N971QS

Part: UNKNOWN — ODOR · airframe 806 hrs · 559 cycles

DURING PREFLIGHT IN THE AE BAY NOTICE A BURNT ELECT ODOR IN AFT COMPARTMENT. ODOR IS CONSISTENT WITH A BURNING PLASTIC OR WIRE ODOR. UNABLE TO VERIFY. PERFORMED ODOR CHECK AROUND ALL ACFT BAY, FWD & AFT AVIONICS BAY & BEHIND THE SCREENS. PERFORMED VISUAL INSP FOR BURN WIRES & CHKD ALL GROUND TERMINALS ON FWD & AFT ELECT BAY. FOUND NO DAMAGE OR BURN ODOR. CHECKED ALL CB FOR TRIP OR DAMAGE FROM BURN CONNECTIONS, NO FINDINGS. PERFORMED OPS TEST OF ALL ACFT INTERIOR SYS & CHK FOR TRIP CB, CHKD COFFEE MAKER, CHECKED ALL OUTLETS & SCREENS, CHECKED TOILET & INTERIOR LIGHTSL, NO DEFECTS. CHKD EXTERIOR LIGHTS & EMERG LIGHTS FOR DAMAGE OR BURN ELECT ODOR, NO FINDINGS. CHKD & RAN HYD PUMP & ALL ELECT MOTORS ON FLAPS & STAB ACTUATORS, CHECK FOR TRIP CB OR BURN ELECT ODOR, NO FINDINGS. OPS TEST OF ALL ACFT SYS FOR MORE THAN 4 HRS CONSECUTIVE WITH NO ELECTRICAL BURN ODOR FOUND IN CABIN OR ACFT BAYS. PERFORMED VISUAL INSP & OPS TEST OF ELECT COOLING FANS BEHIND SCREENS & CHKD NO FINDINGS. ALL WORK IAW AMM 21-10-00, 21-25-00, 24-30-01, 33-10-00, 33-40-00, 33-40-45, 33-50-00, 29-20-00.

Part: WARNING LIGHT — ILLUMINATED (ZONE 800) · airframe 556 hrs · 380 cycles

AFTER START AND DURING TAXI OUT, HAD A AMBER CABIN DOOR OPEN LIGHT ILLUMINATE. RAN APPROPRIATE CHECKLIST. WITH NO JOY ON THE CHECKLIST WHILE PERFORMING STEP 4 DOOR LIFT-CANCEL BUTTON PRESS ON HOLD. WE WERE UNABLE TO GET THE OVERRIDE LIGHT TO FLASH. LEADING US TO BELIEVE THAT WE COULD NOT RESET THE DOOR.

Part: PUMP — LEAKING (HYD SYSTEM) · airframe 10,791 hrs · 6,650 cycles

DURING FLIGHT AT FL410, LEFT HYD QTY AT 22 PERCENT. NOTICED 1 PERCENT DROP EVERY 3 MINUTES. AT 19 PERCENT, AMBER CASS MESSAGE HYD VOLUME LOW ILLUMINATED. CONDUCTED CHECKLIST. HAD TO BLOW DOWN GEAR FOR LANDING AND USE THE EMERGENCY BRAKE UNTILL STOPPED. R & R LEAKING LEFT HYD PUMP IAW MM 25-10-02. OPS AND LEAK CHECKED GOOD.

Part: ACM — SEIZED · airframe 9,872 hrs · 6,121 cycles

COCKPIT HAS BURNED SMELL AND VISIBLE SMOKE WITH APU ON AND ISOLATION VALVE OPEN. SMELL AND SMOKE SEEMED TO DISIPATE WHEN PACS SHUTOFF AND REAPPEARED WHEN TURNED AGAIN. REMOVED ACM. FOUND SHAFT DIFFICULT TO TURN. INSTALLED REPAIRED ACM AFTER PRE-LUBING ACM. REINSTALLED DUCTING OPS AND LEAK CHECK DUE OPS AND LEAK CHECK GOOD. WORKED MM 21-51-00.

