N941QS

Part: FLT CONTROLS — FAULTED · airframe 2,008 hrs · 1,352 cycles

CLEARED FOR VISUAL APPROACH, DISCONNECTED AUTOPILOT ON LEFT BASE LEG (YD AND AT STILL ENGAGED). AT APRX 1800FT INITIATED A LT TURN & NOSE DOWN PITCH WITH YOKE. ACFT UNRESPONSIVE & WOULDN'T ROLL OR PITCH. ACFT FELT SLUGGISH. CHECKED SPEED, ASKED FO IF CONFIGURED CORRECTLY OR IF SOMETHING WRONG. CHECKED SPEED, FLAPS, GEAR, SPOILERS FOR CONFIG & ALL GOOD. OVERSHOT FINAL APPROACH BUT PLANE ROLLED & ON FINAL APPROACH SPEED THEN WENT TO AMBER AT 101-103 & ABOVE REF. DISCONNECTED AUTOTHROTTLES & YD, EVERYTHING NORMAL. AFTER CHECKING ARES DATA, FOUND ACFT DATA INFO TO ALL BE WITHIN NORMAL OPS. NO DEFECTS OR ABNORMALITIES NOTED.

Part: POWER SUPPLY — INOPERATIVE (ZONE 200) · airframe 1,606 hrs · 1,098 cycles

EMERGENCY LIGHTS AISLE SEAT 5 OVERHEAD SEAT SEVEN DID NOT ILLUMINATE. CHARGED 30 MINS STILL DID NOT COME ON. RESET 5 G SWITCH CHARGED ANOTHER THIRTY MINS DID NOT COME ON. CORRECTIVE ACTION: REMOVED FAULTY EMERGENCY LIGHT POWER SUPPLY (UC003) P/N: CBS28-1 S/N: 009391 AND INSTALLED CUSTOMER SUPPLIED NEW EMERGENCY LIGHT POWER SUPPLY (UC003) P/N: 6430028-1 S/N: D25-12109. PERFORMED EMERGENCY LIGHTING - ADJUSTMENT/TEST WITH NO DEFECTS NOTED, REF 680A MM 33-50-00.

Part: FILTER — DIRTY (ZONE 200) · airframe 1,284 hrs · 902 cycles

CABIN ODOR: RIGHT AFTER TAKEOFF FROM KBVU WE HAD A STRONG UNUSUAL ODOR IN THE COCKPIT AND CABIN. IT SMELLED MORE LIKE AN ACM ODOR THAN AN ELECTRICAL ODOR. I WALKED TO THE BACK OF THE PLANE TO LOOK FOR SMOKE/ODORS. THE ODOR REMAINED BUT I COULD NOT FIND ANY VISIBLE ISSUES. WE DIVERTED BACK TO LAS AFTER SPEAKING WITH THE FODM. CORRECTIVE ACTION: REPLACED HEPA FILTER. OPS CHECK GOOD. IAW CE680A AMM 21-70-10.

Part: LIGHT — INOPERATIVE (ZONE 200) · airframe 1,123 hrs · 802 cycles

RIGHT OVER-WING EMERGENCY LIGHT IS NOT ILLUMINATED. REMOVED AND REPLACED EMERGENCY OVER-WING LED LIGHT ASSEMBLY IAW CESSNA CITATION 680A MM CHAPTER 33-50-20. OPERATIONAL CHECK GOOD.

Part: HANDLE — OUT OF ADJUST (ZONE 800) · airframe 1,119 hrs · 799 cycles

WHEN CLOSING DOOR IN KYNG DOOR HANDLE WAS MORE DIFFICULT TO LOCK THAN IN KMKC. TESTED DOOR LOCK AGAIN IN KCMH AND IT IS ALMOST IMPOSSIBLE TO MOVE SILVER LOCK HANDLE NOW. FOUND DOOR PINS TO BE RETRACTING TOO MUCH AND JAMMING WHEN YOU MOVE THE HANDLE TO THE CLOSED POSITION. ADJUSTED INNER HANDLE OPEN STOP IAW CE680A MM 52-10-24. DURING OPS CHECK OF MCD FOUND DOOR TO BE SHIFTED AFT AND THE FWD HINGE BUSHING IS MIGRATED AFT.

