# Service difficulty reports: N556QS, cancelled Feb 19, 2026 A list on [N556QS, cancelled Feb 19, 2026](https://openairdocs.org/deregistered/N556QS-2026-02-19.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR DXTA2025090804828](https://openairdocs.org/sdr/DXTA2025090804828.md): Battery · defective · Sep 4, 2025 · N556QS · Cessna 560XL · Emergency Lighting > WITH BATTERY IN THE OFF POSITION AND EMERGENCY LIGHTS SWITCHED ON, THERE IS NO ILLUMINATION OF THE THREE EMERGENCY EXIT SIGNS SURROUNDING THE MAIN CABIN DOOR. CORRECTIVE ACTION: REMOVED THE FWD EMERGENCY BATTEY PACK AND INSTALLED THE OVERHAULED UNIT IAW CE560X - [SDR DXTA2025051903508](https://openairdocs.org/sdr/DXTA2025051903508.md): Seal · leaking · May 15, 2025 · N556QS · Cessna 560XL · Engine Bleed Air System > RIGHT ENG FIRE DETECTION LIGHT: CLIMBING OUT OF 11,000 FEET, GOT A RT ENG FIRE INDICATION. FLYING PILOT REDUCED THROTTLE TO APPROX 80 PERCENT AND LIGHT EXTINGUISHED APPROX 10 SECS LATER. RAN QRC & DIVERTED. ENG INDICATIONS WERE NORMAL THROUGHOUT. REMOVED L - [SDR DXTA2025021702365](https://openairdocs.org/sdr/DXTA2025021702365.md): Seal · slow · Feb 13, 2025 · N556QS · Cessna 560XL · Passenger/Crew Doors > MAIN DOOR ACOUSTIC SEAL: ACOUSTIC SEAL SLOW TO DEFLATE WITH CONSIDERABLE FORCE TO OPEN. NON-NORMAL OPERATION. - [SDR DXTA2024111501131](https://openairdocs.org/sdr/DXTA2024111501131.md): Condesor · dirty · Nov 13, 2024 · N556QS · Cessna 560XL · Humidity Control System > SMOKE IN THE CABIN DURING APU RUN CORRECTIVE ACTION; DISSASEMBLED THE WATER SEPARATOR AND CLEANED THE CONDESER. REMOVED THE OLD CONDENSER BAG DUE TO SMOKE IN THE CABIN P/N 83237-12 NSN AND INSTALLED CUSTOMER SUPPLIED NEW CONDENSER BAG P/N 83237-12 NSN. REASSEM - [SDR DXTA2024100700726](https://openairdocs.org/sdr/DXTA2024100700726.md): Indication Sys · odor · Oct 1, 2024 · N556QS · Cessna 560XL · Engine Indicating System > LH AMLCD WENT BLANK AT FL400. WITHIN ABOUT A MINUTE THERE WAS AN ELECTRICAL BURNING SMELL. NO SMOKE WAS VISIBLE. DIVERTED TO DAL. REMOVED FAILED AMLCD ENGINE INDICATING SYSTEM P/N 9912574-5 S/N02060144AB AND INSTALLED OVERHAULED CUSTOMER SUPPLIED AMLCD ENGIN - [SDR DXTA2024082200295](https://openairdocs.org/sdr/DXTA2024082200295.md): Oil System · overserviced · Aug 20, 2024 · N556QS · Cessna 560XL · APU Oil System > MUSTY AND OILY ODOR IN AC SYSTEM DURING ENTIRE FLIGHT WITH OCCASIONAL FLUCTS IN AIR FLOW CORRECTIVE ACTION: DESERVICED THE APU TO THE PROPER LEVEL AND REMOVED AND REPLACED THE COALESCER SOCK. PERFORMED MULTIPLE OPERATIONAL CHECKS AND LEAK CHECKS OF THE APU AND - [SDR DXTA2023092095940](https://openairdocs.org/sdr/DXTA2023092095940.md): Unknown · unknown · Sep 19, 2023 · N556QS · Cessna 560XL · Elevator Control System > ON TAKEOFF THE ACFT PITCHED NOSE UP. REDUCED POWER & MANUALLY TRIMMED NOSE FWD TO FULL NOSE DOWN. APPROX TRIMMED CORRECTLY, FLAPS 15 & 160 KNOTS. BEFORE STARTING TAKEOFF ROLL ALL ANNUNCIATORS EXTINGUISHED. NO TAKEOFF ANNUNCIATION ILLUMINATED. AFTER LANDING, - [SDR DXTA2022122276890](https://openairdocs.org/sdr/DXTA2022122276890.md): Uplock Switch · out of rig · Dec 22, 2022 · N556QS · Cessna 560XL · Landing Gear Position and Warning > UPON RAISING GEAR HANDLE, RED UNLOCK LIGHT ILLUMINATED & REMAINED ON FOR DURATION OF FLIGHT, UNTIL LANDING GEAR HANDLE CYCLED DOWN FOR LANDING. WENT OUT WHEN GEAR HANDLE WAS CYCLED TO DOWN PRIOR TO LANDING. UNABLE TO DETERMINE IF UNLOCK LIGHT REFERRED TO NOSE - [SDR DXTA2022111674040](https://openairdocs.org/sdr/DXTA2022111674040.md): Handle · lack of lube · Nov 15, 2022 · N556QS · Cessna 560XL · Passenger/Crew Doors > MAIN DOOR: PREVIOUS WRITE UP. MAIN ENTRY DOOR VENT DOOR AND DOOR HANDLE LIGHTS ILLUMINATED ON SIX PACK. THE TWO MIDDLE LIGHTS OF THE SIX PACK LIGHTS. IN ADDITION CABIN DOOR ANNUNCIATOR IS ILLUMINATED. CYCLED MULTIPLE TIMES UNSUCCESSFULLY // SIGNOFF// REMOVED S - [SDR DXTA2022071866230](https://openairdocs.org/sdr/DXTA2022071866230.md): Bulb · burned out · Jul 17, 2022 · N556QS · Cessna 560XL · Emergency Lighting > CABIN EMERG LIGHT: CABIN READING LIGHT OVER SEAT 10 IS INOP. IT IS ONE OF THE REQUIRED EMER LIGHTS *** CORRECTIVE ACTION *** REMOVED AND REPLACED LAMP AT SEAT 10, OPS CHECKS GOOD, ALL WORK DONE I.A.W. CE-560XLS AMM CH 33-50-00. - [SDR DXTA2022051962090](https://openairdocs.org/sdr/DXTA2022051962090.md): Diode · defective · May 18, 2022 · N556QS · Cessna 560XL · Light System Wiring > EMERG EXIT SIGN/LIGHT: FORWARD EMERGENCY EXIT LIGHTS INOP. FORWARD EMERGENCY LIGHTING BATTERY PACK DEPLETED. REMOVED DAMAGED AMBER EMERGENCY LIGHT "NOT ARMED" LIGHT & REPLACED WITH A NEW LIGHT & LAMP IAW SPM 20-30-30. REMOVED FAILED DIODE DI051 & REPLACED WI - [SDR DXTA2022030357830](https://openairdocs.org/sdr/DXTA2022030357830.md): Cable · abnormal · Mar 3, 2022 · N556QS · Gulstm 560 · Doors > MAIN DOOR CABLE: OPENED MAIN CABIN DOOR FROM OUTSIDE. HEARD A TWANG, AND DISCOVERED HALF THE STRANDS ON THE FORWARD DOOR CABLE BROKEN, WITH LOOSE ENDS EXTENDING INTO STAIRWAY. // SIGNOFF// REMOVED AND REPLACED WITH A NEW PART THE FORWARD MED COUNTERBALANCE CAB - [SDR DXTA2021122754260](https://openairdocs.org/sdr/DXTA2021122754260.md): None · defective · Dec 26, 2021 · N556QS · Gulstm 560 · Emergency Lighting > MAIN EXIT SIGN/LIGHT: FWD EMERGENCY LIGHTING SYSTEM IS INOPERATIVE. // SIGNOFF// REMOVED AND REPLACED FAULTY FWD EMERGENCY LIGHTING BATTERY PACK IAW CE560XL MM 33-50-01 FAILED OPS CHECK - [SDR DXTA2021082747800](https://openairdocs.org/sdr/DXTA2021082747800.md): Precatch · lack of lube · Aug 26, 2021 · N556QS · Cessna 560XL · Passenger/Crew Doors > MAIN DOOR PRECATCH: PRECATCH HOLDS DOOR SHUT BUT PULLING HANDLE TO OPEN DOES NOT WORK. *** CORRECTIVE ACTION *** PRECATCH CLEAN AND LUBED, OPS CHECK GOOD. ALL WORK DONE IAW CE-560XLS SMM CHAPTER 52-10-01. - [SDR DXTA2021082347310](https://openairdocs.org/sdr/DXTA2021082347310.md): Bayonet · lack of lube · Aug 20, 2021 · N556QS · Cessna 560XL · Passenger/Crew Doors > MAIN DOOR: MAIN CABIN DOOR HANDLE DIFFICULT TO OPERATE. ESPECIALLY FROM THE INSIDE WHEN OPENING THE DOOR. CLEANED AND LUBRICATED THE BAYONETS. ADJUSTED LATCH PLATES. OPS CHECKED THE MED WITH NO DEFECTS NOTED AT THIS TIME. WORK DONE IN REF TO CE-560XL AMM 52- - [SDR DXTA2018112601706](https://openairdocs.org/sdr/DXTA2018112601706.md): Display · odor · Nov 23, 2018 · N556QS · Cessna 560XL · Attitude and Direction