# Service difficulty reports: N594QS, cancelled Sep 22, 2026

A list on [N594QS, cancelled Sep 22, 2026](https://openairdocs.org/deregistered/N594QS-2026-09-22.md).

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

- [SDR DXTA2026020906803](https://openairdocs.org/sdr/DXTA2026020906803.md): Door · binding · Feb 6, 2026 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN ENTRANCE DOOR, HARD TO MOVE HANDLE TO DOOR CLOSED, LOCK, AND ALSO HARD TO MOVE THE HANDLE TO OPEN DOOR. WITH DOOR OPEN THE HANDLE MOVES NICE AND EASILY LIKE IT SHOULD. BUT WITH DOOR CLOSED HANDLE IS VERY HARD TO MOVE. WE HAD TO PUT OUR BODY WEIGHT INTO I
- [SDR DXTA2025101505292](https://openairdocs.org/sdr/DXTA2025101505292.md): Bolt · missing · Oct 12, 2025 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > THE MAIN CABIN DOOR PINS WILL NOT EXTEND WHEN MOVING THE DOOR HANDLE TO THE LOCK POSITION. THE DOOR HANDLE MOVES FREELY. WHEN WE OPENED THE CABIN DOOR, WE FOUND THAT THE HANDLE ON THE OUTSIDE OF THE DOOR WORKS PROPERLY BUT THE HANDLE ON THE INSIDE OF THE DOOR
- [SDR DXTA2025070304088](https://openairdocs.org/sdr/DXTA2025070304088.md): Pressure Switch · defective · Jun 29, 2025 · N594QS · Cessna 560XL · Landing Gear System Wiring
  > WHILE TAXING OUT THE PWR BRKS CB TRIPPED, STOPPED THE ACFT AND SET THE PARKING BRAKES BEFORE WE LOST ALL BRAKE PRESSURE. WE SHUT OFF THE ENGINES AND WERE TUGGED BACK TO AVFLIGHT. WE NEVER NEEDED OR USED THE EMER. BRAKES. REPLACED BRAKE PUMP PRESSURE SWITCH.
- [SDR DXTA2025051403447](https://openairdocs.org/sdr/DXTA2025051403447.md): Brake · malfunctioned · May 11, 2025 · N594QS · Cessna 560XL · Landing Gear Brake System
  > BRAKE PRESSURE LIGHT: ON LANDING AFTER APPLYING THE AIRCRAFT BRAKES THE LOW BRAKE PRESSURE AND ANTI SKID ANNUNCIATORS ILLUMINATED. USED THE PNEUMATIC EMER BRAKES TO STOP. THE POWER BRAKE CB DIDN'T TRIP. AFTER THE AIRCRAFT STOPPED THE BRAKE ANNUNCIATOR'S WENT O
- [SDR DXTA2025011401906](https://openairdocs.org/sdr/DXTA2025011401906.md): Fuel Nozzle · failed · Jan 9, 2025 · N594QS · Cessna 560XL · Air Distribution System
  > ON THE GROUND WITH THE APU RUNNING, THERE IS AN OVERWHELMING SMELL OF RAW JET FUEL IN THE COCKPIT. REPLACED FUEL NOZZLE ASSEMBLY. OPS CHECK GOOD. IAW HONEYWELL MM RE 100[XL] 49-30-07
- [SDR DXTA2025010801853](https://openairdocs.org/sdr/DXTA2025010801853.md): Unknown · odor · Jan 5, 2025 · N594QS · Cessna 560XL · Air Distribution System
  > DURING THE LAST FLIGHT BOTH PILOTS SMELLED AN ORDER LIKE A CROSS BETWEEN DIESEL AND STANDING BEHIND AN AIRCRAFT WITH AN ENGINE RUNNING UP AT ALTITUDE. SMELL HIT STRONG 3 TIMES IN THE FIRST HOUR OF A 2:12 FLIGHT, BOTH SIDES. ON THE LEFT SIDE THE SMELL DISAPPE
- [SDR DXTA2024050611688](https://openairdocs.org/sdr/DXTA2024050611688.md): Battery · no test · May 5, 2024 · N594QS · Cessna 560XL · Emergency Lighting
  > EMERGENCY LIGHTS ARE ILLUMINATED WITH THE EMER LTS SWITCH IN THE ARM OR ON POSITION WHETHER ON BATTERY OR APU POWER. THE LIGHTS TURN OFF WHEN OFF IS SELECTED. ACCESSED AIRRCRAFT AND APPIED POWER. PERFORMED OPS CHECK ON EMERGENCY LIGHTS AND FAULT WAS CONARMED.
- [SDR DXTA2023090894850](https://openairdocs.org/sdr/DXTA2023090894850.md): Valve · defective · Sep 7, 2023 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR: WITH BATTERY ON AFTER ENGINE SHUTDOWN WE WERE UNABLE TO OPEN MAIN CABIN DOOR FOR APPROX 15-20 SECOND. REMOVED AND INSTALLED NEW VALVE ASSEMBLY CABIN DOOR SEAL DEFLATION. SUPPLIED BY NETJETS AVIATION, PN-6211329-2 PER 52-10-04