Part: HANDLE — BINDING (ZONE 800) · airframe 1,119 hrs · 799 cycles

WHEN LOCKING MAIN CABIN DOOR SILVER HANDLE IS DIFFICULT TO SLIDE INTO LOCKED POSITION. REMOVED THE CABIN DOOR STEPS AND EXAMINED LINKAGE AND LOCKING MECHANISM WITH NO DEFECTS NOTED. OPERATED DOOR AND FOUND IT WAS SLOW TO CLOSE THE LAST FEW INCHES AND SOMETIMES WAS JERKY BEFORE HITTING THE DOOR STOPS. WHEN THIS HAPPENS THE CABIN DOOR HANDLE WAS HARD TO CLOSE DUE TO THE PINS NOT BEING FULLY LINED UP WITH THE SOCKETS. EXAMINED THE COUNTERBALANCE ASSEMBLY AND CHECKED THE RIGGING. ADJUSTED THE COUNTERBALANCE ASSEMBLY TO BE LOOSE WITH THE CABIN DOOR CLOSED. OPERATED DOOR AND FOUND IT TO BE MUCH SMOOTHER DURING THE LAST FEW INCHES OF TRAVEL AND FOUND IT DOES FULLY CLOSE AND HIT THE DOOR STOPS. WITH CABIN DOOR FULLY UP THE LOCK MECHANISM CAN BE MOVED WITH 2 FINGERS ON THE INSIDE AND 3 FINGERS ON THE OUTSIDE. CABIN DOOR LOCKING NOW FEELS NORMAL. CLOSED THE CABIN DOOR AND INTERIOR AS NEEDED. WORK PERFORMED I/A/W 680A MM 52-10-00 2024-12-09

Part: APU — LEAKING (APU BAY) · airframe 14,174 hrs · 8,740 cycles

STRONG OIL SMELL FROM OVERHEAD WEMACS, SEEMED STRONGER IN COCKPIT. NOTICED PRIOR TO DESCENT FROM ALTITUDE. EVIDENCE OF OIL IN CABIN APU COMPRESSOR. REPLACED APU ASSEMBLY IAW MM CH 45-10-00. OPERATIONAL & LEAK CHECKED GOOD. INSTALLED 11, 647 HAS, 11, 595 CSN UPDATED APU ECU.

Part: UNKNOWN — ODOR (COCKPIT) · airframe 14,174 hrs · 8,740 cycles

STRONG OIL SMELL FROM OVERHEAD WEMACS. SEEMED STRONGER IN COCKPIT. NOTICED PRIOR TO DESCENT FROM ALTITUDE.

Part: BRAKE — UNSERVICEABLE (LT MLG) · airframe 13,524 hrs · 8,351 cycles

UPON SHUTDOWN AFTER A NORMAL LANDING, THE LINE GUY TOLD US THAT HE COULD SMELL OUR BRAKES. UPON FURTHER INSPECTION, FOUND SMOKE COMING OUT OF THE INSIDE OF THE LT MAIN INBD WHEEL. SMOKE WAS VERIFIED COMING OUT BEHIND THE HEAT SHIELD BETWEEN THE MAINS. BRAKE INSTALLED IAW AMM 32-42-01.

Part: ACM — FAILED · airframe 13,109 hrs · 8,097 cycles

DURING TAXI, CABIN BEGAN TO FILL UP WITH SMOKE. TURNED OFF PACS & APU, SMOKE SEEMED TO SUBSIDE. RESIDUAL SMOKE NOTICED IN TAIL CONE UPON INSPECTION. REMOVED THE FWD ACM. INSTALLED A NEW ACM IAW AMM 21-51-00. OPS & LEAK CHECKED GOOD.

Part: UNKNOWN — ODOR (CABIN/COCKPIT)

DIRTY OILY ODOR FROM CABIN & COCKPIT PACKS. R & R APU POWER PLANT IAW MM 49-10-00. R & R COALESCER SOCKS. OPS & LEAK CHECKED GOOD. WORK DONE IAW MM 49-10-00.

Part: SEAT — ODOR (LAVATORY) · airframe 12,645 hrs · 7,824 cycles

VERY STRONG MOLD & MILDEW ODOR IN CABIN. FOUND MOLD & MICROBIAL GROWTH UNDER LAVATORY SEAT CUSHION & UNDER TOILET ASSEMBLY COVER. CLEANED AREA UNDER SEAT CUSHIONS & UNDER TOILET TOP. NO MORE MOLDY SMELLS NOTED AT THIS TIME. FOUND WATER SEPARATOR DRAIN LINES CLOGGED FOR LT & RT PACS. CLEARED BLOCKAGE FROM LT & RT WATER SEPARATOR DRAIN LINES. PERFORMED TC-750-21-120801M ECS DUCT BURN OUT WITH EXISTING COALESCERS THAT ARE IN A LIKE NEW CONDITION. NO UNUSUAL ODORS NOTED WITH BOTH PACS RUNNING FULL HOT & FULL COLD. IAW MM 12-10-01 & MONOGRAM SANITATION CMM 38-31-07.

