# Service difficulty reports: N669QS

A list on [N669QS](https://openairdocs.org/aircraft/N669QS.md).

Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first.

- [SDR DXTA2026050607912](https://openairdocs.org/sdr/DXTA2026050607912.md): Door Seal · damaged · May 3, 2026 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > AT FL390 A LOUD HISSING/ WHISTLE SOUND WAS HEARD FROM MAIN CABIN DOOR. IT COULD BE HEARD BY BOTH CREW & PAX. UPON INVESTIGATING NOISE, SOME AIR WAS FELT COMING IN FROM RT FWD CORNER OF DOOR. NO DOOR ANNUNCIATORS OR PRESSURIZATION ISSUES. NOISE APPEARED TO DECR
- [SDR DXTA2025121506088](https://openairdocs.org/sdr/DXTA2025121506088.md): Cartridge · defective · Dec 11, 2025 · N669QS · Cessna 560XL · Aircraft Fuel Distribution System
  > WHEN CROSS FEEDING FROM RIGHT TANK TO LEFT ENGINE THE LOW FUEL PRESSURE LIGHT FLASHED ON AND THE LEFT BOOST PUMP CAME ON AND STAYED ON. UNABLE TO CROSS FEED FROM RIGHT TO LEFT. LEFT TO RIGHT CROSSFEED WORKS NORMALLY. CORRECTIVE ACTION: OPERATED BOTH ENGINES A
- [SDR DXTA2025120105892](https://openairdocs.org/sdr/DXTA2025120105892.md): Door · no discrepancy · Nov 28, 2025 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN ENTRY DOOR WILL NOT OPEN, PANEL BELOW DOOR APPEARS TO BE DAMAGED. TECHS FOUND THE DOOR IN THE UNLOCK POSITION WITH THE PRECATCH HOLDING THE DOOR CLOSED. TECHS LOCKED THE DOOR AND THE LOWER PANEL CLOSED FLUSH TO THE AIRFRAME. TECHS INSPECTED ALL DOOR HING
- [SDR DXTA2024081500196](https://openairdocs.org/sdr/DXTA2024081500196.md): Support · damaged · Aug 12, 2024 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR IS DIFFICULT TO CLOSE. WHEN LOCKING THE DOOR CLOSED, RESISTANCE IS FELT IN THE HANDLE. TO LOCK THE DOOR IT TAKES MORE FORCE THAN NORMAL. THIS HAPPENS FROM BOTH OUTSIDE AND INSIDE. ALSO, A LOUD BINDING SOUND CAN BE HEARD FROM THE SIDE PINS A
- [SDR DXTA2024062012107](https://openairdocs.org/sdr/DXTA2024062012107.md): Seal · leaking · Jun 20, 2024 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > CLIMBING THROUGH FL270 A LOUD SQUEAL WAS NOTICED COMING FROM THE MAIN CABIN DOOR. AT FL 280 CABIN ALTITUDE WAS 2000FT AND 8.4 DIFFERENTIAL. DESCENDING THROUGH 11000 FT CABIN DIFFERENTIAL WAS 4.1. UNKNOWN WHICH SEAL WAS MAKNG THE LOUD NOISE. NO ABNORMAL
- [SDR 3J7R2024040200001](https://openairdocs.org/sdr/3J7R2024040200001.md): Light · inoperative · Apr 1, 2024 · N669QS · Cessna 560XL · Emergency Lighting
  > MIDDLE OVER WING EMERGENCY EXIT LIGHT INOP
- [SDR DXTA2023111710076](https://openairdocs.org/sdr/DXTA2023111710076.md): Display · defective · Nov 17, 2023 · N669QS · Cessna 560XL · Central Display
  > DURING APPROACH THE MFD WENT BLANK AND IMMEDIATELY HAD AN ELECTRICAL SMELL THROUGHOUT THE ENTIRE AIRCRAFT. AFTER 30 SECONDS IT CAME BACK ON AND WORKED NORMALLY FOR THE REST OF FLIGHT. REMOVED AND REPLACED THE MFD DISPLAY UNIT IAW CE-560XL AMM 34--26--00.OPE
- [SDR DXTA2023112010100](https://openairdocs.org/sdr/DXTA2023112010100.md): Oxygen Box · broken · Nov 11, 2023 · N669QS · Cessna 560XL · Passenger Oxygen System
  > CABIN OXYGEN MASK STORAGE COMPARTMENT: OXYGEN MASK AT SEAT 10 DID NOT OPEN AT ALL WHEN DEPLOYED. CABIN OXYGEN MASK STORAGE COMPARTMENT: OXYGEN MASKS COMPARTMENT IN BETWEEN SEATS 7 AND 8 DID NOT FULLY DROP AFTER DEPLOYING THEM. THE COMPARTMENT IN QUESTION AS
- [SDR DXTA2023091295270](https://openairdocs.org/sdr/DXTA2023091295270.md): Light · inoperative · Sep 11, 2023 · N669QS · Cessna 560XL · Emergency Lighting
  > FLOOR EMERG EXIT LIGHT: LEFT SIDE FLOOR EMERGENCY LIGHTING INOP. REMOVED AND REPLACED FWD LEFT HAND AISLE LIGHT ASSEMBLY. OPS CHECK GOOD. WORK DONE IAW MM 33-20-00.
