# N549QS: 2017 Textron 680A - Status: Valid registration - Airframe: [Textron 680A](https://openairdocs.org/model/textron-680a) (registry code 2076814, 10 seats) - Engine: [Pratt & Whitney Canada PW306D1](https://openairdocs.org/engine/pratt-whitney-canada-pw306d1) (registry code 51850) - Data sheets: [TCDS T00012WI](https://openairdocs.org/tcds/T00012WI) (Textron Aviation Inc.), [TCDS E35NE](https://openairdocs.org/tcds/E35NE) (Pratt & Whitney Canada Corp.) (OpenAirDocs) - Serial number: 680A0098 - Year built: 2017 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: October 9, 2017 - Certificate issued: October 26, 2022 - Expires: October 31, 2029 - Mode S code: A6FACA - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=549QS - Page: https://openairdocs.org/aircraft/N549QS From the FAA registry file of October 24, 2026. ADs below are matched by the registry's airframe and engine model codes. They may apply; each AD's applicability can narrow it by serial number, part number or installed equipment. This is not a compliance determination. ## ADs that may apply (OpenAirDocs): 3 in force ### Matched by airframe (Textron 680A) - [AD 2026-13-02](https://openairdocs.org/ad/2026-13-02): Navigation · Airbus Canada Limited Partnership 18, 49-46, 80-A and 555 more. Effective Jul 1, 2026 - [AD 2023-10-02](https://openairdocs.org/ad/2023-10-02): Indicating/Recording System, Navigation · Boeing 18, 23, 35 and 1,060 more. Effective May 26, 2023 - [AD 2018-07-13](https://openairdocs.org/ad/2018-07-13): Landing Gear · Textron 510, 680 and 680A. Effective May 15, 2018 ### Matched by engine (Pratt & Whitney Canada PW306D1) None in force. ## Information bulletins (advisory) None matched. ## NTSB investigations None matched to N549QS. ## FAA accident and incident reports None matched to N549QS. ## Service difficulty reports (17) As reported by operators and repair stations. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model. - [SDR DXTA2026052708211](https://openairdocs.org/sdr/DXTA2026052708211), May 24, 2026: UPLOCK. FAULTED. 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 WI - [SDR DXTA2026052108146](https://openairdocs.org/sdr/DXTA2026052108146), May 18, 2026: UPLOCK SWITCH. FAULTED. 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 WI - [SDR DXTA2024123001706](https://openairdocs.org/sdr/DXTA2024123001706), Dec 26, 2024: RESERVOIR. LOW. LANDING GEAR EMERGENCY HANDLE: GIA FAIL 1 AMBER CAS MESSAGE ILLUMINATED, ASSOCIATED CHECKLIST DIRECTED THE EXTENSION OF THE GEAR BLOW DOWN HANDLE PULLED, BLOW D - [SDR DXTA2024120201333](https://openairdocs.org/sdr/DXTA2024120201333), Nov 30, 2024: SIGN. INOPERATIVE. 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 - [SDR DXTA2023020279730](https://openairdocs.org/sdr/DXTA2023020279730), Feb 2, 2023: NOT ENTERED. NOT ENTERED. 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 CEN - [SDR DXTA2022071165630](https://openairdocs.org/sdr/DXTA2022071165630), Jul 10, 2022: WIRE. BROKEN. 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 - [SDR DXTA2022071165530](https://openairdocs.org/sdr/DXTA2022071165530), Jul 8, 2022: SIGN. DEFECTIVE. CABIN EMERG LIGHT: AFT LOWER EMERGENCY EXIT SIGN AT MAIN ENTRY DOOR INOP. FORWARD EXIT SIGN IS OPERATIVE. // SIGNOFF// PRELIMINARY INSPECTION VERIFIED DISCREPAN - [SDR DXTA2022031458450](https://openairdocs.org/sdr/DXTA2022031458450), Mar 13, 2022: NONE. NONE. 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 REFRIGERAT - [SDR DXTA2022010454740](https://openairdocs.org/sdr/DXTA2022010454740), Jan 3, 2022: UNKNOWN. ODOR. 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 - [SDR 2021F00307](https://openairdocs.org/sdr/2021F00307), Nov 2, 2021: SKIN. GOUGED. 8100-9 SR-680A-ATA53-22175: NDI REQUIRED FOR GOUGE IN BELLY SKIN FROM TRANSFER VALVE. - [SDR 2021FA0000308](https://openairdocs.org/sdr/2021FA0000308), Nov 2, 2021: GEARBOX. CORRODED. LH ENGINE GEARBOX AFT COVER CORRODED IN MULTIPLE LOCATIONS. - [SDR 2021FA0000205](https://openairdocs.org/sdr/2021FA0000205), Jul 9, 2021: MOUNT. CHAFED. 