Part: ACM — FAILED (FWD) · airframe 12,362 hrs · 7,647 cycles

STRONG INTERMITTENT OILY ODOR PRESENT WITH A/C PACKS ON HIGH FLOW. POST FLIGHT INSPECTION FOUND FWD A/C PACK OIL RESERVOIR BLACK IN COLOR. REMOVED FORWARD AIR CYCLE MACHINE AND REPLACED WITH A NEW IAW MM 21-51-00. OPS AND LEAK CHECKED GOOD.

Part: ACM — ODOR (COCKPIT) · airframe 12,234 hrs · 7,571 cycles

AFTER LANDING, COCKPIT & CABIN FILLED WITH SMOKE & A STRONG ODOR. R & R COCKPIT ACM WITH NEW AIR BEARING ACM IAW SL750-21-02, MM 21-02 & 21-51-00. COMPLIED WITH OPS CHECK, CHECKED GOOD & NO LEAKS NOTED.

Part: COMPRESSOR — FAILED (A/C PACK) · airframe 11,361 hrs · 7,025 cycles

AFTER ENGINE SHUTDOWN WITH THE APU RUNNING AND BOTH COCKPIT AND CABIN PACKS ON, THE ACFT STARTED HAVING SMOKE IN THE CABIN COMING OUT OF THE OVERHEAD WEMACS. THE CABIN PACK WAS TURNED OFF AND THE SMOKE SUBSIDED. INSPECTED PAC FOR CABIN (FWD) NO SIGNS OF EXTERNAL OIL LEAKAGE, OIL LEVEL ON FULL MARK. RAN APU AND OPERATED CABIN PACK. NOTED CABIN PACK WOULD NOT OPERATE. SHUT APU DOWN. INSPECTED IMPELLER FOR FREE MOVEMENT. FOUND IMPELER SEIZED. REMOVED FWD CABIN ARM. REMOVED PLENUM FORM PRECOOLER. REMOVED CLEANED AND REINSTALLED BOTH COALESCERS. INSTALLED REPAIRED CABIN ACM IAW MM CH 21-51-00 COMPLIED WITH ACM PRE LUBRICATION PROCEDURE IAW MM CH 12-10-01. BEGAN INSTALLING CAIBN ACM DUCTS. COMPLETED ACM INSTALL. LEAK + OPS CHECK GOOD WORK DONE IAW MM CHAPT 21-51-00 R42.

Part: COALESCER BAG — ODOR (ACM) · airframe 8,729 hrs · 5,384 cycles

WHEN PAC CONTROLLER SUPPLY TEMPS ARE INCREASED, STRONG FUEL ODOR BECOMES PRESENT IN COCKPIT. REMOVED COCKPIT AND CABIN COALESCER BAGS AND INSTALLED NEW COALESCER BAGS. OPS CHECK AND LEAK CHECK GOOD NO FUEL ODOR NOTED IN COCKPIT OR CABIN DURING OPS CHECK. WORK DONE IAW CH 12-10-01-160 OF THE MM.

Part: UNKNOWN — ODOR (CABIN) · airframe 8,558 hrs · 5,267 cycles

HOT ELECTRICAL INSULATION ODOR COMING FROM SEAT 5 WINDOW (3RD WINDOW AFT MAIN CABIN DOOR), BECOMING STRONGER AFTER A FEW MINUTES PROMPTING ACFT SHUTDOWN. OPERATIONAL CHECK OF LIGHTS, SHADES, OUTLETS AND ELECTRICAL EQUIPMENT GOOD. NO NOTICEABLE BURNING ODOR. RAN AIRCRAFT APU AND ENVIRONMENTAL SYSTEMS. NO FAULTS HOT OR COLD. AIRCRAFT GOOD FOR CONTINUED SERVICE. OPERATIONAL CHECKS IAW IMM, CABIN MANAGEMENT MANUAL, MM 33-20-00 AND 49-10-00 AND 21-11-00.

Part: HOSE — LEAKING (MLG RETRACT) · airframe 7,742 hrs · 4,733 cycles

DURING GEAR RETRACTION LOST HYD A SYS AND ALL HYD FLUID ON THE ' A' SIDE. HYD FLUID VISIBLE IN BOTH MAIN GEAR WELLS. HYD VOLUME LOW A B AND HYD PUMP FAIL A CHECKLIST WAS DONE WITH GEAR BLOW DOWN. REMOVED AND REPLACED RT MLG RETRACT HOSE. RESET LANDING GEAR CONTROL VALVE. SERVICED LANDING GEAR N2 BOTTLE. SERVICED AND BLED HYD "A" SYS. PERFORMED OPS AND LEAKING CHECK SATISFACORY. WORK DONE IAW MM 12-10-15 AND CHAPTER 20-10-35 REV 37, HOSE, AE1011888G0106, COVER, CLOSEOUT MFG 6710135-62, CLOSEOUT ASSY MFG 6719089-3.

