# Service difficulty reports: N642QS, cancelled Jul 7, 2025

A list on [N642QS, cancelled Jul 7, 2025](https://openairdocs.org/deregistered/N642QS-2025-07-07.md).

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

- [SDR DXTA2025041703057](https://openairdocs.org/sdr/DXTA2025041703057.md): Powerpack · defective · Apr 11, 2025 · N642QS · Cessna 560XL · Hydraulic System, Main
  > BRAKE PRESSURE LIGHT: WHILE HOLDING SHORT OF RUNWAY AMBER ANTI SKID ANNUCIATOR ILLUMINATED AND POWER BRAKE CIRCUIT BREAKER TRIPPED. CALLLED MAINTENACE DID ONE RESET AND TOLD TO NOT TAKEOFF. BACK TAXIING RUNWAY 10 LOST POWER BRAKES AND LOW BRAKE PRESS LIGHT
- [SDR DXTA2025031002617](https://openairdocs.org/sdr/DXTA2025031002617.md): Battery Pack · inoperative · Mar 8, 2025 · N642QS · Cessna 560XL · Emergency Lighting
  > FORWARD CABIN EMERGENCY LIGHTS ARE INOP. REPLACED FWD EMERGENCY BATTERY PACK. OPS CHECK GOOD. IAW CE-560XL MM 33-50-01.
- [SDR DXTA2024111201109](https://openairdocs.org/sdr/DXTA2024111201109.md): Actuator · defective · Nov 10, 2024 · N642QS · Cessna 560XL · Aircraft Fuel Distribution System
  > LEFT FUEL TRANSFER: WHILE AT FL400, FUEL CROSSFEED WAS SELECTED FROM L TANK TO R ENG. THE FUEL XFEED AND FUEL BOOST L ANNUNCIATED AS NORMAL. SHORTLY THEREAFTER WE RECEIVED A MASTER CAUTION WITH FUEL BOOST R ANNUCIATOR. THE CROSSFEED WAS THEN SELECTED OFF AND
- [SDR DXTA2023070390200](https://openairdocs.org/sdr/DXTA2023070390200.md): Unknown · unknown · Jul 3, 2023 · N642QS · Cessna 560XL · Landing Gear Brake System
  > MLG BRAKE PRESSURE: DURING TAXI, LOST ALL BRAKE PRESSURE AT THE PEDALS FOR ABOUT 5-10 SECONDS. BRAKE PRESSURE RETURNED AND BROUGHT AIRCRAFT TO STOP. HAD AIRCRAFT TUGGED TO RAMP. NO LEAKS NOTED AT BRAKES. BRAKE RESERVOIR AND ACCUMULATOR NORMAL. NO BREAKERS PO
- [SDR DXTA2023022080730](https://openairdocs.org/sdr/DXTA2023022080730.md): None · none · Feb 18, 2023 · N642QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR HANDLE: MAIN DOOR HANDLE REQUIRES EXCESSIVE FORCE TO OPEN AND LOCK FROM INSIDE OF CABIN. /// SIGN OFF /// PERFORMED GVI OF MED AND FOUND VERY DIRTY DOOR PINS. CLEANED AND LUBRICATED DOOR PINS. DOOR OPS CHECKED GOOD. ALL WORK DONE IAW CE-560XLS AMM CH
- [SDR DXTA2022072666780](https://openairdocs.org/sdr/DXTA2022072666780.md): Connector · loose · Jul 26, 2022 · N642QS · Cessna 560XL · Emergency Lighting
  > FLOOR EMERG EXIT LIGHT: DROP ISLE EMERGENCY LIGHT STRIP UNDER MAIN CABIN ENTRY DOOR ILLUMINATES OFF AND ON WITH EMER LTS SWITCH IN ON POSITION. APPEARS THE LIGHTING STRIP CONNECTION IS LOOSE // REMOUNTED LIGHT STRIP OPERATIONAL CHECK WAS FOUND TO BE SATISFAC