- [SDR DXTA2023080292150](https://openairdocs.org/sdr/DXTA2023080292150.md): Unknown · unknown · Aug 2, 2023 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > PASSENGER / CREW DOORS: AFTER SHUTDOWN, THE MAIN CABIN DOOR HANDLE WAS STICKING TRYING TO OPEN THE DOOR. TRIED AGAIN WITH NO POWER ON THE AIRPLANE AND THE DOOR OPENED AND CLOSED NORMALLY. STARTED APU, AND THE HANDLE OR THE DOOR STUCK WITH SERVICE AIR AVAILABL
- [SDR DXTA2023031382370](https://openairdocs.org/sdr/DXTA2023031382370.md): Unknown · unknown · Mar 10, 2023 · N594QS · Cessna 560XL · Landing Gear Retraction/Extension System
  > LEFT MLG LANDING GEAR RETRACTION: AFTER TAKEOFF THE MASTER CAUTION ILLUMINATED WITH A HYD PRESS LIGHT AND STAB MISCOMPARE LIGHT RAN CHECKLIST THEN NOTICED THE GESR UNLOCK LIGHT ON CYCLED THE GEAR SEVERAL TIMES AND THE LIGHT WOULD NOT EXTINGUISH WITH THE GEAR
- [SDR DXTA2022111073680](https://openairdocs.org/sdr/DXTA2022111073680.md): Water Heater · defective · Nov 10, 2022 · N594QS · Cessna 560XL · Waste Disposal System
  > ON PREFLIGHT IN THE LAV CLOSET, FOUND THE WATER SYSTEMS 7.5 AMP CIRCUIT BREAKER TRIPPED. CALLED MX & DECIDED TO RESET IT ON THE GROUND. IT WAS FUNCTIONING NORMALLY. CLIMBING THROUGH 7000 TO 8000 FEET, NOTICED AN ACRID ELECTRICAL ODOR. DECLARED AN EMERGENCY, SI
- [SDR DXTA2022042961070](https://openairdocs.org/sdr/DXTA2022042961070.md): Valve · faulted · Apr 28, 2022 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR PRIMARY SEAL: AFTER LANDING, WITH APU STARTED AIRBORNE IN THE TERMINAL AREA, & STILL RUNNING IN THE CHOCKS, MAIN DOOR PRIMARY SEAL TOOK 12-15 SECS TO DEFLATE AFTER DOOR HANDLE WAS ROTATED TO OPEN POSITION, PREVENTING DOOR FROM OPENING. AFTER OWNER
- [SDR DXTA2021112452420](https://openairdocs.org/sdr/DXTA2021112452420.md): Valve · defective · Nov 23, 2021 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR: AFTER LANDING WHILE MOVING THE MAIN CABIN DOOR LEVER TO OPEN POSITION MAIN CABIN DOOR WOULD NOT OPEN FOR APPROXIMATELY 15 SECONDS OR LONGER. HEARD HISSING SOUND,SEEMS LIKE DOOR SEAL NOT DEFLATING AT NORMAL RATE // SIGNOFF // REMOVED FAULTY DOOR SEA
- [SDR DXTA2021040240370](https://openairdocs.org/sdr/DXTA2021040240370.md): Apu · smoke · Apr 1, 2021 · N594QS · Cessna 560XL · Airborne Auxiliary Power Unit (APU) System
  > APU SMOKE: AFTER LANDING WE STARTED THE APU WITH BLEED AIR ON AND DID TAXI FOR APPROX 8 MIN, DEPLANED THE PAX AND ONCE DONE NOTICED THICK SMOKE IN CABIN AND COCKPIT. WE IMMEDIATELY DID SHUT DOWN THE APU AND THE SMOKE DISSIPATED AFTER ABOUT 15 MIN. NO EXTERIOR
- [SDR 2018F00102](https://openairdocs.org/sdr/2018F00102.md): Stiffener · mislocated · Feb 14, 2018 · N594QS · Cessna 560XL · Fuselage Miscellaneous Structure
  > STIFFENER MISLOCATED.
- [SDR 2018F00101](https://openairdocs.org/sdr/2018F00101.md): Pulley Bracket · broken · Feb 14, 2018 · N594QS · Cessna 560XL · Nose/Tail Landing Gear
  > NOSE WHEEL STEERING PULLEY BRACKET BROKEN.
- [SDR JGVR20170526001](https://openairdocs.org/sdr/JGVR20170526001.md): Skin · corroded · May 25, 2017 · N594QS · Cessna 560XL · Wing, Plate/Skin
  > CENTER WING BOND ASSEMBLY HAS CORROSION ON IT'S LAND FOR FUEL PANEL 510BB. FOUND DURING C INSPECTION. REMOVED CORROSION, PERFORMED EDDY CURRENT CHECK OF WING FUEL LAND WITH NO CRACK OR CORROSION INDICATIONS. REPAIRED IN ACCORDANCE WITH CESSNA ENGINEERING MEMO
