N634QS

Part: UNKNOWN — UNKNOWN (UNKNOWN) · airframe 15,626 hrs

CABIN EMERG LIGHT: BOTH FORWARD AND AFT HALF OF THE EMERGENCY LIGHTING SYSTEM EXIT SIGNS APPEARED DIM. CHECKED LIGHTS ON EMERGENCY BATTERIES ONLY AND ALL LED EXIT SIGNS ARE UNLIT. PLEASE EVALUATE BOTH BATTERY PACKS FOR EMERGENCY LIGHTING. REMOVED DEFECTIVE AFT EMERGENCY LIGHT BATTERY (PN: 9913-1, SN: 2565) AND INSTALLED CUSTOMER SUPPLIED TESTED EMERGENCY LIGHT BATTERY (PN: 9913-1, SN: 2178 REF 560XL AMM 33-50-01. REMOVED DEFECTIVE FWD EMERGENCY LIGHT BATTERY (PN: 9913-1, SN:2839) AND INSTALLED CUSTOMER SUPPLIED TESTED EMERGENCY LIGHT BATTERY (PN: 9913-1, SN:2075,TOP CHARGED AND OPS CHECK GOOD REF 560XL AMM 33-50-01

Part: PIN — OUT OF ADJUST · airframe 15,269 hrs · 11,812 cycles

MAIN DOOR TELESCOPING ROD: ENTRY DOOR IS EXTREMELY DIFFICULT TO OPEN. THE DOOR PINS APPEAR TO NOT BE RETRACTING ALL THE WAY. // SIGNOFF// OPERATED THE DOOR AND DISCOVERED THE PINS BINDING AND A INTERFERENCE FIT ON THE TOP FWD SIDE OF THE DOOR. REMOVED THE DOOR STEPS AND GAINED ACCESS TO THE PINS PUSH ROD MECHANISM, CLEANNED AND LUBED DOOR PINS, REMOVED THE DOOR FRAME INTERIOR PANEL AND LUBED THE PRE-CATCH CABLE. WORK PERFORMED IAW CE-560XLS SPM 20-00-00.0PS CHECK GOOD. INSTALLED THE INTERIOR DOOR PANELS AND MED DOOR STEPS. OPERATIONAL CHECK OF ASSOCIATED LIGHTS IS SATISFACTORY

Part: NOT REPORTED — NOT REPORTED · airframe 14,591 hrs · 11,302 cycles

NLG LANDING GEAR RETRACTION: INFLIGHT, AFTER GEAR RETRACTION RED UNLOCK LIGHT REMAINS ILLUMINATED. ALL 3 GREEN DOWN LIGHTS WERE EXTINGUISHED.//CORRECTIVE ACTION//JACKED UP AIRCRAFT. CHECKED NOSE STRUT EXTENSION AND FOUND TO BE AT THE CORRECT DIMENSION OF 9.1 INCHES. HOOKED UP THE MULE AND COMPLIED WITH SEVERAL GEAR SWINGS NO ISSUES NOTED IAW CE-560XL AMM 32-30-00. ADJUSTED SWITCH AS REQUIRED IAW CE-560XL AMM 32-61-00. SERVICED HYDRAULIC RESERVOIR IAW CE-560XL AMM 12-12-01. RETURNED AIRCRAFT TO ORIGINAL CONDITION

