# Service difficulty reports: N647QS, cancelled Dec 21, 2025

A list on [N647QS, cancelled Dec 21, 2025](https://openairdocs.org/deregistered/N647QS-2025-12-21.md).

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

- [SDR DXTA2025080604456](https://openairdocs.org/sdr/DXTA2025080604456.md): Lamp · blown · Aug 3, 2025 · N647QS · Cessna 560XL · Emergency Lighting
  > SEAT 10 EMERGENCY LIGHT INOP REMOVED DEFECTIVE LIGHT· 12W HALO P/N RL6860, INSTALLED CUSTOMER SUPPLIED "NEW" LIGHT·12W HALO P/N RL6860. INSTALLED GASPER TO ORIGINAL POSITION. APPLIED POWER TO A/C, PERFORMED OPS CHECK, OPS CHECK GOOD. REF CES60XL MM 33·50·0
- [SDR DXTA2025031902710](https://openairdocs.org/sdr/DXTA2025031902710.md): Windshield · cracked · Mar 16, 2025 · N647QS · Cessna 560XL · Flight Compartment Windows
  > FIRST OFFICER COCKPIT WINDOW CRACKED COMING INTO EGE. REMOVED RH COCKPIT WINDOW DUE TO CRACKED GLASS DAMAGE. REMOVED COCKPIT WINDOW INSTALLED REPAIRED COCKPIT WINDOW. APPLIED FILLET SEAL AND WAITED FOR PROPER CURE. PERFORMED PRESSURIZATION SYSTEM OPS CHECK.
- [SDR DXTA2023090794780](https://openairdocs.org/sdr/DXTA2023090794780.md): Unknown · unknown · Sep 6, 2023 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR HANDLE (BOTH OUTSIDE & INSIDE) GETTING PROGRESSIVELY MORE DIFFICULT TO MANIPULATE. PRE-CATCH LEVER OPERATES NORMALLY //SIGNOFF// VERIFIED WRITE UP. FOUND LOTS OF OVERSPRAY FROM MOLY LUBE TO PINS. REMOVED AIR STAIRS AND CLEANED INTERIOR AND EXTE
- [SDR DXTA2023061288520](https://openairdocs.org/sdr/DXTA2023061288520.md): Unknown · unknown · Jun 12, 2023 · N647QS · Cessna 560XL · Landing Gear System
  > CAPTAIN MLG BRAKE PEDAL: MAIN LANDING GEAR BRAKES NEED TO BE EVALUATED. BRAKES FEEL MUSHY AND EXCESSIVE FORCE REQUIRED TO STOP PLANE. CHECKED BRAKE PIN WEAR TO BE SATISFACTORY, CHECKED BRAKE SYSTEM CABLES FOR FRAYING AND PROPER TENSION WITH NO DEFECTS NOTED AT
- [SDR DXTA2023051886460](https://openairdocs.org/sdr/DXTA2023051886460.md): Unknown · unknown · May 17, 2023 · N647QS · Cessna 560XL · Engine (Turbine/Turboprop)
  > SMOKE IN COCKPIT / CABIN: IRRITATING CHEMICAL/OIL LIKE ODOR FROM WEMAC AIR OUTLETS JUST AFTER TAKEOFF AT HIGH ENGINE POWER SETTINGS SUCH AS T/O AND CLB POWER. APU IS DEFERRED. RETURNED TO FIELD. COMPLIED WITH ENVIRONMENTAL CONTROL SYSTEM BLEED AND TRIM AIR DU
- [SDR DXTA2023040383530](https://openairdocs.org/sdr/DXTA2023040383530.md): Unknown · unknown · Apr 3, 2023 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR: CABIN ENTRY DOOR DIFFICULT TO LOCK AND UNLOCK FROM INSIDE CABIN HANDLE HANDLE SEEMS TO BE BINDING WHEN OPERATING. CLEANED, LUBED AND ACTUATED DOOR HANDLE MULTIPLE TIMES UNTIL SMOOTH IAW AMM 52-10-01. NO OTHER DEFECTS NOTED.
