N644QS

Part: NOT REPORTED — NOT REPORTED · airframe 14,010 hrs · 10,740 cycles

OXYGEN HARDWARE: OXYGEN BOTTLE IN THE RIGHT FRONT NOSE COMPARTMENT IS SAFETY WIRED INCORRECTLY. THE ON/OFF LEVER IS NOT SAFETY WIRED TO THE ON POSITION. (ON PREFLIGHT)//CORRECTIVE ACTION// SAFETIED LEVER CORRECTLY IAW CE-560XL AMM CHAPTER 35-01-01

Part: OXYGEN MASK — LEAKING (ZONE 100) · airframe 13,972 hrs · 10,715 cycles

OXYGEN LINE PN: 173382-75 WAS LEAKING AT A CRACK IN THE FITTING AT THE FORWARD PRESSURE BULKHEAD. AT THE TIME OF INSPECTION, NO REPLACEMENT LINE WAS AVAILABLE. THE LINE WAS TEMPORARILY REPAIRED PER NETJETS ENGINEERING ORDER RFTS-105980 REV. 0 DATED: 15FEB2022. COMPONENT WILL REQUIRE REPLACEMENT OR REINSPECTION ON OR BEFORE 17MAR2022.

Part: HANDLE — BROKEN (EMERGENCY EXIT) · airframe 13,630 hrs · 10,465 cycles

EMERG EXIT DOOR: EMERGENCY EXIT DOOR HAD TO BE REMOVED (THE MAIN CABIN DOOR HANDLE BROKE AND WE HAD TO GET OUTSIDE IN ORDER TO OPEN IT). WE WERE UNABLE TO FULLY REINSTALL EMERGENCY EXIT DOOR. IT IS IN PLACE BUT NOT SECURELY LATCHED. REMOVED THE EMERGENCY EXIT, INSPECTED IT FOR ANY SIGNS OF DAMAGE, NONE WAS FOUND. REINSTALLED THE EMERGENCY EXIT. CONDUCTED IAW THE CESSNA CITATION CE·560XLS AMM 52-20-0·0

Part: BATTERY — DEFECTIVE (EMERGENCY LIGHTS) · airframe 12,689 hrs · 9,775 cycles

ALL EMERGENCY EXIT SIGNS DO NOT ILLUMINATE DURING EMERGENCY LIGHT TEST INCLUDING: MAIN CABIN ENRTY SIGN, SIGNS ON EITHER SIDE OF MAIN DOOR, EXIT SIGN IN LAV, AND EXIT SIGN ON REAR CABIN WALL. SIGNOFF. REMOVED AFT EMERGENCY LIGHTING BATTERY TO LAB PLACED ON CHARGE. BATTERY WOULD NOT TAKE CHARGE AND REQUIRES REPLACEMENT. REPLACED BATTERY PN 9913-1 SN 2986 WITH OVERHAULED PN 9913-1 SN 1868. OPERATIONAL CHECKS GOOD. WORK ACCOMPLISHED IAW 560XL MM CHPT 33-50-02.

Part: SWITCH — FAILED (AIRSPEED) · airframe 10,150 hrs · 7,806 cycles

NORMAL DEPARTURE ACCELERATING THROUGH 200 KTS, NOTICED THE TRIM WHEEL BUCKED AND RAN OUT OF FORWARD TRIM. SIMULTANEOUSLY, THERE WAS EXTREME PRESSURE ON THE YOLK IN ORDER TO REMAIN LEVEL. THE STAB MISCOMPARE LIGHT ILLUMINATED MOMENTARILY. THE CREW RAN THE STAB MISS COMP CHECKLIST, AND SAFELY LANDED WITH FLAP 0. DURING POST FLIGHT, NOTICED THE HORIZONTAL STAB WAS IN THE "LAND" POSITION AND FLAPS WERE 0. REMOVED AND REPLACED AIRSPEED SWITCH. PERFORMED SATISFACTORY OPS CHECK OF THE TWO POSITION HORZORIZONTA STAB. PERFORMED SATISFATORY LEAK AND OPS CHECK OF THE AIRSPEED SWITCH IAW AMM 27-40-00

Part: BEARING — WORN (RUDDER) · airframe 6,641 hrs · 5,082 cycles

230 KNOTS IN A CLEAN CONFIGURATION THE PLANE STARTING TO VIBRATE THROUGH THE YOKE AND RUDDER PEDALS. R & R RUDDER AND ELEVATOR TRIM TAB CONTROL HORN BEARING AND BOLTS IAW MM 20-10-08. PERFORMED FREE PLAY CHECKS IAW MM 27-90-30. OPS CHECKED GOOD.

