N974QS

ATA 5210

Part: HANDLE — LACK OF LUBE (ZONE 800) · airframe 1,562 hrs · 1,030 cycles

MAIN CABIN DOOR HANDLE EXTREMELY HARD TO OPEN. THE LAST THIRD OF THE HANDLE TRAVEL FEELS LIKE IT IS BINDING HAVE LUBRICATED EACH HANDLE UNTIL THEY WERE OPERATING SMOOTHLY. BOTH HANDLES ARE NOW OPERATING WITH NO DEFECTS OR BINDING. ALL WORK DONE IAW AMM 52-10-00.

ATA 5210

Part: DOOR — BINDING (ZONE 800) · airframe 1,201 hrs · 788 cycles

THE MAIN CABIN DOOR IS VERY DIFFICULT TO OPEN OR CLOSE. WHEN CLOSING, IT TAKES SEVERAL ATTEMPTS BEFORE THE LIGHT WILL EXTINGUISH AND WHEN OPENING THIS LAST TIME IT TOOK A LOT OF FORCE TO LIFT THE HANDLE FROM INSIDE THE CABIN. MAIN CABIN DOOR HANDLES WERE CLEANED, TESTED, AND OPERATED SEVERAL TIMES FROM BOTH THE OUTSIDE AND INSIDE. NO DEFECTS WERE NOTED AT THE TIME OF INSPECTION, IAW AMM 52-10-00.

ATA 5210

Part: HANDLE — STIFF (ZONE 800) · airframe 1,118 hrs · 740 cycles

MED HANDLE IS STIFF TO CLOSE TO THE POINT IT AT TIMES WOULD LOCK. WHEN IT DOES LOCK, HAVE TO RESET THE SYSTEM IN ORDER FOR THE DOOR CAS MESSAGE TO CLEAR. C/W REPOSITIONED THE AIRCRAFT TO THE HANGAR DUE TO WEATHER. WE PERFORMED THE MAIN CABIN DOOR HEALTH CHECK PER MCC REQUEST. WE ALSO PERFORMED THE CABIN DOOR LATCH/LOCK SYSTEM FUNCTIONAL TEST IAW AMM 52-10-04, WHICH SHOWED MORE THAN 20 POUNDS TO MOVE THE HANDLE TO THE LOCKED POSITION. WE REMOVED THE OLD LUBRICANT FROM THE PINS AND LUBRICATED THE CABIN DOOR PINS WITH NEW LUBRICANT IAW AMM 12-20-40. THE HANDLE NOW CLOSES WITH 10 POUNDS OF FORCE. WE CYCLE THE HANDLE SEVERAL TIMES, AND THE DOOR LATCH/LOCKS AND UNLATCHES/UNLOCKS WITH NO ABNORMALITIES. ADVISED NJA MCC OF THE FINDINGS AND THEY ARE OK WITH RELEASING THE AIRCRAFT. NO FURTHER ACTION REQUIRED

ATA 5210

Part: LINK — DETACHED (ZONE 800) · airframe 797 hrs · 527 cycles

MCD LIFT ARM HAS COME UNATTACHED FROM DOOR ARM. REINSTALLED CABIN DOOR LIFT LINK. OPS CHECK GOOD. IAW CE-680A AMM 52-15-15.

ATA 5210

Part: BOLT — DEFECTIVE (ZONE 800) · airframe 494 hrs · 327 cycles

BOLT HOLDING TOGETHER THE DOOR MOTOR ARM AND THE DOOR/STAIR METAL ATTACHMENT ARM IS MISSING SO DOOR CAN ONLY BE RAISED MANUALLY. REPLACED DOOR LIFT HARDWARE. OPS CHECK GOOD. IAW AMM 52-15-15.

ATA 5297

Part: WIRE HARNESS — DEFECTIVE (ZONE 800) · airframe 458 hrs · 302 cycles

DURING PREFLIGHT FOUND MAIN CABIN DOOR VERY HARD TO OPEN WHEN STARTED UP APU GOT CABIN DOOR OPEN CAS RAN QRH WAS UNABLE TO CLEAR .REPEAT WRITE UP CORRECTIVE ACTION: REPLACED THE CABIN DOOR THRESHOLD HARNESS. PERFORMED CABIN DOOR RESET PROCEDURE. IAW CE-680A AMM 52-10-00. OPS CHECK GOOD.