- [SDR DXTA2022121976480](https://openairdocs.org/sdr/DXTA2022121976480.md): Sign · inoperative · Dec 17, 2022 · N647QS · Cessna 560XL · Emergency Lighting
  > EMERG EXIT SIGN/LIGHT: THE LIGHTED EXIT SIGN ON FORWARD SIDE OF THE MAIN CABIN DOOR IS INOPERATIVE. (FOUND DURING CREW TRAINING) // SIGNOFF// GAINED ACCESS TO AIRCRAFT AND CONNECTED MAIN SHIP BATTERY AS REQUIRED. TURNED ON ERNER LIGHTS AND VERLFLED THE EXIT S
- [SDR DXTA2022072866810](https://openairdocs.org/sdr/DXTA2022072866810.md): Spring · broken · Jul 27, 2022 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR: HANDLE HAS NO TENSION TO KEEP IT SECURE IN THE CLOSED POSITION. MAIN DOOR: DOOR IS VERY HARD TO OPEN FROM BOTH INSIDE AND OUTSIDE. // SIGNOFF// REMOVED BROKEN SPRING PN:SL5204-2 NSN FROM EXTERNAL MAIN ENTRANCE DOOR HANDLE. INSTALLED NEW SPRING PN:S
- [SDR DXTA2022072566560](https://openairdocs.org/sdr/DXTA2022072566560.md): Vent · abnormal · Jul 22, 2022 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR: MAIN CABIN DOOR. IN FLIGHT, CLIMBING THROUGH 11,000FT., CABIN DOOR ANNUNCIATOR LIGHT CAME ON. PERFORMED QRH PROCEDURE AND LIGHT REMAINED ON. CONDUCTED A DIVERT, AND CABIN DOOR LIGHT REMAINED ON THROUGH DESCENT, LANDING, AND TAXI. THE LIGHT WENT OUT
- [SDR DXTA2022040459570](https://openairdocs.org/sdr/DXTA2022040459570.md): Socket · defective · Apr 2, 2022 · N647QS · Gulstm 560 · Emergency Lighting
  > EMERG EXIT SIGN/LIGHT: VERTICAL EMERGENCY EXIT SIGN ON FORWARD SIDE OF MAIN CABIN DOOR (ABOVE PRE-CATCH RELEASE HANDLE) DOES NOT ILLUMINATE WITH PAX SAFETY ON OR WHEN EMERGENCY LIGHTS ARE SLECTED TO ON. THERE ARE ALSO SMALL WIRES VISIBLE NEAR THE EXIT PYRAMID
- [SDR DXTA2022031458460](https://openairdocs.org/sdr/DXTA2022031458460.md): Seal · damaged · Mar 13, 2022 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR ACOUSTIC SEAL: UPON POWER UP FOR TAKEOFF, WE EXPERIENCED A PERCUSSION EXPLOSION FROM THE CABIN. EXECUTED A LOW SPEED ABORT AND EXITED THE RUNWAY. UPON INSPECTION WE DISCOVERED THE MAIN CABIN DOOR DECORATIVE TRIM OUT OF POSITION, THE ACOUSTIC SEAL FRA
- [SDR DXTA2022022156990](https://openairdocs.org/sdr/DXTA2022022156990.md): Oil System · leaking · Feb 18, 2022 · N647QS · Cessna 560XL · Air Conditioning System
  > SMOKE & FUMES IN COCKPIT AFTER TAKEOFF. AT T/O POWER COLORLESS SMOKE WITH ACIDIC SMELL LIKE BURNED OIL, ONLY PRESENT AT T/O POWER NOT ON GROUND AT IDLE. RETURNED TO DEPARTURE AIRFIELD. AT REDUCED POWER SETTING SMOKE DECREASED. EASW CONFIRMED OIL LEAK. AFTE