- [SDR DXTA2023090594670](https://openairdocs.org/sdr/DXTA2023090594670.md): Switch · stuck · Sep 5, 2023 · N669QS · Cessna 560XL · Door Warning System
  > CABIN DOOR ANNUNCIATOR ILLUMINATED IN FLIGHT. PRIOR TO ENGINE START, ALL 9 FLAGS WERE VISIBLE, ALL 6 PACK LIGHTS EXTINGUISHED, & CABIN DOOR ANNUNCIATOR EXTINGUISHED. AFTER TAKEOFF, CABIN DOOR ANNUNCIATOR ILLUMINATED CLIMBING THRU APPROX 2,000 FT. AFT LOWER 6 P
- [SDR DXTA2023070590290](https://openairdocs.org/sdr/DXTA2023070590290.md): Switch · defective · Jul 3, 2023 · N669QS · Cessna 560XL · Emergency Lighting
  > EMERGENCY LIGHTING: AMBER LIGHT FOR THE EMERGENCY LIGHT SWITCH IS INOP. VERIFIED LAMP IS INOP, REMOVED EL PANAL REFERENCE CE·S60XLAMM 33-10-01 REMOVED THE EMERGENCY LIGHTING LAMP P/N; 6838 AND FOUND ONE OF THE LEGS GONE, TRIED TO INST AU. A NEW 6838 LAMP AND T
- [SDR EBVR20220526](https://openairdocs.org/sdr/EBVR20220526.md): None · none · May 26, 2022 · N669QS · Cessna 560XL · Fuselage Main, Structure
  > EMERGENCY EXIT SURROUND DOUBLER HAS 1 EACH CHAFE LOCATION AT FS335.625.
- [SDR DXTA2021122053890](https://openairdocs.org/sdr/DXTA2021122053890.md): None · none · Dec 20, 2021 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR: MAIN DOOR LOCK, UNABLE TO OPEN WITH EITHER CREWS KEYS IT FEELS MECHANICAL POSSIBLY THE TEETH ON THE LOCK ARE BROKEN UNABLE TO OPEN MAIN CABIN DOOR // SIGNOFF// MED LOCK WAS FROZEN, USED HEAT TO FREE IT UP AND MEDCO LOCK LUBE TO CLEAN IT UP AND DISPL
- [SDR DXTA2021071344930](https://openairdocs.org/sdr/DXTA2021071344930.md): Latch · out of adjust · Jul 13, 2021 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > CABIN DOOR PRE-CATCH NOT RELEASING THE CABIN DOOR. PERFORMED PRE CATCH ADJUSTMENT PER TC-5XL-52-141001 AND PERFORMED PRECATCH LATCH PLATE ADJUSTMENT ALL CHECKS GOOD WORK DONE IN REF TO TC-5XL-52-141001 CE-560XL AMM 52-10-00
- [SDR DXTA2021061443530](https://openairdocs.org/sdr/DXTA2021061443530.md): Pin · lack of lube · Jun 11, 2021 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR HANDLE: MAIN DOOR HANDLE IS VERY STIFF. IT IS HARD TO OPEN AND CLOSE THE MAIN CABIN DOOR ON THE GROUND. "CORRECTIVE ACTION"CLEANED AND LUBED ALL DOOR PINS AND CYCLED DOOR HANDLE OPS CHECKS GOOD.
