTED MAINTENANCE CONTROL WHO CONFIRMED THE QUICK REFERENCE HANDBOOK PROCEDURE WAS COORECT. THE MESSAGE HAD CLEARED AND ASKED MAINTENANCE CONTROL FOR VERIFICATION TO DEPART. DURING CLIMBOUT THE CREW RECEIVED THE EMERGENCY PARKING BRAKE ACCUMULATOR FAIL MESSAGE AND WERE ADVISED TO RETURN TO PIT. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY PARKING BRAKE CHECK VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-00-00. OPERATIONAL CHECKS WERE PERFORMED A

Part: CONTROLLER — MALFUNCTIONED (CABIN PRESSURE) · airframe 15,692 hrs · 13,948 cycles

DURING CLIMBOUT THE CABIN FAILED TO PRESSURIZE AND MAINTENANCE DECIDED TO MEL THE PRESSURIZATION. DUE TO FUEL CONSIDERATION AT THE LOWER ALTITUDE FLIGHT 4021 DIVERTED TO DAY FOR REFUELING. FLIGHT 4021 THEN CONTINUED TO PIT WITH NO FURTHER INCIDENTS.

Part: PSU — MALFUNCTIONED (CABIN) · airframe 15,661 hrs · 13,922 cycles

FLIGHT 4012 WAS APPROXIMATELY 50 NM NE OF LEX AND THE FLIGHT ATTENDANT NOTIFIED THE CREW OF A BURNING SMELL IN THE CABIN. THE CAPTAIN VERIFIED THE SMELL. THE CAPTAIN DETERMINED IT WAS COMING FROM THE FORWARD PART OF THE CABIN. THE CREW CONTACTED DISPATCH AND MAINTENANCE CONTROL AND WERE ADVISED TO DIVERT TO THE NEAREST SUITABLE AIRPORT. MECHANICS FROM DAY INSPECTED AND REPLACED THE PASSENGER SERVICE UNIT AT 3A IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 25-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE. AFTER FURTHER TROUBLESHOOTING, OF THE PASSENGER SERVICE UNIT, IT IS SUSPECTED THAT THERE WAS A CONNECTION PROBLEM.

Part: PANEL — FAILED (COCKPIT) · airframe 15,601 hrs · 13,869 cycles

DURING CLIMB, AT 4200MSL, THE CREW HEARD A NOISE AND DETERMINED THERE WAS A PROBLEM WITH THE PRESSURIZATION SYSTEM. THE CREW CONTACTED MAINTENANCE CONTROL AND WENT THROUGH TROUBLESHOOTING STEPS FOR A SOLUTION BUT THE PROBLEM PERSISTED. THE CREW WAS INSTRUCTED TO RETURN TO PIT. ON THE RETURN TO PIT THE MANUAL MODE BEGAN TO PRESSURIZE THE CABIN QUICKLY. FLIGHT 4066 LANDED WITH NO FURTHER INCIDENTS. MAINTENANCE INSPECTED AND REPLACED THE PRESSURIZATION CONTROL PANEL IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BLEED VALVE — FAILED (CROSS BLEED) · airframe 15,370 hrs · 13,674 cycles

DURING CLIMBOUT THE RIGHT HAND PACK FAILED. THE CREW FOLLOWED THE QUICK REFERENCE HANDBOOK THEN HAD A DUAL PACK OVERPRESSURE FAIL CAS MESSAGE. THE CREW DECIDED TO RETURN TO TYS. THE AIRCRAFT WAS FERRIED TO PIT WHERE MAINTENANCE REPLACED THE CROSS BLEED VALVE IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: HARNESS — DEFECTIVE (NLG STEERING) · airframe 14,809 hrs · 13,186 cycles

AFTER TAKING THE RUNWAY FLIGHT 4168 RECEIVED A PROXIMITY SYSTEM FAIL WARNING MESSAGE. THE FLIGHT CREW THEN CLEARED THE RUNWAY. MAINTENANCE INSPECTED THE AIRCRAFT AND FERRIED THE AIRCRAFT TO CAK FOR REPAIRS. UPON APPROACH TO CAK FLIGHT 9423 RECEIVED A NOSE WHEEL STEERING WARNING MESSAGE UPON LOWERING THE LANDING GEAR. THE FLIGHT CREW PERFORMED A MISSED APPROACH TO COMPLETE THE CHECKLIST AND THE CAPTAIN DECLARED AN EMERGENCY. THE AIRCRAFT LANDED AND WAS SHUTDOWN ON THE RUNWAY AND WAS TOWED. MAINTENANCE INSPECTED AND REPLACED THE NOSE GEAR ELECTRICAL HARNESS IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 32-20-00. OPERATIONAL CHECKS WERE COMPLETED AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: DOOR — NOT SEATED (EE BAY) · airframe 14,749 hrs · 13,136 cycles