Part: UPLOCK SWITCH — ABNORMAL (ZONE 700) · airframe 14,468 hrs · 11,212 cycles

NLG LANDING GEAR UNLOCK LIGHT: AFTER TAKEOFF WE GOT AN UNLOCK RED ANNUNCIATOR AFTER GEAR RETRACTION. SOON AFTER A STAB MISCOMPARE AND HYD PRESS AND MASTER CAUTION ANNUNCIATORS CAME ON. WE RAN THE GEAR ABNORMAL CHECKLIST. WE EXTENDED THE LANDING GEAR AND THE UNLOCK LIGHT EXTINGUISHED. WE DID NOT BLOW THE GEAR DOWN WITH THE EMERGENCY EXTENSION. WE DECLARED AN EMERGENCY, DID A FLYBY WITH THE TOWER AND LANDED AS NORMAL. // SIGNOFF// POWERED OP' AIRCRAFT AND VERIFIED 3 GRFEH ON THE LANDING GEAR INDICATION, CHECKED HYDRAUUC SERVICING TO : VERIFY PROPER SERVLCNG. NO HYDRAUUC LEAKS NOTED AND HYDRUAUC RESERVOIR WAS SERVICED PROPERLY •. PERFORMED GROUND RUNS•ON BOTH THE LH AND RH ENGINES TO VERIFY OPERATION OF THE ENGINE DRIVEN HYDRAUC • PUMPS. SOM PUMPS' WERE OPERATING NORMALLY WITH NO DEFECTS. HAD. AIRCRAFT MOVED INTO HANGAR. JACKED AIRCRAFT .A.ND PERFORMED· LANDING GEAR FUNCTIONAL CHECKS. ALL FUNCTIONAL CHECKS WERE GOOD. PERFORMED . WIRING CHECKS ON APU. THE F.AND~NG GEAR L.LPLOCK SWITCHES AND FOUND THE RESISTANCE VERY HJGH AND SHORTING ) OUT •. PLACED UPLOCK SWITCH ON ORDER WITH MCC. REMOVED AND INSTALLED A NEW RH MLG UPLOCK SWITCH. PERFORMED LANDING GEAR FUNCT10NAL CHECKS WITH NO DEFECTS NOTED. DOWNJACKED .AIRCRAFT AND SERVICED HYDRAUUCS. IAW: C£:.S60XLS MM 32·3G-M IAW': CE-560XLS WT>M 32•30,..01 ' IAW; CL:•560XL.S MM3'.2-01--00'

Part: COALESCER BAG — DIRTY (ESC) · airframe 13,617 hrs · 10,605 cycles

AIR CONDITIONING COMPRESSOR: WITH APU BLEED AIR RUNNING, THERE WAS A DIRTY SOCK SMELL IN THE AFT CABIN AREA. POWERED UP AIRCRAFT WITH APU. CONFIRMED WITH APU BLEED AIR THERE IS A SMELL TO THE AIR COMING FROM THE DUCTS. ACCOMPLISHED TC-5XL-21-120902M ENVIRONMENTAL CONTROL SYSTEM (ECS) DUCT BURN OUT USING LATEST REVISION ON COMPLY365. POWERED DOWN AIRCRAFT AND GAINED ACCESS TO COALESCER. CLEANED OUT THE COALESCER SOCK AND COALESCER HOUSING. PUT EVERYTHING BACK TO ORIGINAL. LEAK CHECKS GOOD ON GROUND AND NO SMELL FROM THE DUCTS. WORK DONE IRW CE-560XLS MM 21-51-00.

Part: SEAL — MALFUNCTIONED (PAX DOOR) · airframe 13,398 hrs · 10,458 cycles

MAIN CABIN DOOR WOULD NOT OPEN FOR APPROXIMATELY 3 MINUTES DUE TO ACOUSTIC SEAL NOT DEFLATING. WE WERE ABLE TO OPEN THE DOOR USING MORE FORCE THEN TYPICALLY NEEDED TO DEPLANE PAX. SIGN OFF. INSPECTED/CHECKED CABIN DOOR SEAL AND VALVE OPERATIONS, NO DEFECTS NOTED. PURGED DOOR SEAL BY INFLATION/DEFLATION OF DOOR SEAL WITH DRY NITROGEN SEVERAL TIMES. RAN APU & ENGINES TO PERFORM ADDITIONAL PURGES AND OPERATIONS CHECKS ON CABIN DOOR SEAL. RAN ENTRY DOOR SEAL THROUGH SEVERAL MORE CYCLES. OPERATIONS CHECKS GOOD. MX IAW CE560XLS MM52-10-04.

Part: UPLOCK SWITCH — OUT OF ADJUST (RT MLG) · airframe 13,260 hrs · 10,340 cycles

AFTER TAKEOFF THE LANDING GEAR WOULD NOT RETRACT. THE RED UNLOCK LIGHT WAS ILLUMINATED AND THE GREEN NOSE GEAR LIGHT WERE ILLUMINATED, BUT THE LT AND RT GREEN LIGHTS WERE EXTINGUISHED. WE COMPLETED THE QRH AND NO CIRCUIT BREAKERS WERE POPPED. WE RETURNED TO THE AIRPORT AND LANDED NORMALLY. SIGNOFF. CLEANED ALL THE LANDING GEAR UP LOCK SWITCH CONNECTORS. PLACED THE A/C ON JACKS AND PERFORMED MULTIPLE GEAR SWINGS. THE LANDING GEAR DOWN AND LOCKED LIGHTS CAME ON AND OFF AS SUPPOSED TO. BLEED THE HYDRAULIC SYSTEM AND SERVICED THE HYDRAULIC RESERVOIR. SERVICED THE EMERGENCY GEAR EXTENSION PNEUMATIC BOTTLE TO FULL. CHECKED THE LANDING GEAR UP LOCK SWITCHES FOR PROPER RIGGING AND FOUND THE RT MLG UPLOCK SWITCH TO BE OUT OF RIG. ADJUSTED THE RT MLG UPLOCK SWITCH AND PERFORMED MORE GEAR SWINGS TO CONFIRM OPERATION. OPS CHECKS GOOD ALL WORK DONE IAW CE-560XL AMM CH 32-30-05,12-12-01.