- [SDR DXTA2021101750460](https://openairdocs.org/sdr/DXTA2021101750460.md): Seal · defective · Oct 17, 2021 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > CREW ABORTED TAKEOFF (AT 10 KTS) AFTER HEARING LOUD BOOM COMING FROM THE BACK. NO ANNUNCIATORS WERE PRESENT. CREW NOTICED A LARGE HOLE ON THE ACOUSTIC SEAL AND CONSTANT LOUD HISSING COMING FROM HOLE. // SIGNOFF // FOUND ACOUSTIC SEALS LEAKING AND UPPER CHANNEL
- [SDR DXTA2021090248040](https://openairdocs.org/sdr/DXTA2021090248040.md): Seal · torn · Sep 1, 2021 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > ON TAKEOFF AT KSFO AT 50 KTS, HEARD LOUD POP FROM CABIN. ABORTED TAKE OFF. AFTER TAXI IN AND PARK FOUND 3 ACOUSTIC SEALS DEFLATED, WITH A RIP IN THE TOP LEFT SEAL. THE BOTTOM LEFT SEAL IS INFLATED. PERFORMED OPERATIONAL TEST ON ACOUSTIC DOOR SEAL TO IDENTIFY "
- [SDR DXTA2021032940030](https://openairdocs.org/sdr/DXTA2021032940030.md): Seal · cracked · Mar 25, 2021 · N647QS · Cessna 560XL · Passenger/Crew Doors
  > COCKPIT/CABIN NOISE: ON TAKEOFF ROLL APPROACHING 50 KTS, WE HEARD A LOUD POPPING NOISE ( LIKE GUN SHOT)COMING FROM THE MAIN CABIN DOOR. FOLLOWED BY LOUD HISSING FROM AFT INBOARD MAIN CABIN DOOR. AFTER BLOCK IN FOUND HOLE IN RUBBER SEAL INSIDE THE CABIN DOOR FR
- [SDR DXTA2020100404167](https://openairdocs.org/sdr/DXTA2020100404167.md): Display · sparks · Oct 4, 2020 · N647QS · Cessna 560XL · Central Display
  > DURING DESCENT AT APPROXIMATELY FL200, I NOTICED THE FIRST OFFICERS SIDE PFD WENT BLACK. WITHIN A SECOND, I SAW POOF OF SMOKE COME FROM BEHIND THE DASH TOWARDS THE FLOOR, ACCOMPANIED WITH SPARKS AND A LITTLE BIT OF ASH. THE PFD THEN CAME BACK ON AND OPERATED
- [SDR DXTA2019020871996](https://openairdocs.org/sdr/DXTA2019020871996.md): Selector · defective · Feb 7, 2019 · N647QS · Cessna 560XL · Electrical Power System
  > STRONG SMELL OF BURNING WIRES ALONG WITH STRONG FUMES IN COCKPIT. NO VISIBLE FIRE OR SMOKE. OUTSIDE OF FINAL APPROACH NOTICED STRONG ODORS. EXPEDITED TO A LANDING. GAINED ACCESS TO AIRPLANE, CONNECTED BATTERY, APPLIED ELECTRICAL POWER WITH BATTERY SWITC
- [SDR EBVR20170327002](https://openairdocs.org/sdr/EBVR20170327002.md): Skin · cracked · Mar 27, 2017 · N647QS · Cessna 560XL · Vertical Stabilizer, Plate/Skin
  > CRACK IN THE VERTICAL STAB CAP, REPAIRED CRACK IN VERTICAL STAB CAP IAW REPORT S-750-ATA51/01RD (STRUCTURAL REPAIR OF COMPOSITE LAMINATE STRUCTURES). REPAIRED.
- [SDR EBVR20170327001](https://openairdocs.org/sdr/EBVR20170327001.md): Torque Tube · corroded · Mar 27, 2017 · N647QS · Cessna 560XL · Rudder Control System
  > RUDDER TORQUE TUBE AREA IS RUSTED, REMOVED THE RUDDER TORQUE TUBE AND INSTALLED NEW TORQUE TUBE. CORROSION WAS FOUND ON THE LOWER RUDDER RIB WHILE REPLACING THE TORQUE TUBE. REPAIRED THE LOWER RUDDER TORQUE TUBE RIB IAW ERO-889729, REV IR.