DURING CLIMBOUT THE AIRCRAFT WOULD NOT PRESSURIZE. THE FLIGHT CREW RETURNED TO THE FIELD. MAINTENANCE INSPECTED AND RESEATED THE AVIONICS BAY MAINTENANCE HATCH IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 06-04-02. GROUND PRESSURIZATION CHECKS WERE COMPLETED AND THE AIRCRAFT RETURNED TO SERVICE.

Part: WARNING SYSTEM — ACTIVATED (COCKPIT) · airframe 14,574 hrs · 12,986 cycles

AS THE AIRCRAFT WAS TAXIING ON TO THE RUNWAY RECEIVED A PACK FAIL CAS MESSAGE. THE CREW ADVISED TOWER OF NEED TO EXIT THE RUNWAY. THE CREW WENT THRU THE QRH AND THE CAS MESSAGE CLEARED. RE-ENTERED THE RUNWAY AND DEPARTED WITHOUT FURTHER INCIDENT.

Part: BATTERY — DISCHARGED (CABIN) · airframe 14,469 hrs · 12,897 cycles

THE CREW REPORTED THAT THE EMERGENCY LIGHTS WERE NOT ILLUMINATING AT ROWS 4 THROUGH 6. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 5LK POSITION IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONALS CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: HYDRO MECH UNIT — FAILED (LT PROPELLER) · airframe 14,257 hrs · 12,722 cycles

FLIGHT 4070 ABORTED TAKEOFF AFTER POWER LEVERS WERE ADVANCED AND THE LEFT HAND ENGINE OVER TORQUED. MAINTENANCE INSPECTED AND REPLACED THE PROPELLER HYDRAULIC UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BRUSH BLOCK — DAMAGED (PROPELLER) · airframe 14,148 hrs · 12,626 cycles

ENROUTE FROM PIT TO AZO, THE CREW RECEIVED A LEFT HAND PROPELLER HEAT FAIL CAS MESSAGE. FLIGHT 4169 DIVERTED TO DAY WHERE MAINTENANCE OHMED THE DE-ICE BOOTS AND CLEANED THE BRUSH BLOCK IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 61-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — FAILED (CABIN) · airframe 14,057 hrs · 12,542 cycles

THE CREW REPORTED THAT THE EMERGENCY LIGHT BY THE FLIGHT ATTENDANT'S SEAT WAS NOT ILLUMINATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — DISCHARGED (CABIN) · airframe 13,839 hrs · 12,356 cycles

FLOOR EMERGENCY LIGHTS INOPERATIVE. MAINTENANCE REPLACED BATTERY, OPS CHECK GOOD.

Part: SEAL — OUT OF ADJ (PAX DOOR) · airframe 13,543 hrs · 12,101 cycles

FLIGHT 4155 OBSERVED A CABIN DIFFERENTIAL POUNDS PER SQUARE INCH OF .23 AT FLIGHT LEVEL 110 AND THE AIRCRAFT WOULD NOT PRESSURIZE. FLIGHT 4155 DIVERTED INTO PIT WHERE IT WAS INSPECTED AND FERRIED TO CAK DUE TO NO PARTS BEING IN PIT. MAINTENANCE IN CAK INSPECTED AND FOUND THE CARGO DOOR SEAL NEEDED ADJUSTMENT. MAINTENANCE ADJUSTED THE SEAL IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 52-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: CONTROL PANEL — FAILED (CABIN PRESSURE) · airframe 13,469 hrs · 12,042 cycles

FLIGHT 4171 RETURNED TO THE FIELD IN PITTSBURGH DUE TO NO PRESSURIZATION IN AUTO OR MANUAL MODE. MAINTENANCE INSPECTED AND REPLACED THE PRESSURE CONTROL PANEL IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-00-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: PUMP — FAILED (HYDRAULIC SYS) · airframe 12,834 hrs · 11,518 cycles