Part: HYDRAULIC SYSTEM — LOW

DURING GEAR RETRACTION LOST HYD -A- SYSTEM AND ALL HYD FLUID ON THE -A- SIDE. HYD FLUID VISIBLE IN BOTH MAIN GEAR WELLS. HYD VOLUME LOW -A-, -B- AND HYD PUMP FAIL A CHECKLIST WERE DONE WITH GEAR BLOW DOWN. (A)

Part: CONNECTOR — LOOSE (MLG) · airframe 7,607 hrs · 4,653 cycles

GEAR BUMP HEARD AND FELT 3 TIMES DURING CLIMB. FOUND RT MLG DOOR LOOSE & RT UPLOCK SWITCH CONNECTOR LOOSE. TIGHTENED RT UPLOCK SWITCH CONNECTOR & ADJUSTED RT MLG DOOR. OPERATIONAL CHECKS GOOD ON GEAR SWING, ALSO, ACCOMPLISHED GEAR BUMP TROUBLESHOOTING IAW MM CHAPTERS 32-30-00 &32-30-05.

Part: ACCUMULATOR — LEAKING (E/E BAY) · airframe 7,267 hrs · 4,463 cycles

RUD STBY SYS FAIL (AMBER) ILLUMINATED 2 TIMES DURING FLIGHT. FOUND RUDDER STBY ACCUMULATOR GAGE TO BE LEAKING INTERNALLY. REMOVED AND REPLACED GAGE WITH NEW IAW CE-750 M/M CHAP 29-10-04. SERVICED ACCUMULATOR TO 2000 PSI OAW CE-750 M/M CHAP 12-10-16. NO LEAKS DETECTED. OPS CHECK GOOD.

Part: ELASTOMER — WORN (NLG) · airframe 7,079 hrs · 4,360 cycles

EXTREME NOSE WHEEL SHIMMY DURING T/O ROLL. ABORTED TAKEOFF. REPLACED LNLG WHEEL/TIRE ASSY P/N 3-1538-1, S/N 1384, TIRES P/N M15601, S/N 6275A063 W/ WHEEL/ TIRE S/N 0350, TIRE S/N 6270A197. REPLACED RNLG WHEEL/TIRE ASSY AN3-1538-1, S/N 1381, TIRE P/N M15601, S/N 6276A111 W/ WHEEL/TIRE S/N 0665, TIRE S/N 6271A103. REPLACED ELASTEMERS P/N 674021-5, SPACERS 6242217-5, SUPPORT CUPS 6742217 - 6, PIN 674 2217-9 & WASHERS 6242217-3. IAW 12-10-30, 32-47-01, AFM 75FM-10-2-7, & 32-30-03.

Part: FADEC — MALFUNCTIONED (LT ENGINE) · airframe 6,281 hrs · 3,873 cycles

LT ENGINE START WAS NORMAL, BUT AT IDLE, AMBER CAS MSG (FADEC FAULT L A-B) ILLUMINATED, AND THE ENGINE SHUTDOWN. FADEC RESET HAD NOT AFFECT ON FADEC OPERATION. DOWNLOADED FAULTS NO FAULTS DETECTED. RAN AIRCRAFT OPS CHECK GOOD. WORK DONE IAW CESSNA 750 MM CH 71-00-04.

Part: BUNGEE — WORN (AILERON) · airframe 5,893 hrs · 3,667 cycles

THE AILERON TRIM IS CALIBRATED WITH THE NO TAKEOFF MESSAGE HOWEVER IN LEVEL FLIGHT, FUEL BALANCED RECEIVED AN AMBER L WING DOWN TRIM. WHICH YOU TRIM TO EXTINGUISH MESSAGE. THE ROLL TRIM INDICATOR IS BEYOND HALF TRAVEL. REPLACED AILERON FEEL BUNGEE WITH NEW BUNGEE IAW THE 750 MM CHAPTER 27-11-05. ADJUSTED AILERON ON AUTOPILOT SERVO CABLE FUSELAGE CABLE ATTACH POINT FOR INSPECTED CLEARANCE AT FS 230.0 + FS 250.0 FAIRLEADS. ADJUSTED LEFT AND RIGHT AILERON DRAIN TO 1.5 DEGREES. PERFORMED OPS CHECK ON SYSTEM A AND D HYDRAULICS, OPS CHECK NORMAL AND NO FORCE FIGHT NOTED IAW CHAPT 27-11-01 AND 27-10-05.