- [SDR DXTA2014061605801](https://openairdocs.org/sdr/DXTA2014061605801.md): Uplock Switch · failed · Jun 13, 2014 · N647QS · Cessna 560XL · Landing Gear Retraction/Extension System
  > AFTER GEAR RETRACTION ON TAKEOFF, RED GEAR UNSAFE LIGHT REMAINED ON. HYD PRESSURE LIGHT BEGAN FLASHING. PUT GEAR BACK DOWN USING THE NORMAL EXTENSION PROCEDURE. HYD PRESSURE & GEAR UNSAFE LIGHTS BOTH EXTINGUISHED. EXECUTED A NORMAL LANDING. HYD RESERVOIR
- [SDR DXTA2013120905595](https://openairdocs.org/sdr/DXTA2013120905595.md): Actuator · faulty · Dec 9, 2013 · N647QS · Cessna 560XL · Trailing Edge Flap Actuator
  > IN FLIGHT AFTER TAKEOFF, GEAR THEN FLAP RETRACTION HYD PRESS ANNUNCIATOR REMAINED ON. CYCLED FLAPS & GEAR LIGHT REMAINED ON. ON LANDING PREP AFTER GEAR EXTENSION HYD PRESS LIGHT WENT OUT AT 170 KTS. AFTER LANDING & FLAP RETRACTION HYD PRESS LIGHT STAYED ON.
- [SDR DXTA2012010304838](https://openairdocs.org/sdr/DXTA2012010304838.md): Actuator · inoperative · Jan 4, 2012 · N647QS · Cessna 560XL · Rudder Actuator
  > TAKE OFF REQUIRED EXTRA RIGHT RUDDER PRESSURE. ON CLIMBOUT TO 14,000 FT, ACFT REQUIRED FULL RT RUDDER TRIM AND FULL RT RUDDER AND THAT WAS NOT ENOUGH FOR COORDINATED FLIGHT. ON RETURN TO AIRPORT AT LOWER POWER SETTINGS, PLANE REQUIRED HALF OF RT RUDDER TRIM S
- [SDR DXTA2012010404838](https://openairdocs.org/sdr/DXTA2012010404838.md): Trim System · malfunctioned · Jan 4, 2012 · N647QS · Cessna 560XL · Rudder Tab Control System
  > TAKEOFF REQUIRED EXTRA RT RUDDER PRESSURE. ON CLIMBOUT TO 14,000 FT, REQUIRED FULL RT RUDDER TRIM AND FULL RT RUDDER AND THAT WAS NOT ENOUGH FOR COORDINATED FLIGHT. ON RETURN TO AIRPORT AT LOWER POWER SETTINGS PLANE REQUIRED HALF OF RT RUDDER TRIM SETTING FO
- [SDR DXTA2010092204250](https://openairdocs.org/sdr/DXTA2010092204250.md): Actuator · inoperative · Sep 21, 2010 · N647QS · Cessna 560XL · Stabilizer Control System
  > AFTER TAKEOFF, FLAPS WERE SELECTED TO ZERO POSITION RESULTING IN A STAB MISCOMP, A HYD PRESS, AND A MC LIGHT. UPON LANDING, STAB CONFIRMED NOT TO MOVE FULL UP OR DOWN. TROUBLESHOT TO INOPERATIVE STAB ACTUATOR. REPLACED ACTUATOR WITH MODIFIED UNIT IAW MM. OPS
- [SDR DXTA2010083004209](https://openairdocs.org/sdr/DXTA2010083004209.md): Oil System · empty · Aug 29, 2010 · N647QS · Cessna 560XL · Turbine Engine Oil System
  > DURING CLIMB, HAD A MASTER WARNING ANNUNCIATOR & LT OIL PRESS ILLUMINATE. NOTED A LT ENGINE OIL PRESSURE READING 45 PSI. RT ENGINE INDICATED 75 PSI. DURING NEXT 90 SECS, LT ENGINE OIL PRESSURE VARIED BETWEEN 45 & 55 PSI. RT ENGINE REMAINED STEADY AT 75-80 PS
- [SDR DXTA2010070704145](https://openairdocs.org/sdr/DXTA2010070704145.md): Ahrs · malfunctioned · Jul 5, 2010 · N647QS · Cessna 560XL · Integrated Flight System
  > HEADING FAIL INDICATED ON LEFT SIDE PFD AND MFD WHILE IN CRUISE FLIGHT AT FL 400. WITH REV MODE SELECTED, INDICATION NORMAL. R & R NR 1 AHRS UNIT. C/W COMPASS SWING. OPS CHECKS GOOD IAW MM 34-21-01.