AT THE START OF THE TAKEOFF ROLL, THE CREW RECEIVED A HYDRAULIC MAIN TEMPERATURE HIGH MESSAGE. THE CREW ABORTED THE TAKEOFF AND RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE MAIN HYDRAULIC PUMP IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 29-11-04. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — FAILED (CABIN) · airframe 12,408 hrs · 11,166 cycles

THE CREW REPORTED THAT THE EMERGENCY LIGHTS AT ROWS 7 THROUGH 9 WERE NOT WORKING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 6LK POSITION IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — FAILED (CABIN)

THE CREW REPORTED THAT THE EMERGENCY LIGHTS WOULD NOT ILLUMINATE AT THE 6LK POSITION. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-00. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — INOPERATIVE (CABIN)

THE CREW NOTICED THAT EMERGENCY LIGHTS AT ROW SEVEN THROUGH NINE WERE NOT OPERATING. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: RESISTOR — FAILED (COCKPIT)

EN ROUTE THE CREW NOTICED ELECTRICAL BURNING FUMES IN THE COCKPIT. THE F/A NOTED ELECTRICAL BURNING FUMES IN ROWS 1 AND 2. THE CREW DECLARED AN EMERGENCY AND DIVERTED TO CHATTANOOGA AND LANDED WITHOUT INCIDENT. MX INSPECTED AND FOUND A BURNT RESISTOR IN THE OBSERVERS PANEL. MX CONTROL DEFERRED THE OBSERVERS PANEL. UPON ARRIVAL AT THE MX FACILITY, MX REPLACED THE 35 LR RESISTOR IAW WIRING MANUAL 20-10-00 AND DORNIER MM 31-14-00. OPS CHECKS WERE PERFORMED, THE DEFERAL WAS CLEARED, AND THE A/C WAS RELEASED FOR SERVICE.

Part: BATTERY — DISCHARGED (CABIN)

THE FLIGHT CREW FOUND THE EMERGENCY LIGHTS 7, 8, AND 9 NOT WORKING. THE AIRCRAFT WAS FERRIED TO PIT. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE 6LK POSITION IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-O1. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — DISCHARGED (ROW 7A)

THE FLIGHT CREW FOUND THE EMERGENCY LIGHT AT SEAT 7A DID NOT WORK. MAINTENANCE INSPECTED AND REPLACED THE EMERGENCY BATTERY AT THE L03 POSITION IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-01. OPERATIONAL CHECKS WERE PERFORMED AND THE AIRCRAFT WAS RELEASED FOR SERVICE.

Part: BATTERY — DISCHARGED (ROW 9A)

THE FLIGHT CREW FOUND THE EMERGENCY EXIT LIGHT AT SEAT 9A WAS NOT WORKING. MAINTENANCE REPLACED THE EMERGENCY BATTERY AT THE 6LK POSITION IN ACCORDANCE WITH THE DORNIER MAINTENANCE MANUAL 33-51-00. OPERATIONAL CHECKS WERE COMPLETED AND THE AIRCRAFT RETURNED TO SERVICE.

Part: BATTERY PACK — DISCHARGED (ROW 6LK)

A SECTION OF EMERGENCY FLOOR LIGHTING WAS FOUND TO BE INOPERATIVE. MAINTENANCE INSPECTED AND REPLACED THE 6LK EMERGENCY BATTERY PACK IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 33-51-00. OPERATIONAL CHECKS WERE COMPLETED AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: FIRE WARNING — ACTIVATED (LAVATORY)

THE AIRCRAFT RETURNED TO THE GATE FOR AN INTERMITTANT LAV FIRE WARNING INDICATION. MAINTENANCE INSPECTED AND REPLACED THE LAV FIRE BOTTLE, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 26-25-01. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: CONTROL PANEL — FAILED (COCKPIT)

THE AIRCRAFT RETURNED TO THE GATE FOLLOWING A CPCS MISCOMPARE WARNING MESSAGE. MAINTENANCE INSPECTED AND REPLACED THE PRESSURIZATION CONTROL PANEL, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 21-31-01. OPERATIONAL CHECKS WERE COMPLETED.

Part: SPRING — LOOSE (RT COCKPIT)

THE AIRCRAFT RETURNED TO THE GATE, DUE TO THE FIRST OFFICERS SEAT VERTICAL ADJUSTMENT FUNCTION BEING INOPERATIVE. MAINTENANCE INSPECTED AND RE-SECURED THE VERTICAL ADJUSTMENT HELPER SPRING, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 25-21-00. OPERATIONAL CHECKS WERE COMPLETED, AND THE AIRCRAFT WAS RELEASED FROM MAINTENANCE.