Part: COALESCER BAG — DIRTY (CABIN AIR) · airframe 9,721 hrs · 6,011 cycles

EXTREME FUEL SMELL COMING OUT OF WEMACS WHEN APU RUNNING WITH BLEED ON. REPLACED LT AND RT COALESCER SOCKS IAW CHAPTER 12-10-01 750 MM. LEAK AND OPS CHECKS GOOD.

Part: COALESCER BAG — DIRTY (CABIN) · airframe 9,672 hrs · 5,984 cycles

ACFT HAS DIRTY SOCK ODOR. CLEANED BOTH COALESCER SOCKS AND RAN APU. NO FURTHER DEFECTS NOTED. REF: MM SEC 12-10-01.

Part: WARNING LIGHT — ILLUMINATED (SLAT ANTI ICE) · airframe 9,592 hrs · 5,943 cycles

SLAT ANTI ICE RT EICAS MESSAGE ON IN CRUISE POWER AT FL310.

Part: MANIFOLD — INOPERATIVE (MLG) · airframe 9,540 hrs · 5,915 cycles

LANDING GEAR DID NOT EXTEND NORMALLY WHEN SELECTED, ONLY UNSAFE LIGHT ILLUMINATED. NO GEAR ASSOCIATED NOISE OR ACTIVITY NOTED. GEAR DID EXTEND USING BLOW DOWN PROCEDURE. R & R LANDING GEAR CONTROL MANIFOLD IAW 750 MM 32-30-02. OPS & LEAK CHECKS ARE GOOD.

Part: COALESCER BAG — ODOR (A/C PACK) · airframe 8,988 hrs · 5,550 cycles

BAD ODOR COMING FROM CABIN AND COCKPIT PACS. REMOVED AND REPLACED LT & RT COALESCERS IAW AMM 12-10-01-160 LEAK AND OPS CHECK GOOD WITH NO FURTHER DEFECTS NOTED. P/N 21BC115, NSN

Part: VALVE — OUT OF ADJUST (PAX DOOR SEAL) · airframe 8,835 hrs · 5,449 cycles

AMBER CABIN DOOR SEAL LIGHT CAME ON AFTER TAKEOFF LEVELED OFF AT 9000. ON APPROACH IT WENT OUT AFTER BEING AT 3000 FT FOR A FEW MINTUES. OPENED CABIN STEPS AND AFT SURROUND OF MAIN CABIN DOOR FOR ACCESS TO INFLATION/DEFLATION VALVES. FOUND MAIN CABIN DOOR DEFLATION VALVE OUT OF ADJUSTMENT AND LOOSE, NOT CLOSING ALL THE WAY. ADJUSTED VALVE IN REF TO MM 52-10-04. LEAK CHECK AND OPS CHECK NORMAL 12/20/08 CLOSED STEPS AND AFT DOOR SURROUND.

Part: WARNING LIGHT — ILLUMINATED (PAX DOOR) · airframe 8,835 hrs · 5,449 cycles

AMBER CABIN DOOR SEAL LIGHT CAME ON AFTER TAKEOFF.

Part: LANDING GEAR — MALFUNCTIONED (RIGHT) · airframe 7,641 hrs · 4,749 cycles

RT MAIN LANDING GEAR DID NOT SHOW GREEN DOWN AND LOCKED INDICATION WHEN GEAR WAS SELECTED DOWN. IAW CHECKLIST: GEAR DOWN BOTTLE HANDLE WAS PULLED AND MAIN MANUAL RELEASE HANDLE PULLED. [08-23-07] RESET N2 BOTTLE, RESET LANDING GEAR CONTROL MANIFOLD, PURGED GEAR SYSTEM OF AIR CYCLED GEAR 20 TIMES WITH NO DEFECTS NOTED. OPERATIONAL CHECK GOOD PER 750 MM CH 32-00-01.

Part: FLOAT SWITCH — INTERMITTENT (LT&RT WING) · airframe 7,396 hrs · 4,602 cycles

HAD A RED (NO TAKEOFF) AFTER BRAKE RELEASE BELOW 30 KNOTS. REMOVED AND REPLACED BOTH FUEL LOW LEVEL FLOAT SWITCHES IAW MM 28-20-07. OPS CHECKS, LEAK CHECKS GOOD.