- [SDR DXTA2022040859970](https://openairdocs.org/sdr/DXTA2022040859970.md): None · defective · Apr 7, 2022 · N642QS · Gulstm 560 · Emergency Lighting
  > CABIN EMERG LIGHT: FRONT HALF OF EMERGENCY LIGHTS IN THE CABIN NOT WORKING THE EXIT LIGHT, FLOOR LIGHTS IN, OVERHEAD LIGHTS ON INITIAL PREFLIGHT. AFTER COLD SOKE PROCEDURE TR 21-04 APU RAN GOR 30 MINUTES LIGHTS CAME ON BRIEFLY FOR LESS THAN 20 SECONDS AND THEN
- [SDR DXTA2022012555660](https://openairdocs.org/sdr/DXTA2022012555660.md): Spring · defective · Jan 24, 2022 · N642QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN CABIN DOOR EXTERIOR DOOR HANDLE. WHEN CLOSING THE MAIN CABIN DOOR FROM INSIDE IT WILL NOT MOVE THE EXTERIOR DOOR HANDLE, STICKS OUT. // SIGNOFF// REMOVED AND REPLACED MAIN CABIN DOOR EXTERIOR DOOR HANDLE SPRING P/N SL5204-2 WITH A CUSTOMER SUPPUED NEW PA
- [SDR DXTA2021081947200](https://openairdocs.org/sdr/DXTA2021081947200.md): Indicator · inaccurate · Aug 18, 2021 · N642QS · Cessna 560XL · Door Warning System
  > MAIN DOOR VISUAL INDICATOR: MAIN DOOR HANDLE FLAG INDICATES LOCKED WHEN DOOR IS UNLOCKED, AND INDICATES UNLOCKED WHEN DOOR IS LOCKED. REMOVED. THE MAIN DOOR STEPS TO GAIN ACCESS TO THE HAND FLAG INDICATOR. REPOSITIONED THE MAIN DOOR HANDLE FLAG LNDI.CATOR I
- [SDR JGVR20210225001](https://openairdocs.org/sdr/JGVR20210225001.md): Structure · corroded · Feb 25, 2021 · N642QS · Cessna 560XL · Rudder Structure
  > FOUND THE UPPER TRAILING EDGE EXTRUSION ON THE RUDDER TO BE CORRODED BEYOND LIMITS. REPLACED UPPER TRAILING EDGE EXTRUSION WITH NEW CESSNA PN 5533000-30. PAINTED AND BALANCED RUDDER AS REQUIRED.
- [SDR DXTA2020121204458](https://openairdocs.org/sdr/DXTA2020121204458.md): Valve · defective · Dec 12, 2020 · N642QS · Cessna 560XL · Passenger/Crew Doors
  > MAIN DOOR, HANDLE WILL NOT OPEN MAIN DOOR FROM THE OUTSIDE OR INSIDE WITHOUT PUSHING THE PRECATCH RELEASE BUTTON. SIGN OFF. REMOVED MAIN ENTRY DOOR ALT TRIM PANEL TO ACCESS THE MAIN CABIN DOOR ACOUSTIC SEAL INFLATION VALVE. REMOVED THE STICKING ACOUSTIC SEA
- [SDR 2020FA0000510](https://openairdocs.org/sdr/2020FA0000510.md): Spade Door · corroded · Nov 18, 2020 · N642QS · Cessna 560XL · Doors
  > CABIN SPADE DOOR CORROSION ENGINEERING LETTER DQ278849.
- [SDR 2020F00452](https://openairdocs.org/sdr/2020F00452.md): Skin · corroded · Nov 18, 2020 · N642QS · Cessna 560XL · Wing, Plate/Skin
  > LEFT STUB WING SKIN STRAP CORROSION ENGINEERING LETTER DQ278850.
- [SDR 2020F00451](https://openairdocs.org/sdr/2020F00451.md): Skin · corroded · Nov 18, 2020 · N642QS · Cessna 560XL · Wing, Plate/Skin
  > RIGHT WING UPPER SKIN FILLER CORROSION ENGINEERING LETTER DQ27848M1.