Part: VALVE — FAILED (FUSELAGE)

DURING TAXI PRIOR TO DEPARTURE, A CROSS BLEED FAIL WARNING MESSAGE ILLUMINATED. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND REPLACED THE CROSS BLEED VALVE, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 36-11-10. OPERATIONAL CHECKS WERE COMPLETED.

Part: DETECTOR — FAILED (AFT LAV)

DURING THE CLIMB AFTER TAKEOFF, A LAV SMOKE WARNING MESSAGE ILLUMINATED IN THE COCKPIT. THE CREW ELECTED TO RETURN TO THE FIELD AND HAVE IT LOOKED AT BY DAY MAINTENANCE. MAINTENANCE INSPECTED AND DEFERRED THE LAV SMOKE SYSTEM, IN ACCORDANCE WITH THE DORNIER MINIMUM EQUIPMENT LIST. THE AIRCRAFT WAS RETURNED TO SERVICE. LATER IN THE DAY, PIT MAINTENANCE INSPECTED AND REPLACED THE LAV SMOKE DETECTOR, IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 26-15-01. OPERATIONAL CHECKS WERE COMPLETED AND FOUND TO BE SATISFACTORY. THE DEFERRAL WAS REMOVED, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: DAU — MALFUNCTIONED (E/E COMPT)

DURING THE TAXI FOR TAKEOFF, A CHECK DU 3 WARNING MESSAGE ILLUMINATED ON FAULT WARNING COMPUTOR NUMBER TWO. THE AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED AND SWAPPED THE DATA ACQUISITION UNITS FOR TROUBLE SHOOTING. OPERATION CHECKS WERE CARRIED OUT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 31-42-00. THE CHECKS WERE SATISFACTORY, AND THE AIRCRAFT WAS RETURNED TO SERVICE.

Part: RADAR — DEFECTIVE (COCKPIT)

AFTER TAKEOFF, CREW RECEIVED A WEATHER RADAR FAIL MESSAGE. RETURNED TO FIELD AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND RADAR UNIT DEFECTIVE. REPLACED UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 34-41-00. OPERATIONAL CHECK GOOD AND AIRCRAFT APPROVED FOR RETURN TO SERVICE.

Part: DAU — TRIPPED (NR 1)

WHILE SETTING POWER FOR TAKEOFF, LT ENGINE OIL PRESSURE INDICATION WAS ERRATIC ON EICAS PAGE. REDUCED POWER AND RETURNED TO GATE. MAINTENANCE RERACKED THE NR 1 DATA ACQUISION UNIT IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 31-42-00. OPERATIONAL CHECK GOOD AND AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.

Part: BRUSH BLOCK — DEFECTIVE (LT PROP)

DURING TAXI, THE LT PROPELLER HEAT SYSTEM FAILED. AIRCRAFT RETURNED TO THE GATE. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THE DE-ICE BRUSH BLOCK TO BE DEFECTIVE. REMOVED AND REPLACED THE BRUSH BLOCK IN ACCORDANCE WITH DORNIER MAINTENANCE MANUAL 30-61-05. OPERATIONAL CHECK GOOD AND THE AIRCRAFT WAS APPROVED FOR RETURN TO SERVICE.

Part: BRAKE VLE — DEFECTIVE (LT MLG W/W)

SHORTLY AFTER T/O DURING CLIMB OUT, THE FLIGHT CREW WAS ALERTED BY AN EMERGENCY/PARK BRAKE CAS MESSAGE. CREW ELECTED TO RETURN TO THE FIELD AND AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. PIT MX REPLACED THE EMERGENCY/PARK BRAKE VALVE IAW MM 32-43-02, GROUND CHECKED GOOD.

Part: ACCUMULATOR — REQD SERVICE (PARKING BRAKE)

DURING CLIMB-OUT, CREW REPORTED BEING ALERTED BY AN EMERGENCY/PARKING BRAKE ACCUMULATOR PRESS LOW CAS MESSAGE. CREW ELECTED TO RETURN TO THE FIELD, AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. PIT MX SERVICED THE PARKING BRAKE ACCUMULATOR I.A.W. M.M. 12-00-00. AIRCRAFT RETURNED TO SERVICE.