- [SDR DXTA2009060403677](https://openairdocs.org/sdr/DXTA2009060403677.md): Circuit Board · inoperative · Jun 3, 2009 · N647QS · Cessna 560XL · Hydraulic Power System Wiring
  > WHILE ON APPROACH, FLAPS WERE SELECTED TO 15(DEG). FLAP INDICATOR DID NOT MOVE & STAB MISCOMP ANNUNCIATOR ILLUMINATED. WHEN MLG SELECTED DOWN, THEY DID NOT MOVE. APPROXIMATELY 30 SECONDS AFTER MLG WAS SELECTED DOWN, FLAPS MOVED, MLG MOVED & STAB MISCOMP ANN
- [SDR DXTA200811233371](https://openairdocs.org/sdr/DXTA200811233371.md): Lamp · burned out · Nov 23, 2008 · N647QS · Cessna 560XL · Landing Gear Position and Warning
  > RT GEAR DOWN INDICATOR LIGHT FAILED TO ILLUMINATE WHEN GEAR SELECTED DOWN. ALSO FAILED TO ILLUMINATE ON ROTARY TEST. FOLLOWED EMER PROCEDURE AND BLEW THE GEAR DOWN. (NOTE - WHEN GEAR WAS CYCLED UP ON GO AROUND THE RT GEAR IND LIGHT MOMENTARILY FLASHED ON).
- [SDR DXTA2008112403371](https://openairdocs.org/sdr/DXTA2008112403371.md): Indicator · inoperative · Nov 23, 2008 · N647QS · Cessna 560XL · Landing Gear Position and Warning
  > RT GEAR DOWN INDICATOR LIGHT FAILED TO ILLUMINATE WHEN GEAR SELECTED DOWN.
- [SDR DXTA200802821](https://openairdocs.org/sdr/DXTA200802821.md): Fuel Control · malfunctioned · Feb 3, 2008 · N647QS · Cessna 560XL · Fuel Control/Turbine Engines
  > DURING TAKEOFF ROLL THE NR 1 ENG DID NOT DEVELOPE T/O POWER. TARGET N1 WAS 88.6 PERCENT BUT ONLY DEVELOPED 81 PERCENT N1. DOWNLOADED NR1 ENG. DCU AND SENT INFO TO MFG, SWAPPED EEC'S AND RAN FOR PWR OF DAY. DOWNLOADED DCU NR SENT TO MFG. PERFORMED OPS CHECK O
- [SDR DXTA200702497](https://openairdocs.org/sdr/DXTA200702497.md): Connector · corroded · Sep 25, 2007 · N647QS · Cessna 560XL · Flight Control System Wiring
  > NO TAKEOFF ANNUNCIATOR AND AURAL WARNING TRIGGERED UPON APPLICATION OF TAKEOFF POWER. ABORTED TAKEOFF. REPLACED SPEED BRAKE CONNECTOR IAW MM 20-10-04. SPEED BRAKES OP'S OK IAW MM 27-61-00.
- [SDR DXTA200601211](https://openairdocs.org/sdr/DXTA200601211.md): Extinguisher · low · Jan 23, 2006 · N647QS · Cessna 560XL · Fire Bottle, Fixed
  > FIRE EXT BOTTLE LOW LIGHT ILLUMINATED IN FLIGHT. LIGHT EXTINGUISHED JUST PRIOR TO LANDING. REMOVED AND REPLACED THE FORWARD FIRE EXTINGUISHER BOTTLE IN ACCORDANCE WITH CESSNA 560XL MAINTENANCE MANUAL 26-21-01.

## 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 = 'N647QS' AND deregistration_id = 'N647QS-2025-12-21'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N647QS-2025-12-21/reports

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.