- [SDR 2020F00450](https://openairdocs.org/sdr/2020F00450.md): Skin · corroded · Nov 18, 2020 · N642QS · Cessna 560XL · Fuselage Main, Plate/Skin
  > RT NOSE SKIN CORROSION ENGINEERING LETTER DQ27848M1.
- [SDR 2020F00449](https://openairdocs.org/sdr/2020F00449.md): Skin · corroded · Nov 18, 2020 · N642QS · Cessna 560XL · Fuselage Main, Plate/Skin
  > LT NOSE SKIN CORROSION ENGINEERING LETTER DQ27848M1.
- [SDR EBVR20191212001](https://openairdocs.org/sdr/EBVR20191212001.md): Trim Tab · cracked · Dec 12, 2019 · N642QS · Cessna 560XL · Rudder Tab Control System
  > FOUND CRACK ON LOWER TRAILING EDGE OF RUDDER TRIM TAB. FABRICATED AND INSTALLED DOUBLER ON RUDDER TRIM TAB LOWER TRAILING EDGE. WORK ACCOMPLISHED IAW AQRD ERO-965397 DATED 12-11-19 AND 8110-3 DATED 12-11-19
- [SDR DXTR2017022501](https://openairdocs.org/sdr/DXTR2017022501.md): Web · cracked · Feb 22, 2017 · N642QS · Cessna 560XL · Passenger/Crew Doors
  > MED HAS ONE CRACK EACH ON THE FWD & AFT WEB ASSY. EACH CRACK MEASURES APPROXIMATELY 0.25 INCHES LONG. ACCOMPLISHED MAJOR REPAIR IAW ERO-886507 DATED FEB 23/2017 & FAA FORM 8110-3 DATED FEB 23/2017.
- [SDR DXTA2015051806019](https://openairdocs.org/sdr/DXTA2015051806019.md): Trim System · jammed · May 15, 2015 · N642QS · Cessna 560XL · Elevator Tab Control System
  > DESCENDING THROUGH APPROXIMATELY FL 340 GOT PITCH TRIM ANNUNCIATOR. DISENGAGED AUTOPILOT & REALIZED IT WAS A JAMMED ELEVATOR TRIM. RAN CHECKLIST WHILE MAKING DECENT TO LOWER & WARMER ALTITUDE. AFTER LEVEL AT 4000 FEET FOR APPROX FIVE MINUTES ELEVATOR TRIM U
- [SDR DXTA2014091205880](https://openairdocs.org/sdr/DXTA2014091205880.md): Brake Sys · contaminated · Sep 11, 2014 · N642QS · Cessna 560XL · Landing Gear Brake System
  > LEFT MAIN BRAKE IS GRABBING WITH MODERATE BRAKE APPLICATIONS. MOST PRONOUNCED AT HIGHER SPEEDS INCLUDING LANDING ROLLOUT. A BINDING NOISE CAN BE HEARD WHEN APPLYING HARDER LEFT BRAKE APPLICATIONS. BLED LEFT AND RIGHT BRAKES AND PERFORMED OPERATIONAL CHECK O
- [SDR DXTA2013081305473](https://openairdocs.org/sdr/DXTA2013081305473.md): Brake Sys · contaminated · Aug 12, 2013 · N642QS · Cessna 560XL · Landing Gear Brake System
  > LEFT BRAKE GRABBING DURING TAXI AT SLOW SPEEDS, CAUSING THE ACFT TO VIBRATE. FOUND AIR IN BRAKES. BLEED BRAKES IAW MM 32-42-00, PERFORMED TAXI CHECK AND BRAKES CHECKED GOOD.