Part: BRAKE — MALFUNCTIONED · airframe 5,699 hrs · 3,539 cycles

LT BRAKE GRABS UNPREDICTABLY WITH NORMAL APPLICATION PRESSURES. ITEM IS UNDER INVESTIGATION.

Part: BRAKE — MALFUNCTIONED (RT MLG) · airframe 5,381 hrs · 3,344 cycles

BRAKES GRAB EXCESSIVELY, ESPECIALLY THE RT BRAKE. ON THE RT BRAKE WHEN SLOWING TO A STOP YOU HAVE TO PUSH HARD TO OVERCOME A STICKY SPOT, THEN IT GRABS. TAXIED AIRCRAFT AND CYCLED BRAKES SEVERAL TIMES. USING NORMAL TAXI SPEEDS. APPLIED BRAKES VARYING FROM LIGHT TO HEAVY BRAKE APPLICATION BRINGING AIRCRAFT TO A STOP EACH TIME. BRAKE PEDAL FEEL WAS NORMAL WITH NO BINDING, STICKING OR GRABBING. COULD NOT DUPLICATE. OPS CHECK GOOD IAW MM CH 9-20-00

Part: TUBE — OUT OF ADJUST (FUEL SYSTEM) · airframe 5,144 hrs · 3,206 cycles

IN CRUISE FLIGHT, LEFT WING FUEL 3100 LBS., CENTER O LBS., RIGHT WING FUEL 3100 LBS., RECEIVED LEFT WING TANK O'FILL CAS MESSAGE. VISUAL CHECK SHOWED FUEL VENTING FROM LEFT WING. TURNED OFF LEFT CENTER WING TRANSFER AND YAWED AIRCRAFT. FUEL VENTING DID NOT STOP UNTIL 500 LBS IMBALANCE. FOUND GAP BETWEEN I/B LT CLIMB VENT TUBE TO BE OUT OF LIMITS AT UPPER END TO WING SKIN. ADJUSTED FROM THE OUT OF LIMITS .90", BACK TO THE REQUIRED .41" MAXIMUM. TOPPED-OFF WINGS AND CHECKED FOR STATIC LEAKS. LEAK CHECK OK. A/C DEFUELED BACK THE FUEL LEVEL AS HWEN AIRCRAFT CAME TO TOLEDO. DONE IAW CHAP 28-10-04 & 6-20-02 OF THE CESSNA 750 MAINT MANUAL. LEAK CHECKS OK.

Part: LANDING GEAR — NOISY · airframe 4,708 hrs · 2,943 cycles

BANG CAN BE FELT AND HEARD FROM NOSE AREA DURING FLIGHT ABOUT EVERY 10 MINS IN CLIMB & DESCENT EVERY 15-20 IN CRUISE. REQUIRING TEST FLIGHT OCF FOR FURTHER EVALUATION. PERFORMED GEAR SWING MULTIPLE TIMES AND COULD NOT DUPLICATE PROBELM. CONFIRMED THE GEAR BUMP CHECKLIST HAD BEEN PERFORMED WHEN AT CESSNA WITH SAMES DISCREPANCY PRIOR TO CMH ARRIVAL. INSPECTED ALL GEAR ROLLERS FOR FREEDOM OF MOVEMENT AND HOOK / ROLLER INTERFACE.

Part: COMPUTER — INOPERATIVE · airframe 4,496 hrs · 2,808 cycles

TAKEOFF ABORTED FOR AMBER MESSAGE WITH CAUTION LIGHT, MACH TRIM INOP, YAW INOP, ALSO HAD CYAN FGC A INOP. PERFORMED OPS CHECKS ON BOTH FGC'S IAW PRIMUS 2000 INTEGRATED AVIONICS SYSTEMS TEST AND FAULT MANUAL, OPS CHECKS SERVICEABLE.

Part: WARNING LIGHT — MALFUNCTIONED (NLG) · airframe 3,876 hrs · 2,451 cycles

LANDING GEAR RED UNLOCK LIGHT STAYED ILLUMINATED AFTER GEAR RETRACTION. AUDIBLE CYCLING NOTED. WIND NOISE LOUDER THEN NORMAL UPON RETRACTION. NOSE GEAR LIGHT SEEMED TO TAKE LONGER THAN NORMAL ON EXTENSION. ITEM IS UNDER INVESTIGATION.