ATA 5270

Part: PROXIMITY SENSOR — FAULTED (ZONE 800) · airframe 458 hrs · 302 cycles

WHILE IN FLIGHT AT FL400 RECEIVED AMBER CAS MESSAGES FOR CHECK DOORS AND CABIN DOOR OPEN. THE ORANGE LIGHT FOR CABIN DOOR OPEN WAS ALSO ILLUMINATED ON THE CABIN DOOR. WE VERIFIED THE LOCKING PINS WERE IN PLACE AND FOLLOWED THE QRH WHICH REQUIRED US TO RAISE THE CABIN ALTITUDE TO 9,000 FT. THE QRH LANGUAGE STATED WE WOULD GET A CABIN ALTITUDE AMBER CAS MESSAGE AT 8500 FT. IT ILLUMINATED AT 8000FT AND THE CABIN NEVER CLIMBED ABOVE 8000FT UNTIL WE DESCENDED BELOW FL 300 EVEN THOUGH 9000 WAS CALLED FOR TROUBLESHOT FAULT IAW WITH AMM 52-00-00. CHANGED VENT DOOR PROX SWITCH SC005 IAW AMM 52-70-10. CHANGED CED MONITOR PCB NC105 IAW AMM 24-60-40 PERFORMED NECCESSARY OPS CHECKS IAW AMM 52-70-00. NO DEFECTS NOTED.

ATA 5270

Part: PCB — FAULTED (ZONE 800) · airframe 259 hrs · 166 cycles

ON CLIMB OUT, THROUGH 38,000 FT, HAD AN AMBER CHK DOORS & AMBER CABIN DOOR OPEN LIGHT. CABIN DOOR OPEN LIGHT ON DOOR HANDLE ILLUM. RAN QRH & CONTINUED TO DESTINATION UNEVENTFULLY WITH NO CHANGES. ONCE ON GROUND RECYCLED DOOR & CAS MESSAGES & HANDLE LIGHT REMAINED ILLUM. GAINED ACCESS TO CMC VEIWER & SAW CABIN DOOR VENT CAPTURED ON THE CMC FAULT MESSAGES. REMOVED CABIN DOOR STEPS & OPS DOOR HANDLE & NOTICED VENT DOOR SENSOR LIGHT OPS NORMAL & OTHER CABIN DOOR LIGHT SENSORS WERE OPS NORMAL. NORMAL IS SENSOR LIGHTS OFF WHEN DOOR HANDLE IN OPEN POSITION & ON WHEN DOOR HANDLE IN CLOSE IAW AMM 52-10-00. PERFORMED MAIN DOOR RESET OVERRIDE & SEEMED TO CLEAR DOOR OPEN MESSAGE. OPS DOOR SEVERAL TIMES & DOOR WAS OPS NORMAL. FOUND PCB WHICH WAS SENT TO BE A DIFFERENT PART NUMBER AND NOT APPLICABLE PER THE IPC. TECH REINSTALLED ORGINAL CED MONITOR PCB AND PERFORMED GOOOD OPS CHECKS. WITH THE PCB AND WIRE HARNESS CHECKING GOOD AND THE SATISFACTORY RESULTS REPORTED DURING THIS EVENT, MAINTENANCE PERFORMED IAW AMM 24-60-40. NO FURTHER ACTION REQUIRED AT THIS TIME.

ATA 2820

Part: PRESSURE SWITCH — FAULTED (FUEL SYSTEM)

SHORTLY AFTER TAKEOFF WE GOT A AMBER FUEL PRES LOW LEFT ANNUNCIATOR, WE FOLLOWED THE QRH AND TURNED THE LEFT BOOST PUMP ON, AFTER A FEW MINUTES THE LIGHT WENT OUT AS WE CONTINUED TO CLIMB..A COUPLE OF MINUTES LATER THE SAME ANNUNCIATOR CAME BACK ON AND WE DID THE SAME PROCEDURE AGAIN AND THE THE LIGHT WENT OUT AGAIN AFTER A COUPLE OF MINUTES AND REMAINED OUT FOR THE REMAINDER OF THE FLIGHT CORRECTIVE ACTION: REPLACED LH FUEL PRESSURE SWITCH. PERFORMED ENGINE RUNS AND SYSTEM OPS CHECK GOOD. ALL WORK PERFORMED IN REF. TO CE-680A AMM 73-10-05

ATA 5210

Part: SWITCH — OUT OF ADJUST (ZONE 800)

CHECK DOORS AND CABIN DOOR OPEN CAS MESSAGES DISPLAYED WHILE IN FLIGHT. ADJUSTED NOSE DOOR PLUNGER SWITCH IAW CE-680A AMM 52-70-07 OPS CHECK GOOD