- [SDR DXTA2020122304511](https://openairdocs.org/sdr/DXTA2020122304511.md): Latch · defective · Dec 23, 2020 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > WHEN OPENING THE MAIN CABIN DOOR FROM THE OUTSIDE, THE DOOR HANDLE OPERATES NORMALLY, BUT THE DOOR WILL NOT OPEN WITHOUT DEPRESSING THE PRECATCH ADJACENT TO THE DOOR. DOOR OPERATED NORMALLY EVERYTIME EXCEPT ONCE FROM THE INSIDE. TRIED PUSHING ON THE DOOR FRO
- [SDR DXTA2020122104507](https://openairdocs.org/sdr/DXTA2020122104507.md): Door · out of adjust · Dec 21, 2020 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR WILL NOT OPEN NORMALLY, MUST USE PRECATCH FROM OUTSIDE THE DOOR TO OPEN IT. REPEAT WRITE UP FROM 12/18/20, VERIFIED DISCREPANCY. INSPECTED MAIN CABIN DOOR PRECATCH AND FOUND TO BE STICKING ON THE PRECATCH. PRECATCH WAS FOUND TO BE OUT OF ADJ
- [SDR DXTA2020101304200](https://openairdocs.org/sdr/DXTA2020101304200.md): Latch · lack of lube · Oct 12, 2020 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > CABIN DOOR IS DIFFICULT TO OPEN/CLOSE FROM THE INSIDE AND OUTSIDE HANDLES. CORRECTIVE ACTION: REMOVED THE STAIRS AND CLEANED AND LUBRICATED THE LATCHING PINS. INSTALLED THE STAIRS AND OPERATIONS CHECKED THE DOOR. THE DOOR HANDLE OPERATED SMOOTHER THAN BEFO
- [SDR DXTA2020080323933](https://openairdocs.org/sdr/DXTA2020080323933.md): Door · malfunctioned · Aug 2, 2020 · N669QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR IS HANGING ON THE PRE CATCH. NOTICEABLE AFTER DOOR IS CLOSED THEN LOCKED. UPON TRYING TO OPEN IT WILL NOT OPEN UNTIL PRECATCH IS RELEASED. IF OUTSIDE, CANNOT OPEN THE DOOR AT ALL UNTI PRECATCH IS RELEASED. IF TRYING TO OPEN FROM THE INSIDE
- [SDR DXTA2017111700032](https://openairdocs.org/sdr/DXTA2017111700032.md): Indicator · malfunctioned · Nov 17, 2017 · N669QS · Cessna 560XL · Landing Gear Retraction/Extension System
  > LANDING GEAR WOULD NOT RETRACT, GEAR HANDLE UP, 3 GREEN, NO RED. NO CIRCUIT BREAKER TRIP. CYCLED LANDING GEAR 15 TIMES WITH NO FAILURE NOTED. ALL EXTENSION, RETRACTION, AND GEAR INDICATORS OPS CHECKED GOOD. REMOVED LANDING GEAR CONTROL HANDLE AND INSPECTE
- [SDR JGVR20170620002](https://openairdocs.org/sdr/JGVR20170620002.md): Skin · corroded · Jun 19, 2017 · N669QS · Cessna 560XL · Wing, Plate/Skin
  > DURING INSPECTION AND PAINT STRIP, LEVEL 2 CORROSION FOUND LT UPPER WING (ZONE 533, 534) RT UPPER WING (ZONE 642, 643, 624, 623, 613 AND 33). REPAIRED IAW REPAIR DEFINITION AND 8100-9.
- [SDR JGVR20170531001](https://openairdocs.org/sdr/JGVR20170531001.md): Strake · corroded · May 31, 2017 · N669QS · Cessna 560XL · Empennage Structure
  > LT AND RT STRAKES WERE CORRODED, BEYOND LIMITS OF SRM. REPLACED BOTH STRAKES.
