# Service difficulty reports: N549QS A list on [N549QS](https://openairdocs.org/aircraft/N549QS.md). Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. Newest first. - [SDR DXTA2026052708211](https://openairdocs.org/sdr/DXTA2026052708211.md): Uplock · faulted · May 24, 2026 · N549QS · Cessna 680A · Landing Gear Retraction/Extension System > AFTER TO GOT GEAR DISAGREE N. SOUNDED LIKE GEAR WAS UP BUT COUPLE MINUTES LATER HEARD A BANG IN THE NOSE GEAR WELL AND NOSE GEAR INDICATED UP. GEAR WENT DOWN WITH NO ISSUES REMOVED NOSE GEAR UPLOCK SWITCH P/N: S3177-1 S/N: NSN. -INSTALLEDSUPPLIED NEW SWITCH - [SDR DXTA2026052108146](https://openairdocs.org/sdr/DXTA2026052108146.md): Uplock Switch · faulted · May 18, 2026 · N549QS · Cessna 680A · Landing Gear Position and Warning > AFTER TAKEOFF AND GEAR UP SELECTED WE RECEIVED GEAR DISAGREE N CAS MSG. BASED ON NOISE LEVEL WE BELIEVE THE GEAR WAS UP. RAN CHECKLIST INCLUDING LANDING GEAR WILL NOT RETRACT WITH (BLACK AND YELLOW BOX WITH SLASHED LINES). GOT THE GEAR DOWN SUCCESSFULLY WITH - [SDR DXTA2024123001706](https://openairdocs.org/sdr/DXTA2024123001706.md): Reservoir · low · Dec 26, 2024 · N549QS · Cessna 680A · Hydraulic System, Main > LANDING GEAR EMERGENCY HANDLE: GIA FAIL 1 AMBER CAS MESSAGE ILLUMINATED, ASSOCIATED CHECKLIST DIRECTED THE EXTENSION OF THE GEAR BLOW DOWN HANDLE PULLED, BLOW DOWN HANDLE WAS PULLED PER CHECKLIST SERVICED GEAR BLOW DOWN BOTTLE. SERVICED HYDRAULIC RESERVOIR. - [SDR DXTA2024120201333](https://openairdocs.org/sdr/DXTA2024120201333.md): Sign · inoperative · Nov 30, 2024 · N549QS · Cessna 680A · Emergency Lighting > EMERG EXIT SIGN/LIGHT: DURING THE AIRCRAFT PREFLIGHT IT WAS OBSERVED THAT THE EMERGENCY EXIT SIGN BELOW THE LAVATORY SEAT WAS NOT WORKING. IT WAS TESTED DURING THE POWER ON CHECKLIST. ADDITIONALLY, WE TURNED ON THE EMERGENCY LIGHTS TO SEE IF IT WOULD ILLUMINAT - [SDR DXTA2023020279730](https://openairdocs.org/sdr/DXTA2023020279730.md): Not Entered · not entered · Feb 2, 2023 · N549QS · Cessna 680A · Passenger/Crew Doors > MAIN DOOR: MIDDLE AFT LOCKING PIN IS OUT OF TRACK AND DOOR WILL NOT CLOSE // SIGNOFF// REMOVED MED PANELS AND STEPS TO GAIN ACCESS TO LOCKING PIN, FOUND AFT CENTER LOCKING PIN TO HAVE COME OFF PIN GUIDE, REMOVED PIN AND INSPECTED FOR BENT DAMAGE WITH NO DEFECT - [SDR DXTA2022071165630](https://openairdocs.org/sdr/DXTA2022071165630.md): Wire · broken · Jul 10, 2022 · N549QS · Cessna 680A · Door System Wiring > EMERG EXIT SIGN/LIGHT: AFT LOWER EMERGENCY EXIT SIGN AT MAIN ENTRY DOOR INOP. REPEAT WRITE UP. // SIGNOFF// PULIMINARY INSPECTION FOUND ACT LOWER EMERGENCY EXIT SIGNS WORKING INTERMITTENT DUE TO WIRING ISSUE. REMOVED DIVIDER AND SIDE PANEL TO INSPECT WIRES. FO - [SDR DXTA2022071165530](https://openairdocs.org/sdr/DXTA2022071165530.md): Sign · defective · Jul 8, 2022 · N549QS · Cessna 680A · Emergency Lighting > CABIN EMERG LIGHT: AFT LOWER EMERGENCY EXIT SIGN AT MAIN ENTRY DOOR INOP. FORWARD EXIT SIGN IS OPERATIVE. // SIGNOFF// PRELIMINARY INSPECTION VERIFIED DISCREPANCY. TROUBLE SHOOT ISSUE TO EXIT SIGN LED BURNS. REMOVED AND REPLACED EMERGENCY EXIT SIGN IAW CE680A - [SDR DXTA2022031458450](https://openairdocs.org/sdr/DXTA2022031458450.md): None · none · Mar 13, 2022 · N549QS · Cessna 680A · Airborne Auxiliary Power Unit (APU) System > APU SMOKE: ON STARTING THE APU AFTER TURNING THE APU BLEED AIR TO ON. CABIN AND COCKPIT FILLED WITH HEAVY SMOKE. "CORRECTIVE ACTION" GAINED