Part: UNKNOWN — ODOR (COCKPIT & CABIN) · airframe 12,713 hrs · 9,931 cycles

DURING DEPARTURE WITH APU ON AND APU BLEED AIR ON , HAD A STRONG SMELL OF JET A COMING THRU VENTS IN CABIN. AND COCKPIT. WE SHUT THE APU AND BLEED AIR OFF AND SMELLED REMAINED. WE TURNED THE SOURCE TO OFF TO ISOLATE, THE SMELL OF JET A STOPPED AFTER SOURCE WENT TO OFF POSITION. OPENED APU ENCLOSURE. INSPECTED APU COMPONENTS AND SURROUNDING DUCTING FOR SIGNS OF LEAKS WITH DEFECTS NOTED.PERFORMED APU RUNS FOLLOWED TURNING ON BLEED AIR SYSTEM. AT THE BEGINNING THERE WAS A HINT OF JET OR OIL SMELL . RAN THE APU FOR ABOUT 20 MINS AND COULD NOT REPLICATE THE SMELL SEEM TO HAVE DISSIPATE DURING THE RUN TIME. INSPECTED APU FUEL MANIFOLDS AND LINES FOR SIGNS OF LEAKS, NONE NOTED. PERFORMED HIGH POWER ENGINE RUNS, SELECT THE SOURCE TO NORMAL POSITION, DID NOT NOTICE ANY FOUL SMELLS, RAN LR & RH ENGINE INDIVIDUALLY WITH NO SMELL NOTICED. OPS CHECKED DEICE SYSTEMS COULD NOT DUPLICATE SMELLS.

Part: COFFEEMAKER — FAILED (GALLEY) · airframe 10,566 hrs · 8,224 cycles

ON DESCENT INTO DESTINATION, SMELLED AN ODOR. ON SHUTDOWN THE COFFEE POT AS WELL AS THE WATER POT WERE EXTREMELY HOT WITH THE SWITCHES IN THE OFF POSITION. INSPECTED SWITCHES, WIRING AND CONNECTORS FOR UPPER AND LOWER HOT LIQUID TANKS. NO DEFECTS NOTED. FOUND COFFEE CONTAINER TO GET EXTREMELY HOT. REPLACED COFFEE CONTAINER WITH AN OVERHAULED UNIT. OPS CHECKED SATISFACTORY. COMPLETED IAW MM 25-00-00.

Part: OUTFLOW VALVE — FAILED (CABIN PRESSURE) · airframe 10,484 hrs · 8,159 cycles

AT FL400 CABIN ALTITUDE WARNING ILLUMINATED. CABIN ALT INCREASED TO FL 200. CABIN ALTITUDE STABILIZED PASSING 10000 FEET. ACCOMPLISHED PRESSURE CHECK OF SERVICE AIR SYSTEM AT OUTFLOW VALVE AND FOUND SYSTEM TO PROVIDE 23 PSI WHICH IS CORRECT. ACCOMPLISHED ELECTRICAL OPS CHECK OF OUTFLOW VALVE AT CONTROLLER IAW MM 21-30-00 REV. 41. RECOMMENDATION WAS TO REPLACE PRIMARY OUTFLOW VALVE. REMOVED OUTFLOW VALVE AND INSTALLED OUTFLOW VALVE IAW MM 21-30-00.

Part: ENGINE — MALFUNCTIONED (RIGHT) · airframe 10,206 hrs · 7,963 cycles

RIGHT ENGINE HAD A LOUD BANG AND RED LINED ITT AT ABOUT 500' AFTER TAKEOFF. REDUCED POWER TO IDLE. ENGINE CONTINUED TO RUN AT IDLE WITH AN ITT ABOUT 600 AND A LOUD WHINE. CONTINUED WITH IN FLIGHT PRECAUTIONARY SHUTDOWN. ENGINE VIBRATION ANNUNCIATOR WAS ALSO ON. R & R RT ENGINE IAW AMM 72-00-00. OPS AND LEAK CHECKED.