Part: UNKNOWN — UNKNOWN (RUDDER) · airframe 7,364 hrs · 4,584 cycles

WHEN RAISING FLAPS , YELLOW FLAP EICAS MESSAGE (RUDDER LIMIT FAIL - A) ILLUMINATED. FLIGHT CONTROL PAGE INDICATED 89 PERCENT RUDDER AVAILABLE. REMOVED AND REPLACED UPPER LIMITER ACTUATOR IAW 750 MM 27-30-00

Part: SQUAT SWITCH — OUT OF RIG (NLG) · airframe 7,362 hrs · 4,582 cycles

UPON T/O MEM, GEAR WOULD NOT RETRACT. RETRACTED HANDEL INIATIALLY. RED GEAR LITE CAME ON, GEAR DID NOT COME UP. PLACED GEAR HANDEL DOWN , 3 GREEN NO RED , RETURNED TO MEM.FOUND NOSE GEAR SQUAT SWITCH OUT OF RIG. RIGGED NOSE GEAR SQUAT SWITCH IAW CESSNA 750 MM 32-60-00. GEAR OPS CHECK GOOD ON NUMEROUS CYCLES.

Part: HOOK — OUT OF ADJUST (MLG UPLOCK) · airframe 7,295 hrs · 4,546 cycles

LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. GEAR HANDLE WOULD NOT MOVE TO "RETRACT POSITION". GEAR HANDLE LOCKED IN DOWN POSITION INFLIGHT. ADJUSTED NLG UPLOCK HOOK ASSY IAW 400A M/M 32-20-00. OPS CHECKED GOOD

Part: STRUT — DISCHARGED (NLG) · airframe 7,290 hrs · 4,543 cycles

LANDING GEAR WOULD NOT RETRACT AFTER TAKEOFF. GEAR HANDLE WOULD NOT RAISE. PERFORMED GEAR SWING 10 TIMES GEAR OPS CHECKED GOOD ALL 10 TIMES. FOUND NOSE STRUT LOW ON SERVICE. SERVICED NOSE STRUT IAW CE-750 M/M CHPT 12-10-38. PERFORMED GEAR SWING 5 MORE TIMES OPS CHECK GOOD.

Part: LINE — RUPTURED (HYDRAULIC SYS) · airframe 7,141 hrs · 4,456 cycles

AFTER GEAR RETRACTION RECIEVED A NOSE GEAR GREEN LIGHT AND GEAR UNSAFE LIGHT. THE FOLLOWING CAS MESSAGE WERE PRESENT, HYDRAULIC VOLUME LOW "A" HYDRAULIC PUMP FAIL "A" & HYDRAULIC PTU FAIL. "A" SIDE QUANTITY ZERO AND FLUID VISIBLE ON BOTH SIDES OF FUSELAGE. NOSE WHEEL STEERING HOSE REMOVED AND REPLACED IAW CESSNA CITATION 750 MAINTENANCE MANUAL CHAP 12-10-15. BRAKE SYSTEM BLED IAW 750 MM CHAP 32-42-00 & HYDRALIC SYSTEM BLED IAW 750 MM 29-10-00. OPERATIONAL & LEAK CHECKS GOOD.

Part: WINDSHIELD — FAILED (COCKPIT) · airframe 6,881 hrs · 4,305 cycles

DURING DESCENT THROUGH FL250, THE WINDSHIELD HEAT INOP, R CAS MESSAGE ILLUMINATED. THE RIGHT WINDSHIELD SHATTERED WITHIN 10 SECONDS OF CAS. THERE WAS ARCHING AND BURNING ON THE WINDSHIELD. RAN THE SHATTERED WINDSHIELD CHECKLIST (N1) AND ARCING/BURNING STOPPED. LANDED UNEVENTFUL. REPLACED AND OPS CHECKED RT WINDSHIELD IAW 750 MM 56-11-00.