ACCESS TO REFRIGERATION MODULE TURBINE AND CHECKED FOR ANY OIL RESIDUE OR SMELL. NONE NOTED. RECONNECTED DUCTS REMOVED - [SDR DXTA2022010454740](https://openairdocs.org/sdr/DXTA2022010454740.md): Unknown · odor · Jan 3, 2022 · N549QS · Cessna 680A · Air Distribution System > AFTER LANDING, STARTED APU DURING TAXI IN. ENGINE BLEEDS STILL ON & APU BLEED AIR OFF. NOTICED A FAINT SMOKE ODOR & SHORTLY AFTER, AN AMBER CAS MESSAGE FOR ACM OVERTEMP. RAN CHECKLIST & AFTER SHUTTING ENGINES OFF & NEVER APPLYING APU BLEED AIR, AMBER CAS MESS - [SDR 2021F00307](https://openairdocs.org/sdr/2021F00307.md): Skin · gouged · Nov 2, 2021 · N549QS · Cessna 680A · Fuselage Main, Plate/Skin > 8100-9 SR-680A-ATA53-22175: NDI REQUIRED FOR GOUGE IN BELLY SKIN FROM TRANSFER VALVE. - [SDR 2021FA0000308](https://openairdocs.org/sdr/2021FA0000308.md): Gearbox · corroded · Nov 2, 2021 · N549QS · Cessna 680A · Accessory Gearboxes > LH ENGINE GEARBOX AFT COVER CORRODED IN MULTIPLE LOCATIONS. - [SDR 2021FA0000205](https://openairdocs.org/sdr/2021FA0000205.md): Mount · chafed · Jul 9, 2021 · N549QS · Cessna 680A · Engine Mount Section > RH ENGINE FWD MOUNT (PN: 6951500-6) BOTH UPPER AND LOWER ENGINE MOUNT BOLT HOLES AND MOUNT ARMS WERE CHAFFED DURING ENGINE REMOVAL. 6951505-20 FWD MOUNT ASSEMBLY AFT SIDE. - [SDR 2021FA0000204](https://openairdocs.org/sdr/2021FA0000204.md): Mount · chafed · Jul 9, 2021 · N549QS · Cessna 680A · Engine Mount Section > RH ENGINE FWD MOUNT (PN: 6951500-6) BOTH UPPER AND LOWER ENGINE MOUNT BOLT HOLES AND MOUNT ARMS WERE CHAFFED DURING ENGINE REMOVAL. 6951505-20 FWD MOUNT ASSEMBLY AFT SIDE. - [SDR 2021FA0000203](https://openairdocs.org/sdr/2021FA0000203.md): Mount · chafed · Jul 9, 2021 · N549QS · Cessna 680A · Engine Mount Section > RH ENGINE FWD MOUNT (PN: 6951500-6) BOTH UPPER AND LOWER ENGINE MOUNT BOLT HOLES AND MOUNT ARMS WERE CHAFFED DURING ENGINE REMOVAL.6951505-22 FWD MOUNT ASSEMBLY FORWARD SIDE. - [SDR 2020F00310](https://openairdocs.org/sdr/2020F00310.md): Doubler · cracked · Jun 30, 2020 · N549QS · Cessna 680A · Fuselage Main, Structure > CRACK DAMAGE, NOSE LANDING GEAR WHEEL WELL (NWW), FRAME, WEB, AND DOUBLERS, FS 75. ACCOMPLISHED TEXTRON AVIATION FIELD REPAIR SR-680A-ATA53-25890 REV- DATED JUNE 1, 2020 AND 8100-9 DATED 6/1/2020; STANDARD REPAIR - CRACK DAMAGE, NOSE LANDING GEAR WHEEL WELL (N - [SDR DXTR2018123101](https://openairdocs.org/sdr/DXTR2018123101.md): Line · broken · Dec 27, 2018 · N549QS · Cessna 680A · Hydraulic Indicating System > ON CLIMB OUT THROUGH 37000 FEET, THE YELLOW HYDRAULIC PRESS LOW RIGHT EICAS ILLUMINATED SEVERAL TIMES. SHORTLY AFTER THE HYDRAULIC VOLUME LOW EICAS MESSAGE APPEARED. EMERGENCY DECLARED AND AIRCRAFT DIVERTED TO KCMH. MAINTENANCE TECHS FOUND RIGHT ENGINE HYDRAUL - [SDR DXTA2018122701832](https://openairdocs.org/sdr/DXTA2018122701832.md): Hydraulic Line · broken · Dec 26, 2018 · N549QS · Cessna 680A · Hydraulic System, Main > ON CLIMB OUT THROUGH 37000 FEET YELLOW HYD PRESS LOW RIGHT ICAS ILLUMINATED SEVERAL TIMES. SHORTLY AFTER THE HYD VOLUME LOW EICAS MESSAGE APPEARED. APPROPRIATE CHECKLISTS WERE COMPLETED. ***SUPPLEMENTAL INFORMATION: INSTALLED A NEW RT ENGINE HYDRAULIC PUMP PR ## 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 = 'N549QS' AND registry_match = 'registration' ORDER BY difficulty_date DESC ``` This list as a web page: https://openairdocs.org/aircraft/N549QS/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.