Part: SEAL — FAILED (BLEED SYS) · airframe 6,557 hrs · 5,024 cycles

BOTH ENGINE FIRE WARNING LIGHTS ILLUMINATED WHEN THROTTLES WERE MOVED FROM CRIUSE DETENT TOWARDS A LOWER POWER SETTING. THE LIGHTS ILLUMINATED FROM TOP OF DECENT UNTIL 3,000 FT WHEN THE THROTTLES WERE MOVED OUT OF THE IDLE POSITION. LIGHTS REMAINED OUT FOR REMAINDER OF DECENT. INSPECTED AND WRANG BOTH LEFT AND RIGHT FIRE DETECT SYSTEMS, NO DEFECTS NOTED AT THIS TIME. FOUND 80 DEG ITT SPLIT AT CRUISE. FOUND MASSIVE BLEED LEAK ON BLEED LINE. FOUND SEALS BLOWN OUT. REMOVED AND REPLACED BAD SEALS. RAN ENGINES FOUND BOTH ENG'S ITT MATCH AT 580 AT CRUISE. NO LEAKS FOUND ON LEFT ENGINE. REINSTALLED COWLS. SYSTEM OP'S CHECKED SATISFACTORY AT THIS TIME. ALL WORK DONE IAW MM 36-11-00.

Part: SUPPORT CHANNEL — CRACKED (FWD CARGO DOOR) · airframe 5,914 hrs

DURING A SCHEDULED INSPECTION, FOUND THE FWD CARGO DOOR HINGE SUPPORT CHANNEL CRACKED IN SEVERAL PLACES. THIS ACFT HAD SB560XL-52-13 INSTALLED AT THE FACTORY, AND STILL HAD CRACKS IN THE SUPPORT CHANNEL.

Part: BULB — INOPERATIVE (INDICATION SYS) · airframe 5,420 hrs · 4,148 cycles

NOSE GEAR DID NOT INDICATE DOWN AND LOCKED WHEN ON APPROACH AND GEAR HANDLE DOWN. INSPECTED AND R & R ALL GREEN DOWN AND LOCKED INDICATOR LIGHT BULBS. RESET BLOWDOWN BOTTLE, JACKED AND PERFORMED GEAR SWINGS AS REQUIRED. SERVICED AND SAFETIED GEAR BLOW DOWN BOTTLE IAW MM 32-61-00 32-01-00. BLED GEAR HYD SYS IAW MM 32-01-00 GEAR HYD SYS ADJUSTMENT/ TEST.

Part: TIRE — FLAT (NLG) · airframe 4,753 hrs · 3,615 cycles

DURING LANDING ROLL THERE WAS A VIBRATION FELT FROM THE NOSE GEAR. THE AIRPLANE WAS STOPPED JUST OFF THE RUNWAY AND AN INSP REVEALED THE NOSE GEAR TIRE WAS FLAT. R & R NLG WHEEL ASSY IAW MM 32-41.

Part: ACTUATOR — MALFUNCTIONED (LT MLG) · airframe 2,563 hrs · 1,944 cycles

SELECTED GEAR DOWN LT MAIN NO GREEN ANNUNCIATOR AND RED UNLOCK ANNUNCIATOR ON. REMOVED ACTUATOR P/N 9912537-3 S/N 0760. CLEANED AND INSPECTED GEAR ASSY. INSTALLED REPAIRED ACTUATOR P/N 9912537-3 S/N 0441. RESERVICED N2. CHECKED CAMBER, OPS CK OF GEAR GOOD. ALL IAW MM 32-30-04, 32-10-00. 12-13-01.

Part: CONNECTOR — DIRTY (MLG) · airframe 2,415 hrs · 1,836 cycles

SELECTED GEAR DOWN AND RECEIVED A DOWN INDICATION FOR RT MAIN AND NOSE ONLY. RED UNLOCK LIGHT ILLUMINATED ACCOMPANIED WITH NO LT MAIN INDICATION. SERVICED GEAR BLOW DOWN BOTTLE AND SAFETIED AS REQUIRED. BLEED MLG HYD SYSTEM. T/S LANDING GEAR SYSTEM. CLEANED LT MLG DOWNLOCK SWITCH CONNECTOR. SWUNG GEAR OVER 16 CYCLES WITH NO ISSUES. FROZE DOWNLOCK SWITCH MULTIPLE TIMES WITH FREEZE SPRAY, SWUNG GEAR WITH NO FAILURES OF LANDING GEAR SYSTEM/ OPS CHECK GOOD. IAW CE 560 XLS M/M 12-13-01 AND 32-30-00.

Part: BULB — INOPERATIVE (MLG INDICATOR) · airframe 1,948 hrs · 1,490 cycles

WHEN LOWERING GEAR FOR LANDING, NOSE LIGHT DIDN'T ILLUMINATE. RED UNSAFE LIGHT WAS OUT AND BOTH MAIN LIGHT ILLUMINATED. PERFORMED CHECKLIST PROC. AND ACTIVATED BLOW DOWN SYSTEM. REMOVED AND REPLACED BOTH LIGHT BULBS FOR NOSE LIGHT INDICATION. OPS CHECKS GOOD. BLED LANDING GEAR SYSTEM AND RESAFTIED BOTTLE, SERVICED BOTTLE IAW MM 32-30-00, 33-10-02, 12-13-01.