Part: UNKNOWN — ODOR (CABIN) · airframe 8,777 hrs · 6,871 cycles

AFTER ROTATION & TAKEOFF THERE WAS A STRONG PLASTIC SMELL THAT SEEMED TO BE COMING FROM WEMACS. APU WAS SHUT OFF PRIOR TO TAKEOFF. AT 2000' MSL RE-ENTERED THE PATTERN & LANDED UNEVENTFULLY. SMELLED SEEMED TO DISSIPATE WHEN WEIGHT WAS ON WHEELS. RAN APU WITH BLEED AIR ON, OBSERVED NO SMELLS. RAN EACH ENG INDIVIDUALLY AT POWER WITH NO OBSERVANCE OF SMELL. PUT SQUAT SWITCHES IN FLIGHT CONDITION & RAN EACH ENG AT POWER WITH NO OBSERVANCE OF SMELL. RAN HEAT UP IN BOTH CABIN & COCKPIT SYSTEMS & OBTAINED NO OBSERVANCE OF SMELL. PULLED THE WATER SEPARATOR SOCK & FOUND IT TO BE DIRTY BUT DRY & NO SMELL. COMPLIED WITH LAW 21-60-00 & 21-51-00 OF THE MM. MCC IS SENDING A SOCK TO REPLACE THIS ONE. R & R WATER SOCK PN 83237-12 WITH NEW SOCK PN 83237-12. LEAK & OPERATIONS CHECKED GOOD IAW AMM 21-60-00.

Part: TRIMMER — LOOSE (ELEVATOR) · airframe 6,378 hrs · 5,000 cycles

AFTER TAKEOFF, ACFT WANTED TO PITCH UP EXCESSIVELY. WITH GEAR AND FLAPS UP AND APPROX 170 KIAS, YOKE REQUIRED APPROX 50LBS FORCE TO HOLD YOKE FORWARD. MANUALLY ROLLED PITCH TRIM WHEEL FULL FORWARD WHICH ZEROED CONTROL FORCES ON YOKE. AFTER LANDING FOUND PITCH TRIM WHEEL BINDING AND WOULD NOT MOVE "NOSE UP" PAST AFT TAKEOFF REF LINE. FOUND ELEVATOR TRIM WHEEL LOOSE AND POINTER OUT OF ADJUSTMENT. ADJUSTED POINTER AND SECURED TRIM WHEEL ATTACH SCREWS IAW MM 27-32-01 & 27-31-00. ALL OPS AND TRAVEL CHECKED GOOD.

Part: ACTUATOR — FAILED (MLG) · airframe 5,054 hrs · 3,959 cycles

ON TAXI OUT, GEAR WARNING SOUNDED. LOOKED DOWN AT THE GEAR POSITION INDICATIONS TO SEE THE RT GREEN GEAR LIGHT OUT, AND THE RED UNLOCK LIGHT ILLUMINATED. ACFT WAS STOPPED STRAIGHT AHEAD, WARNING HORN CEASED, AND AGAIN HAD 3 GREEN AND NO RED LIGHTS. ACFT WAS TOWED BACK TO HANGER. FOUND RT MLG ACTUATOR DOWNLOCK SWITCH RESISTANCE HIGH, R & R RT MLG ACTUATOR IAW MM 32-30-04. OPS AND LEAK CHECKED GOOD.

Part: LAMP — INTERMITTENT (MLG INDICATOR) · airframe 4,373 hrs · 3,440 cycles

ON APPROACH, LT MAIN GEAR DOWN INDICATOR DID NOT ILLUMINATE. ACCOMPLISHED ABNORMAL "GEAR WOULD NOT EXTEND" CHECKLIST. BOTTLE WAS DISCHARGED IAW CHECKLIST; UNEVENTFUL LANDING. NO LT GEAR INDICATION UNTIL AFTER LANDING. AN INSPECTION FOUND LT MAIN GEAR DOWN INDICATOR TO BE LOOSE IN THE SOCKET CAUSING THE LAMP TO BE INTERMITTENT. REPLACED BOTH BULBS, SERVICED AND RESET EMERGENCY BOTTLE IAW MM 33-10-08 AND 12-13-07. ALSO, RAN FLAPS AND BOTH ENGINE T/RS WITH NO DEFECTS NOTED.