- [SDR DXTA2013032005325](https://openairdocs.org/sdr/DXTA2013032005325.md): Apu · smoke · Mar 19, 2013 · N642QS · Cessna 560XL · APU Core Engine
  > WITH APU RUNNING ON ENGINE START, CABIN FILLED WITH SMOKE. SHUTDOWN ENGINES AND APU, LATER STARTED APU AND CABIN FILLED WITH SMOKE, APU SHUTDOWN BY ITSELF. STARTED RT ENGINE AND SMOKE CAME INTO CABIN AGAIN, SHUTDOWN RT ENGINE. CHECKED APU OIL AND BOTH LIG
- [SDR DXTA2013012805263](https://openairdocs.org/sdr/DXTA2013012805263.md): Engine · shutdown · Jan 27, 2013 · N642QS · Cessna 560XL · Engine (Turbine/Turboprop)
  > CLIMBING THRU 18,000' AND JUST TURNED ANTI-ICE OFF, WE HEARD A LOUD BANG FOLLOWED BY MULTIPLE BANGS, WITH VIBRATION AND A MOMENTARY SMELL OF SMOKE THRU THE ENVIROMENTAL SYS. LEFT ENG ITT WAS IN THE RED WITH NO OTHER ENG PARAMETERS NOTED TO BE IN THE RED. WE S
- [SDR DXTA2012110705173](https://openairdocs.org/sdr/DXTA2012110705173.md): Unknown · unknown · Nov 6, 2012 · N642QS · Cessna 560XL · Control Column Section
  > SHORTLY AFTER A TAKEOFF A VERY PROMINENT GRINDING FEELING COULD BE FELT IN THE YOKE. THIS GRINDING COULD BE FELT DURING THE CLIMB AND AT INTERMEDIATE LEVEL OFF ALTITUDES. THE GRINDING DID NOT SEEM TO DISSIPATE UNTIL WE WERE ON FINAL APPROACH AND AT APPROACH SP
- [SDR DXTA2012090405118](https://openairdocs.org/sdr/DXTA2012090405118.md): Sensor · malfunctioned · Sep 8, 2012 · N642QS · Cessna 560XL · Cabin Cooling System
  > ACM OVERHEAT ANNUNCIATOR ILLUMINATED AFTER TAKEOFF. ABNORMAL CHECKLIST WAS FOLLOWED AND RETURNED TO AIRPORT. AFTER ILLUMINATION OF THE ACM OVERHEAT ANNUNCIATOR, A WARM RUSH OF AIR AND A BURNED ODOR DETECTED WITHIN CABIN. TROUBLESHOT SYS DOWN TO A RESISTIVE T
- [SDR DXTA2012091005118](https://openairdocs.org/sdr/DXTA2012091005118.md): Warning Light · illuminated · Sep 8, 2012 · N642QS · Cessna 560XL · Cabin Cooling System
  > ACM OVERHEAT ANNUNCIATOR ILLUMINATED AFTER TAKEOFF. ABNORMAL CHECKLIST WAS FOLLOWED AND WE RETURNED TO THE AIRPORT. AFTER OBSERVING ANNUNCIATOR, THERE WAS A WARM RUSH OF AIR AND A BURNED ODOR DETECTED WITHIN THE CABIN.
- [SDR DXTA2012083105010](https://openairdocs.org/sdr/DXTA2012083105010.md): Gasket · leaking · Aug 30, 2012 · N642QS · Cessna 560XL · Engine (Turbine/Turboprop)
  > LEFT ENGINE ITT EXCEEDED LIMITS AFTER TAKEOFF. ITT REACHED 800 DEGREES FOR NO MORE THAN 30 SECONDS, AND RETURNED WITHIN LIMITS UPON THROTTLE RETRACTION. DOWNLOADED NR 1 ENGINE DCU, VERIFIED MAX ITT REACHED WAS 725. TURBINE TRACKER SHOWED MAX ITT REACHED 730.