Part: TRANSDUCER — DEFECTIVE (HYD PACK)

EN ROUTE FROM PIT TO HUN, CREW REPORTED BEING ALERTED BY A HYDRAULIC LOW PRESSURE C.A.S. MESSAGE. THIS WAS FOLLOWED ALMOST IMMEDIATELY BY A STAND-BY PRESSURE SYSTEM FAIL C.A.S. MESSAGE. AIRCRAFT DIVERTED TO BDL, LANDED WITHOUT FURTHER INCIDENT. AIRCRAFT WAS LATER FERRIED FROM BDL TO CAK. MAINTENANCE REPLACED THE HYDRAULIC PRESSURE TRANSDUCER I.A.W. M.M. 29-31-03, GROUND CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: RADOME — BIRD STRIKE (FWD FUSELAGE)

SHORTLY AFTER T/O, THE CREW REPORTED STRIKING A BIRD IN THE VICINITY OF THE AIRCRAFT RADOME. CREW CONTINUED ON WITH THE FLIGHT AND LANDED IN PIT WITHOUT FURTHER INCIDENT. PIT MX INSPECTED THE AIRCRAFT AND DISCOVERED THAT THE RADOME HAD BEEN DAMAGED. THEY REPLACED THE RADOME IAW MM 53-10-00.

Part: INVERTER — DEFECTIVE (NR 1)

ON THE TAKEOFF ROLL, CREW WAS ALERTED BY AN AMBER CAS MESSAGE NR 1 INVERTER FAIL. CREW ABORTED THE TAKEOFF AND RETURNED TO THE GATE. PIT MX INSPECTED THE AIRCRAFT AND DETERMINED THAT THE NR 1 INVERTER WAS FAULTY. REPLACED THE NR 1 INVERTER IAW MM 24-20-00, GROUND CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. PART TOTAL CYCLES, 1,758.

Part: WINDSHIELD — CRACKED (RT COCKPIT)

CVG - FLT 4010 - EN ROUTE FROM PHL INBOUND TO CVG, CREW REPORTED THAT THE FIRST OFFICER'S WINDSHIELD CRACKED. CREW PROCEEDED ON WITH THE FLIGHT AND LANDED WITHOUT FURTHER INCIDENT AT CVG. MX REPLACED THE F/O'S WINDSHIELD IAW MM 56-11-00. AIRCRAFT WAS THEN RETURNED TO SERVICE.

Part: TO WARNING — FALSE WARN (COCKPIT)

TOL - FLT 4029 - DURING THE TAKEOFF ROLL, CREW WAS ALERTED BY A TAKEOFF CONFIGURATION WARNING. CREW ABORTED THE TAKEOFF AND RETURNED TO THE GATE. OUT STATION MX INSPECTED THE AIRCRAFT FOUND NOTHING IRREGULAR. COULD NOT DUPLICATE THE PROBLEM. AIRCRAFT RETURNED TO SERVICE.

Part: ENGINE — FLAMED OUT (LEFT)

FLT 4148 - LEFT ENGINE FLAMED OUT ON TAKEOFF ROLL. PERFORMED A PRECAUTIONARY EVACUATION. AIRCRAFT WAS LATER RETURNED TO THE GATE WHERE PIT MAINTENANCE INSPECTED THE ENGINE, NO DISCREPANCIES NOTED. MAINTENANCE ALSO REMOVED, CLEANED, AND REINSTALLED ALL ENGINE HARNESS-TO-SENSOR CANNON CONNECTORS. CONDUCTED ENGINE GROUND RUNS IAW MM 72-00-00. NO DISCREPANCIES NOTED DURING ANY OF THE SYSTEM GROUND CHECKS. CONDUCTED FLIGHT CHECK. ALL ENGINE SYSTEMS CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: UPLOCK ROLLER — DIRTY (RT MLG)

FLT NR 4166 - SHORTLY AFTER TAKEOFF, AFTER GEAR WAS SELECTED 'UP' THE RIGHT MAIN LANDING GEAR INTRASIT LIGHT REMAINED ILLUMINATED. CREW CYCLED THE GEAR SEVERAL TIMES, BUT THE INTRANSIT LIGHT REMAINED ILLUNMINATED. AIRCRAFT RETURNED TO THE FIELD, LANDED WITHOUT FURTHER INCIDENT. PIT MAINTENANCE CLEANED AND LUBRICATED THE UPLOCK ROLLERS IAW MM 32-00-00 AND STD MC PRACTICES. GROUND CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: FUEL FILTER — CLOGGED (RT ENGINE)