- [SDR DXTA2016060506251](https://openairdocs.org/sdr/DXTA2016060506251.md): Unknown · fumes · Jun 6, 2016 · N669QS · Cessna 560XL · Air Distribution System
  > FUEL FUMES DETECTED IN FLIGHT. MOST PRONOUNCED FROM LT SUPPLY COCKPIT ARM REST HOLES BY WINDOW, OVERHEAD VENTS DON'T SEEM TO HAVE FUEL ODOR. UNABLE TO DETECT FUMES IN CABIN, ONLY COCKPIT. INSPECTED BOTH ENGINES AND THE APU FOR FUEL AND OIL LEAKS. CHECKED B
- [SDR DXTA2016011106160](https://openairdocs.org/sdr/DXTA2016011106160.md): Unknown · odor · Jan 11, 2016 · N669QS · Cessna 560XL · Air Distribution System
  > AT FL300 STRONG SMELL OF KEROSENE WITH EYEBALL VENTS OPEN IN COCKPIT. CREW HAD TO DON OXYGEN MASKS. TROUBLESHOT, RAN APU & BOTH ENGS WITH BLEEDS ON INDEPENDENTLY, COULD NOT DUPLICATE DISCREPANCY. R & R CONDENSER SOCK, INSPECTED, CLEANED & DRIED AT DUCTS. R
- [SDR DXTA2015072706051](https://openairdocs.org/sdr/DXTA2015072706051.md): Engine · failed · Jul 25, 2015 · N669QS · Cessna 560XL · Engine (Turbine/Turboprop)
  > AFTER DEPARTURE AT APPROX 2500' MSL RT LOW OIL PRESSURE WARNING ILLUMINATED, FOLLOWED IMMEDIATELY BY A ODOR OF SMOKE. RT OIL PRESSURE GAUGE INDICATION WAS ZERO. EMERGENCY RETURN WAS CONDUCTED WITH RT ENGINE AT IDLE POWER. REMOVED THE RT ENGINE DUE TO LOSS O
- [SDR DXTA2014122305953](https://openairdocs.org/sdr/DXTA2014122305953.md): Unknown · odor · Dec 23, 2014 · N669QS · Cessna 560XL · Air Distribution System
  > DURING TAXI OUT CABIN DOOR MONITOR CIRCUIT BREAKER TRIPPED. DID NOT ATTEMPT RESET. RETURNED TO RAMP. HEAVY ELEC FIRE SMOKE FILLED COCKPIT. R & R AN INOPERATIVE CABIN DOOR PCB, IAW AMM 24-51-02. OPS CHECKED GOOD IAW MM 52-70-00-710. R & R THE VENT DOOR S
- [SDR DXTA2011060704608](https://openairdocs.org/sdr/DXTA2011060704608.md): Actuator · leaking · Jun 7, 2011 · N669QS · Cessna 560XL · Rudder Control System
  > WITH HIGH POWER SETTING, BOTH PEDALS ARE VERY DIFFICULT TO MOVE FROM BOTH COPILOT AND PILOT SIDE. SUSPECT RUDDER BIAS IS PRESSURIZING BOTH SIDES SIMULTANEOUSLY. RUDDER BIAS CHECKED OK ON GROUND. REMOVED RUDDER BIAS ACTUATOR AND ACTUATOR MOUNT. INSTALLED ACTU
- [SDR DXTA2011050204571](https://openairdocs.org/sdr/DXTA2011050204571.md): Knob · misinstalled · Apr 29, 2011 · N669QS · Cessna 560XL · Trailing Edge Flap Control System
  > FLAP HANDLE WOULD NOT MOVE FROM FLAP 15 DEGREE POSITION. FOUND KNOB INSTALLED TOO FAR DOWN ON FLAP SELECTOR HANDLE, ADJUSTED FLAP KNOB AND TIGHTEN SET SCREW IAW MM 24-53-01. OPS CHECKED SATISFACTORY.
- [SDR DXTA2011020404450](https://openairdocs.org/sdr/DXTA2011020404450.md): Fillercap · loose · Feb 3, 2011 · N669QS · Cessna 560XL · Water and Waste System
  > THUMPING NOISE COMING FROM LAV IN FLIGHT. ON POST FLT FOUND FILLER CAP LOOSE. FOUND LAV FLUID SERVICING PORT CAP NOT LOCKING INTO SECURE POSITION. LUBED FILTER CAP BEARINGS AND RESECURED CAP IAW MM 38-30-02. OPS CHECKED GOOD.