Part: DISPLAY — FAILED (COCKPIT) · airframe 4,315 hrs · 3,372 cycles

PFD 1 FAIL ANNUNCIATOR ILLUMINATED INFLIGHT FOLLOWED BY FLICKERING PFD 1. SHORTLY THEREAFTER, DETECTED BURNED ELECTRICAL ODOR AND, AFTER LANDING, VISIBLE SMOKE. REMOVED PILOTS PFD AND FOUND IT TO SMELL SMOKEY INSIDE FROM VENT HOLES. REPLACED WITH REPAIRED UNIT IAW MM 34-26-00. OPS CHECK GOOD AT THIS TIME.

Part: METERING VALVE — INOPERATIVE (BRAKE SYSTEM) · airframe 3,393 hrs · 2,625 cycles

WHILE TAXIING, THE LT TOE BRAKE WENT TO THE FLOOR (LOSS OF LT TOE BRAKE) DURING A LT PIVOT TURN (FULL LT RUDDER) TO PARK ON THE RAMP. RT TOE BRAKE WAS NORMAL FROM LT SEAT. TROUBLESHOT TO BAD METERING VALVE. REMOVED BAD METERING VALVE AND INSTALLED A NEW BRAKE METERING VALVE. BLED SYS. TAXIED ACFT FROM BOTH SEATS. NO DEFECTS NOTED. BRAKE SYS OPS CHECK GOOD AT THIS TIME. DONE IAW MM 32-44-00.

Part: AIR DUCT — CRACKED (BLEED AIR SYS) · airframe 3,328 hrs

DURING A PHASE 1-4 INSPECTION THE PRECOOLER EXHAUST DUCT WELD ASSEMBLIES WERE FOUND TO BE CRACKED IN THE LEFT AND RIGHT PYLON. THE LEFT HAD TWO CRACKS AND THE RIGHT HAD THREE CRACKS. A SERVICE CONDITION REPORT HAS BEEN SENT TO CESSNA UNDER #362539 FOR THE LEFT AND #362553 FOR THE RIGHT.

Part: BRAKE ASSY — MALFUNCTIONED (MLG) · airframe 2,811 hrs · 2,198 cycles

CO-PILOTS RT BRAKE FADES TO STOP AND WILL NOT HOLD . TAXIED AIRCRAFT AROUND RAMP AND PERFORMED SEVERAL BRAKE CHECKS USING PILOT'S AND CO-PILOT'S BRAKES WITH NO DEFECTS NOTED. MADE SEVERAL TURNS USING AIRCRAFT RUDDER PEDALS ONLY WITH NO DEFECTS BEING NOTED. INSPECTED BRAKE SYSTEM FOR LEAKS, WEAR AND DAMAGE AND FOUND NO DEFECTS AT THIS TIME, NO DEFECTS ARE NOTED WITH THE BRAKE SYSTEM. ALL WORK PERFORMED IAW CESSNA CITATION 560XLS AMM CH 32-40-01.

Part: INDICATION SYS — MALFUNCTIONED (MLG) · airframe 2,078 hrs · 1,605 cycles

NO (GREEN) LIGHT ON RT MAIN LANDING GEAR UPON EXTENSION. EMERGENCY PROCEDURES FOLLOWED AND BOTTLE WAS BLOWN, STILL NO GREEN LIGHT.

Part: TIRE — DAMAGED (NLG) · airframe 1,655 hrs · 1,317 cycles

NOSE WHEEL HAS DAMAGED TREAD FOLLOWING SEVERE SHIMMY AT 40 KTS DURING TAKEOFF ROLL. NOSE WHEEL STEERING PIN WAS NOT INSTALLED. REMOVED AND REPLACED NOSE WHEEL AND TIRE ASSY IAW MM 32-41-01 SERVICED TIRE TO CORRECT PRESSURE.

Part: WARNING LIGHT — ILLUMINATED (COCKPIT) · airframe 1,323 hrs · 1,027 cycles

AT 85 KNOTS, LT ENGINE OIL PRESS ILLUMINATED ON T/O ROLL WITH MASTER WARN LIGHT. PSI INDICATED ZERO AND O/T ABORTED. TURNING OFF RUNWAY WITH ENGINES AT IDLE, BOTH ENGINES APPEARED TO HAVE NORMAL PSI. ENGINE WAS SHUTDOWN AFTER TURNING OFF RUNWAY. OIL LEVEL WAS NORMAL ON PREFLIGHT AND NO INDICATIONOF LEAK. ITEM IS UNDER INVESTIGATION.