Part: UPLOCK HOOK — STICKING (LG RETRACT SYS) · airframe 6,259 hrs · 3,924 cycles

SEVERAL NOSE GEAR BUMPS FELT IN FLIGHT. FOUND MLG UPLOCK HOOKS STICKING. CLEANED AND LUBED UPLOCK HOOKS IAW CE750 MM CHAPTER 32-30-05. OPS CHECK GOOD. ACCOMPLISHED CITATION X GEAR BUMP TROUBLESHOOTING CHECK LIST. ALL WORK ACCOMPLISHED IAW CESSNA MM CHPT 32-30-00.

Part: SENSOR — MALFUNCTIONED (PYLON) · airframe 5,683 hrs · 3,586 cycles

ON DESCENT, PYLON BLEED LEAK, ILLUMINATED EMERGENCY PROCEDURES COMPLETED, WARNING LIGHT EXTINGUISHED WHEN IDLE, BUT CAME BACK ON WHEN POWER WAS ADDED. REMOVED PANEL 412DB TO GAIN ACCESS TO SENSOR TT018 AND TT020 VISUALLY INSPECTED BOTH SENSORS, NO DEFECTS NOTED. INSPECTED ALL PNEUMATIC LINES IN PYLON AREA NO DEFECTS NOTED. OPENED PANEL 411FB TO INSPECT FORWARD END OF PNEUMATIC DUCT, NO DEFECTS NOTED. RAN ENGINE AT IDLE, NO LEAKS NOTED AT ANY PNEUMATIC DUCTS. SUSPECT SENSOR NOT OPERATING PROPERLY, REMOVED SENSOR TT020 P/N S100420PG S/N 3987A AND INSTALLED NEW SENSOR P/N S101816PG S/N 1380 PER CE750 MM 30-16-00 OP'S CHECK GOOD.

Part: ACM — SEIZED · airframe 5,640 hrs · 3,558 cycles

DURING TAXI IN AFTER OPERATIONAL CHECK FLIGHT, SMOKE AND ODOR NOTICED COMING THROUGH COCKPIT GASPERS. BY THE TIME AIRCRAFT WAS PARKED AND SHUTDOWN, SMOKE AND ODOR FILLED THE COCKPIT AND CABIN. ARFF CALLED TO THE SCENE. NO NOTICEABLE FIRE OR FLAMES. TROUBLESHOT, FOUND CABIN ACM SEIZED. REPLACED CABIN ACM (AIR CYCLE MACHINE) WITH OVERHAULED UNIT IN ACCORDANCE WITH CESSNA 750 MAINTENANCE MANUAL CHAPTER 21-51-00. OPERATIONAL CHECK GOOD.

Part: COMPUTER — MALFUNCTIONED (AUTOPILOT) · airframe 5,621 hrs · 3,547 cycles

NR 1 IAC FAILED IN FLIGHT, DU 1, 2, 3, RED X THROUGH SCREENS, NR 1 FMS INOP, NR 1 RMU STILL WORKS, NO HEADING BUG OR ALTITUDE SETTING CAPABILITY EITHER. REMOVED AND REPLACED HONEYWELL PRIMUS 2000 IC800 WITH A REPAIRED UNIT FROM HONEYWELL NR LV2R992K S/N ON : 96070577 IAW CESSNA 750 M/M 34-25-01. FUNCTION CHECKED SYSTEM IAW CESSNA 750 M/M 23-80-01. CHECKS GOOD.

Part: WARNING SYSTEM — ACTIVATED (FADEC) · airframe 3,259 hrs · 2,026 cycles

ON TAKEOFF ROLL AT 50 KNOTS, MASTER CAUTION WITH EICAS MESSAGES FADEC FAULT L A-B AND FADEC FAULT R A-B. TAKEOFF WAS ABORTED. MESSAGES EXTINGUISHED AS ACFT CLEARED THE RUNWAY.