- [SDR DXTA2010120604353](https://openairdocs.org/sdr/DXTA2010120604353.md): Actuator · inoperative · Dec 6, 2010 · N669QS · Cessna 560XL · Landing Gear Retraction/Extension System
  > AFTER TAKEOFF, GEAR UNLOCKED LIGHT REMAINED ON, ALL GEAR GREEN LIGHTS WERE EXTINGUISHED, AND HYD PRESS ANNUNCIATOR REMAINED ON, SELECTED GEAR HANDLE DOWN, ALL GREEN LIGHTS ILLUMINATED AND HYD PRESS ANNUNCIATOR EXTINGUISHED. R & R RT MLG ACTUATOR IAW MM 32-30-
- [SDR DXTA2010082004198](https://openairdocs.org/sdr/DXTA2010082004198.md): Knob · loose · Aug 19, 2010 · N669QS · Cessna 560XL · Trailing Edge Flap Control System
  > AFTER TAKEOFF, FLAP LEVER WOULD NOT MOVE OUT OF TAKEOFF FLAP POSITION. RETURNED FOR LANDING. FOUND KNOB LOOSE UPON ARRIVAL TO ACFT. RESECURED FLAP LEVER KNOB AS REQ'D IAW 20-00-00, OPS TEST GOOD.
- [SDR DXTA2009072703741](https://openairdocs.org/sdr/DXTA2009072703741.md): Actuator · malfunctioned · Jul 25, 2009 · N669QS · Cessna 560XL · Landing Gear Actuator
  > ON TAKEOFF, GEAR DID NOT RETRACT NORMALLY; HAD RED UNSAFE INDICATION. AFTER 6 MIN, WITH SPEED BELOW 200 KIAS, CREW HEARD A LOUD CLUNK AND RED UNSAFE INDICATOR EXTINGUISHED. GEAR EXTENSION WAS NORMAL. LANDING WAS UNEVENTFUL. POST FLIGHT VISUAL INSP SHOWED NO AP
- [SDR DXTA200803033](https://openairdocs.org/sdr/DXTA200803033.md): Actuator · inoperative · Apr 30, 2008 · N669QS · Cessna 560XL · Landing Gear Actuator
  > AFTER SELECTING GEAR UP, THE LT MAIN GEAR INDICATION LIGHT REMAINED ILLUMINATED. REPLACED LT MAIN LANDING GEAR ACTUATOR IAW MM 32-30-04. OPS CHECK GOOD. LEAK CHECK GOOD.
- [SDR DXTA200803004](https://openairdocs.org/sdr/DXTA200803004.md): Connector · contaminated · Apr 18, 2008 · N669QS · Cessna 560XL · Landing Gear System Wiring
  > AFTER SELECTING GEAR DOWN, LT MAIN GEAR DID NOT INDICATE DOWN. (2 GREEN 1 RED) FOUND LEFT GEAR DOWNLOCK SWITCH CONNECTOR CONTAMINATED. CLEANED REINSTALLED INDICATIONS NOW CK GD SWUNG GEAR IAW 32-01-00 SYSTEM CHECK GOOD RESET & SERVICED PNEUMATIC BRAKE & GEAR
- [SDR DXTA200702696](https://openairdocs.org/sdr/DXTA200702696.md): Mount · loose · Dec 20, 2007 · N669QS · Cessna 560XL · Elevator Tab Control System
  > ON TAKEOFF, F/O HAD TO USE FULL FORWARD PRESSURE TO KEEP NOSE DOWN. FOUND ELEVATOR TRIM WHEEL MOUNTING SCREWS LOOSE CAUSING THE POINTER TO SKIP ITS TRACK. REINDEX POINTER TO TRIM WHEEL AND TAKEOFF MARKER INDEX. RESECURED TRIM WHEEL SCREWS AS ORIGINAL REF CES

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT sdr_id, difficulty_date, n_number, aircraft_make, aircraft_model, part_name, part_condition, jasc_code, discrepancy
FROM 'https://openairdocs.org/data/latest/faa_service_difficulty_report.parquet'
WHERE n_number = 'N669QS' AND registry_match = 'registration'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/aircraft/N669QS/reports

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