Data System > BURNING SMELL IN COCKPIT SECOND DAY IN A ROW. W/O T2PL6D006BYNF PERTAINS. THEN MFD WENT BLANK AT 1+50 OF 3.0 FLIGHT. BURNING SMELL CEASED WITH MFD FAILURE. SUPPLEMENTAL INFORMATION: REMOVED & REPLACED MFD..P/N OFF: 7023460-05001 / S/N OFF: 06022851 - P/N - [SDR JGVR20180126003](https://openairdocs.org/sdr/JGVR20180126003.md): Trunnion · corroded · Jan 26, 2018 · N556QS · Cessna 560XL · Fuselage, Landing Gear Attach Fittings > RIGHT MLG TRUNNION OTBD LUG HAS CORROSION AND MATERIAL LOSS AROUND TRAILING LINK TO TRUNNION PIN, BLENDED THE AREA. FOUND BLENDED AREA TO BE MORE THEN ALLOWABLE LIMITS. REMOVED AND REPLACED THE TRUNNION IAW CMM 32-10-01, AND MM 32-10-00. - [SDR JGVR20180126002](https://openairdocs.org/sdr/JGVR20180126002.md): Axle · corroded · Jan 26, 2018 · N556QS · Cessna 560XL · Main Landing Gear Strut/Axle/Truck > LEFT MLG AXLE HAS CORROSION THAT IS BEYOND SRM LIMITS. REMOVED AND REPLACED THE AXLE. - [SDR JGVR20180126001](https://openairdocs.org/sdr/JGVR20180126001.md): Axle · corroded · Jan 26, 2018 · N556QS · Cessna 560XL · Main Landing Gear Strut/Axle/Truck > RIGHT MLG AXLE HAS CORROSION THAT IS BEYOND SRM LIMITS. REMOVED AND REPLACED THE AXLE. - [SDR JGVR20180125002](https://openairdocs.org/sdr/JGVR20180125002.md): Axle · corroded · Jan 25, 2018 · N556QS · Cessna 560XL · Nose/Tail Landing Gear Strut/Axle > NLG AXLE TUBE IS CORRODED. FOUND DURING NJA TASK CARD TC-5XL-32-160207. REMOVED EXISTING CORRODED NLG AXLE TUBE AND INSTALLED NEW CUSTOMER SUPPLIED NEW AXLE TUBE IN THE SAME LOCATION IAW MM 32-41-01. - [SDR JGVR20180125001](https://openairdocs.org/sdr/JGVR20180125001.md): Spar · corroded · Jan 25, 2018 · N556QS · Cessna 560XL · Horizontal Stabilizer, Spar/Rib > LEFT HORIZONTAL STAB AFT SPAR CORRODED. BLENDED THE CORROSION IAW SRM 51-70-08. REMOVED LH AND RH ELEVATORS FOR ACCESS TO HORIZONTAL STABILIZER AFT SPAR CORROSION AND REINSTALLED IAW CESSNA 560XL MM 27-31-01. PERFORMED AN EDDY CURRENT INSPECTION ON LH AND RH - [SDR DXTA2016012306168](https://openairdocs.org/sdr/DXTA2016012306168.md): Fan · failed · Jan 24, 2016 · N556QS · Cessna 560XL · Aerodynamic Fairings > WHILE SITTING IN COCKPIT PRIOR TO ENGINE START, HEARD AN AUDIBLE POP WITH SIMULTANEOUS INDICATIONS OF THE RADOME FAN CAUTION LIGHT, FLASHING MASTER CAUTION, BOTH PFDS, MFD & FMS WENT BLANK BUT WERE BACK LIT. 45 SECONDS LATER A LOUD BUZZING NOISE CAME ACROSS - [SDR DXTA2015111306132](https://openairdocs.org/sdr/DXTA2015111306132.md): Uplock Switch · out of adjust · Nov 24, 2015 · N556QS · Cessna 560XL · Landing Gear Position and Warning > NOSE GEAR DID NOT COME UP. RED UNLOCK LIGHT ILLUMINATED. GEAR HANDLE WAS PLACED DOWN PRODUCING 3 GREEN LIGHTS. INSPECTED LG SYS FOR VISIBLE DEFECT, NONE NOTED. JACKED ACFT & PERFORMED SEVERAL GEAR SWINGS AT VARIOUS PRESS SETTINGS & SLOW RATES, NO DEFECTS N ## 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 = 'N556QS' AND deregistration_id = 'N556QS-2026-02-19' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/deregistered/N556QS-2026-02-19/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, except the copies of manufacturers’ service documents, which belong to their rights holders.