- [SDR DXTR2016091402](https://openairdocs.org/sdr/DXTR2016091402.md): Skin · corroded · Sep 13, 2016 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR EXTERIOR SKIN CORRODED BS 194 WL 100, 2 INCHES LONG AND WL 167, 3 INCHES LONG, 1 INCH WIDE. REPAIRED IAW AQRD ERO-859860.
- [SDR DXTR2016091401](https://openairdocs.org/sdr/DXTR2016091401.md): Skin · corroded · Sep 13, 2016 · N594QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR EXTERIOR SKIN CORRODED AT BS 194 WL 100, 2 INCHES LONG AND WL 167, 3 INCHES LONG AND 1 INCH WIDE. REPAIRED IAW ERO-859860.
- [SDR DXTA2014101005909](https://openairdocs.org/sdr/DXTA2014101005909.md): Pump · failed · Oct 9, 2014 · N594QS · Cessna 560XL · Landing Gear Brake System
  > WHEN ACFT WAS ROLLING TO A STOP, THE BRAKES FAILED. THE EMERGENCY BRAKE WAS USED TO BRING THE ACFT TO A STOP. REMOVED AND REPLACED THE PUMP ASSEMBLY. OPS CHECKED GOOD. WORK ACCOMPLISHED IAW MM 32-42-06.
- [SDR DXTA2013050805389](https://openairdocs.org/sdr/DXTA2013050805389.md): Lock Nut · unserviceable · Mar 25, 2013 · N594QS · Cessna 560XL · Turbine Engine Combustion Section
  > ACCOMPLISH BORESCOPE INSPECTION OF COMBUSTION CHAMBER LINER COOLING RING SEGMENT SELF LOCKING NUTS. COMPLIED WITH TASK CARD TC-5XL-72-100504R1 IAW TASK CARD INSTRUCTIONS AND SB30335R1 INSTRUCTIONS. FOUND 2 BOLTS CONDITION "D" (MISSING) AND ALL REMAINING BOLTS
- [SDR DXTA2012081505096](https://openairdocs.org/sdr/DXTA2012081505096.md): Uplock Switch · unserviceable · Aug 14, 2012 · N594QS · Cessna 560XL · Landing Gear Position and Warning
  > TROUBLESHOT LANDING GEAR SYS, FOUND UPLOCK ACTUATOR LINK/ SPRING ASSY STICKING IN THE RETRACTED POSITION. ALSO FOUND NLG UPLOCK SWITCH INTERMITTENT. R & R NOSE UPLOCK SWITCH AND NOSE UPLOCK LINK IAW THE MM 32-30-05. OPS CHECKED SATISFACTORY. LINK WAS REMOVED
- [SDR DXTA2011082204705](https://openairdocs.org/sdr/DXTA2011082204705.md): Landing Gear · malfunctioned · Aug 20, 2011 · N594QS · Cessna 560XL · Landing Gear Retraction/Extension System
  > NOSE GEAR DID NOT RETRACT AFTER TAKEOFF. MLG RETRACTED NORMAL & INDICATORS WENT OUT. NLG INDICATOR LIGHT REMAINED ILLUMINATED. HYDRAULIC LIGHT CYCLED NORMAL & WENT OUT AFTER FLAPS & MLG RETRACTED. LANDED NORMAL. POST FLIGHT INSPECTION SHOWED NO ABNORMAL IN
- [SDR DXTA2009043003624](https://openairdocs.org/sdr/DXTA2009043003624.md): Pump · leaking · Apr 30, 2009 · N594QS · Cessna 560XL · Hydraulic Pump (Electric/Engine), Main
  > RIGHT AFTER TOUCHDOWN, LT "LO HYD FLOW" LIGHT ILLUMINATED. ALSO RT "LO HYD FLOW" LIGHT ILLUMINATED, FOLLOWED BY "LO HYD LEVEL" & "STAB MISCOMPARE" LIGHT. ON POST FLT, FOUND HYD FLUID ON LT BACK THIRD OF ACFT. R&R LT HYD PUMP, FILTER & PRESS LINE. FLUSHED LI
- [SDR DXTA200803037](https://openairdocs.org/sdr/DXTA200803037.md): Lamp · burned out · May 1, 2008 · N594QS · Cessna 560XL · Landing Gear Position and Warning
  > NOSE GEAR INDICATOR LIGHTS INOPERATIVE. REPLACED BOTH NOSE GEAR INDICATOR BULBS WITH NEW BULBS IAW MM 32-61-00. OP'S CHECKED OKAY.

## 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 = 'N594QS' AND deregistration_id = 'N594QS-2026-09-22'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N594QS-2026-09-22/reports

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