Part: SENSOR — FAILED (ANTI ICE TEMP) · airframe 5,254 hrs · 3,334 cycles

ABORTED T/O DUE TO WING A/I HOT L CAS MESSAGE. RAN ENG, TURNED ON SLAT ALI FELT LT & RT WING L/E'S DID GET WARN. I/B LT WING L/E REMOVED TO INSPECT WING L/E A/I DUCT O-RING. ACCESSED IMT I/B, MID & O/B WING, TEMP NORMAL. COULD NOT DUPLICATE CN SUBSEQUENT ENGINE RUN. REMOVED LT I/B L/E WING, INSPECTED BLEED AIR TUBING, FOUND O-RINGS WORN. REMOVED LT WING L/E ALI TEMP SENSOR P/N S100420PG, S/N 3970A. INSTALLED A NEW SENSOR P/N-S101816PG, S/N -1004. REMOVED & REPLACED (3) O-RINGS P/N 2-214S469-40 FROM HEATED L/E LT DUCT WORK. RE-INSTALLED LT I/B HEATED L/E & WING ROOT FAIRING. RAN ENG. TUNRED ON SLAT ALI WING I/B, MID & O/B, TEMPS NORMAL. NO BLEED AIR LEAKS, OPS GOOD. RESEALED LT I/B HEATED L/E.

Part: PITCH CONTROL — ILLUMINATED (COCKPIT) · airframe 5,221 hrs · 3,130 cycles

SHORTLY AFTER DEPARTURE IAD PITCH FEEL FAIL AMBER CAS MESSAGE ILLUMINATED, WENT OUT AFTER A SHORT TIME BUT CAME BACK ON THROUGHOUT FLIGHT CONTROLS WERE VERY HEAVY IN PITCH AND ROLL. - (M2B) GAINED ACCESS TO PITCH FEEL LINEAR ACTUATORS. CHECKED CANNON PLUGS, NO DAMAGE FOUND. CHECKED LOGIC CARD MODULE FOR PITCH FEEL NO DAMAGE FOUND. C/W SATISFACTORY OPERATIONAL CHECK OF PITCH FEEL SYSTEM. UNABLE TO DUPLICATE DISCREPANCY. ALL WORK IAW CE 750 MM 27-30-00.

Part: DISPLAY — FAILED (COCKPIT) · airframe 4,920 hrs · 3,126 cycles

NR 1 MFD ON PILOTS BURNED OUT IS COMPLETLY DARK WITH NO RED X COULD SMELL ELECTRICAL FUMES. REMOVED PILOTS NR 1 MFD AND INSTALLED SERVICEABLE UNIT.

Part: CABLE — FAILED (MLG)

LT MAIN GEAR GREEN LIGHT WOULD NOT COME ON FOR LANDING AT EC335, LANDING GEAR WAS RECYCLED AND GOT THREE GREEN LIGHTS. AFTER TAKE OFF LANDING GEAR WAS RECYCLED TO SEE IF WE WOULD HAVE ANY MORE PROBLEMS, LT MAIN GEAR LIGHT WOULD NOT COME ON, GEAR WAS RECYCLED SEVERAL TIMES, EMERGENCY CHECKLIST WAS COMPLIED WITH, AC WAS DIVERTED FOR MAINTENANCE. MAINTENANCE CHECKED ON JACKS AND FOUND LT MLG DOWN LIMIT CABLE SEGMENT AT FAULT. REMOVED AND REPLACED CABLE SEGMENT. FUNCTIONED CHECK WITH AIRCRAFT ON JACKS MANY TIMES, CHECKED GOOD.

Part: LANDING GEAR — VIBRATION (NOSE) · airframe 3,857 hrs · 2,447 cycles

REJECTED TAKEOFF DUE TO SEVERE NOSE WHEEL SHIMMY.

Part: WARNING LIGHT — ILLUMINATED (INERTAIL GUIDANA) · airframe 3,857 hrs · 2,447 cycles

ON TAKEOFF MASTER CAUTION LIGHT CAME ON FOR FGC B-CHANNEL FAIL, ABORTED TAKEOFF.

Part: BUSHING — FROZEN (PUSH/PULL TUBE)

ELEVATOR FEELS ABNORMALLY STIFF. AILERON CONTROL FEELS NORMAL. CONTROL CHECKS NORMAL. ELEVATOR FEELS SIMILAR TO MANUAL REVISION MADE IN SIMULATOR. TROUBLESHOOT ELEVATOR SYSTEM. FOUND COPILOT PUSH/PULL TUBE AFT/BELOW COCKPIT PEDESTAL, BUSHINGS FROZE, REPLACED BUSHINGS.