- [SDR DXTA200802799](https://openairdocs.org/sdr/DXTA200802799.md): Warning Light · illuminated · Jan 25, 2008 · N642QS · Cessna 560XL · Central Warning
  > (EMERGENCY DECLARED) PASSING THRU 10,000 FT, RT WING OVERHEAT LIGHT ILLUMINATED WITH ANTI-ICE SWITCH IN (OFF) POSITION. REDUCED POWER ON RT ENGINE TO IDLE AND LIGHT DIDN’T EXTINGUISH. APPROX 5 MIN LATER WHILE ENROUTE TO LANDING, LIGHT DID EXTINGUISH. LANDED
- [SDR DXTA200701939](https://openairdocs.org/sdr/DXTA200701939.md): Valve · intermittent · Feb 11, 2007 · N642QS · Cessna 560XL · Aircraft Fuel Distribution System
  > AFTER CROSSFEEDING FROM LEFT OT RIGHT TANK, WHEN CROSSFEED SWITCH IS TURNED OFF ( CENTER) THE RIGHT LO FUEL PRESS ANNUNCIATOR ILLUMINATES MOMENTARILY, FOLLOWED BY A STEADY R FUEL BOOST ON ANNUNCIATOR. SWITCHING THE RT BOOST PUMP SWITCH TO ON AND BACK TO NOR
- [SDR DXTA200701891](https://openairdocs.org/sdr/DXTA200701891.md): Landing Gear · unknown · Jan 30, 2007 · N642QS · Cessna 560XL · Main Landing Gear
  > GREEN RT MLG LIGHT ILLUMINATED AFTER GEAR RETRACTION, STAYED ON FOR ABOUT 5-6 MINUTES AND THEN LIGHT WENT OUT, AIRCRAFT WAS COLD SOAKED. THE AIRCRAFT WAS COLD SOAKED THE NIGHT BEFORE. APPROACH AND LANDING RESULTED IN NO ABNORMALITES. REMOVED AND REPLACED RT
- [SDR DXTA200601498](https://openairdocs.org/sdr/DXTA200601498.md): Apu · overserviced · Jul 14, 2006 · N642QS · Cessna 560XL · APU Oil System
  > ON GROUND AT APA, WITH APU RUNNING AND BLEED AIR ON AND AVIONICS ON, SMOKE IMMEDIATLEY FILLED THE COCKPIT AND FRONT PART OF CABIN. FOUND APU OIL OVER SERVICED, DESERVICED APU AND CLEANED WATER SOCK IAW CE 560XL M/M CH 12-19-02. OPS CHECK GOOD, NO SMOKE OR SM
- [SDR DXTA200601391](https://openairdocs.org/sdr/DXTA200601391.md): Pin · disconnected · May 9, 2006 · N642QS · Cessna 560XL · Landing Gear Steering System
  > NOSE WHEEL STEERING PIN DISCONNECTED FROM STEERING ASSEMBLY ON TAKEOFF AT 70K. REMOVED AND REPLACED CUT WORN NOSE WHEEL ASSY WITH NEW SERVICEABLE WHEEL ASSY. INSPECTION THE NOSE GEAR ASSY, TORQUE LINKS, TORQUE LINK PIN, AND RETAINING CLIP. FOUND NO DEFECTS
- [SDR DXTA200601333](https://openairdocs.org/sdr/DXTA200601333.md): Fire Detector · malfunctioned · Apr 7, 2006 · N642QS · Cessna 560XL · Fire Detection
  > AT APPROX FLIGHT LEVEL 1200, LEFT ENGINE FIRELIGHT CAME ON, THROTTLE WAS REDUCED TO IDLE, LIGHT CYCLED ON/OFF. 1ST BOTTLE WAS DISCHARGED AS PER CHECKLIST, LEFT FIRE LIGHT CONTINUED TO CYCLE ON/OFF. 2ND BOTTLE WAS DISCHARGED AS PER CHECKLIST, LIGHT EXTINGUISH

## 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 = 'N642QS' AND deregistration_id = 'N642QS-2025-07-07'
ORDER BY difficulty_date DESC
```

This list as a web page: https://openairdocs.org/deregistered/N642QS-2025-07-07/reports

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