FLT 4029 - PRIOR TO TAKEOFF AS ENGINES WERE BROUGHT UP TO POWER, THE CREW WAS ALERTED BY A CAS MESSAGE (RT FUEL FILTER BYPASS). AIRCRAFT RETURNED TO GATE WITHOUT FURTHER INCIDENT. PIT MX REMOVED AND REPLACED RT ENGINE HIGH PRESSURE FUEL FILTER IAW MM 73-00-00. GROUND RUNS CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE. (X)

Part: WINDSHIELD — DEFECTIVE (RIGHT)

FLT 4081 - DURING CRUISE AT FL 210, THE FIRST OFFICER'S WINDSHIELD BEGAN TO ARC. SHORTLY THEREAFTER, THE OUTER PANE OF THE WINDSHIELD SHATTERED. AIRCRAFT RETURNED TO FIELD, LANDED WITHOUT FURTHER INCIDENT. AIRCRAFT WAS LATER FERRIED FROM CLT TO CAK WHERE MX REPLACED THE FIRST OFFICER'S (RIGHT) WINDSHIELD IAW MM TR56-10-00 AND MM TR56-11-00. GROUND CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE. (X)

Part: PSEU — MALFUNCTIONED (AVIONICS RACK)

FLT 4058 - DURING CRUISE AT FL 200, CREW NOTICED SEVERAL AMBER CAS MESSAGES (HYD AT FAIL, STANDBY PUMP FAIL, AND PROXI FAIL). CREW CONSULTED QUICK REFERENCE HANDBOOK TO DETERMINE IF THEY WERE EXPERIENCING A SYSTEM FAILURE OR AN INDICATION PROBLEM. ONCE THEY DETERMINED THE FAILURE MODE WAS A RESULT OF THE INDICATION SYSTEM, THEY CONTINUED ON TO PIT. UPON LANDING, CREW EXPERIENCED A NOSE WHEEL STEERING AND ANTI-SKID FAIL INDICATION. THE AIRCRAFT CONTINUED TO THE GATE WITH NO FURTHER PROBLEMS. PIT MAINTENANCE RESET PSEU, OPS CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: BULB — DEFECTIVE (GEAR HANDLE)

FLT 4016 - WHILE SELECTING GEAR DOWN FOR LANDING, CREW DID NOT GET A GEAR DOWN INDICATION FOR THE LEFT MAIN LANDING GEAR. CREW CYCLED THE GEAR SEVERAL TIMES, WITHOUT SUCCESS. CREW ELECTED TO DO AN EMERGENCY LANDING GEAR EXTENSION, STILL DOWN INDICATION FOR THE LT MLG. AIRCRAFT LANDED WITHOUT FURTHER INCIDENT. PIT MAINTENANCE REMOVED AND REPLACED LIGHT BULB IN THE LANDING GEAR SELECT HANDLE. GROUND RUN CHECKED GOOD. AIRCRAFT RETURNED TO SERVICE.

Part: PSEU — MALFUNCTIONED (AVIONIC RACK)

FLT 4008 - DURING PREPARATION FOR TAKEOFF, CREW NOTICED 4 AMBER CAS MESSAGES RELATED TO THE AIRCRAFT HYDRAULIC SYSTEM. AIRCRAFT RETURNED TO THE GATE. OUT-STATION MAINTENANCE RE-RACKED THE PSEU (PROXIMITY SENSOR ELECTRONIC UNIT). GROUND RUN CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE.

Part: ROLLER — LACK OF LUBE (MLG)

FLT 4022 - AFTER TAKEOFF, RIGHT MAIN LANDING GEAR WOULD NOT RETRACT. CREW CYCLED GEAR SEVERAL TIMES WITH NO SUCCESS. AIRCRAFT RETURNED TO FIELD, LANDED WITHOUT INCIDENT. PIT MAINTENANCE INSPECTED LANDING GEAR SYSTEM, FOUND RT MAIN GEAR UPLOCK ROLLER IN NEED OF LUBRICATION. LUBRICATED RT AND LT MAIN GEAR UPLOCK ROLLERS IAW MM 32-10-00 AND STANDARD MAINTENANCE PRACTICES. FUNCTION CHECK FLIGHT (FCF) CHECKED GOOD, AIRCRAFT RETURNED TO SERVICE.