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 ASSEMBL - [SDR 2021FA0000204](https://openairdocs.org/sdr/2021FA0000204), Jul 9, 2021: MOUNT. CHAFED. 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 ASSEMBL - [SDR 2021FA0000203](https://openairdocs.org/sdr/2021FA0000203), Jul 9, 2021: MOUNT. CHAFED. 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 - [SDR 2020F00310](https://openairdocs.org/sdr/2020F00310), Jun 30, 2020: DOUBLER. CRACKED. 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 JUN - [SDR DXTR2018123101](https://openairdocs.org/sdr/DXTR2018123101), Dec 27, 2018: LINE. BROKEN. ON CLIMB OUT THROUGH 37000 FEET, THE YELLOW HYDRAULIC PRESS LOW RIGHT EICAS ILLUMINATED SEVERAL TIMES. SHORTLY AFTER THE HYDRAULIC VOLUME LOW EICAS MESSAGE APPE - [SDR DXTA2018122701832](https://openairdocs.org/sdr/DXTA2018122701832), Dec 26, 2018: HYDRAULIC LINE. BROKEN. 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 ## Service difficulty reports on N549QS not matched to an aircraft (5) They name N549QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR DXTA2012110705171](https://openairdocs.org/sdr/DXTA2012110705171), Nov 6, 2012: APU. ODOR. ABOUT 30 MINUTES AFTER COMPLETE SHUTDOWN, APU WAS RE-STARTED AND BLEEDS WERE PLACED TO LOW. AIRCRAFT CABIN AND FLIGHTDECK STARTED TO FILL WITH SMOKE. OPERATED A - [SDR DXTA200500734](https://openairdocs.org/sdr/DXTA200500734), May 21, 2005: WIRE. BROKEN. AFTER TAKEOFF, THE MACH TRIM YAW DAMPER AND AUTO-PILOT WOULD NOT ENGAGE ON THE FGC PANEL. REPAIRED BROKEN WIRES AT LAFGS ANNUNCIATOR TRANSFER BUTTON. CLEANED BU - [SDR DXTA200500587](https://openairdocs.org/sdr/DXTA200500587), Feb 11, 2005: QUICK DISCONNECT. CONTAMINATED. ON A ROLLING TAKEOFF NR 1 ENGINE DID NOT SPOOL UP TO FULL POWER I FIRST NOTICED A SPLIT IN N2 RPM THEN SAW N1 RPM ON NR 1 ENGINE WAS ABOUT 5 PERCENT BELOW TAKEO - [SDR DXTA200400457](https://openairdocs.org/sdr/DXTA200400457), Nov 22, 2004: ODOR. DETECTED. AFTER TWO HOURS OF FLIGHT BOTH PILOTS SMELLED STRONG ELECTRICAL / BURNED OIL FUMES WHICH IRRITATED EYES. NO VISIBLE FUMES MAIN AIR VALVES SELECTED TO LOW PRESSU - [SDR DXTA200300024](https://openairdocs.org/sdr/DXTA200300024), Apr 30, 2003: SWITCH. LACK OF LUBE. WHEN GEAR WAS SELECTED DOWN NO INTRANSIT LIGHTS OR GEARDOWN LIGHT ON FOR NOSE GEAR. INDICATOR PIN SHOWED GEAR DOWN AND LOCKED. GREEN LIGHT CAME ON ONE OR TWO MI ## STCs that may be installed (OpenAirDocs) (16) Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do. ### Approved for the airframe (Textron 680A) - [STC ST04765NY](https://openairdocs.org/stc/ST04765NY): Unprepared (Grass/Sod) Runway Operations. Textron Aviation Inc - [STC ST00885LA](https://openairdocs.org/stc/ST00885LA): Installation of fire extinguisher cartridges as replacements for Pacific Scientific fire extinguisher cartridges in fire extinguisher bottles. AMETEK AMERON, LLC d/b/a MASS Systems - [STC ST12344IB](https://openairdocs.org/stc/ST12344IB): Replacement of the Halon Type 1211 portable fire extinguisher with Halotron BrX portable fire extinguisher with Halotron BrX portable fire extinguisher. Cessna Duesseldorf Citation Service Center GmbH - [STC ST122244IB](https://openairdocs.org/stc/ST122244IB): Installation of Gogo Galileo system, including HDX Antenna. Alamo Engineering GmbH - [STC ST03885AT](https://openairdocs.org/stc/ST03885AT): Installation of an Avionica, Inc. avCM Cellular Module. Aircraft Systems and Manufacturing Inc - [STC ST11983SE](https://openairdocs.org/stc/ST11983SE): Installation of Starlink Aviation System. AeroMech Incorporated - [STC ST02472AT](https://openairdocs.org/stc/ST02472AT): Installation of a mini Quick Access Recorder (QAR) model MKI, MKII, or MKIII. Aircraft Systems and Manufacturing Inc - [STC ST01117DE](https://openairdocs.org/stc/ST01117DE): Installation of the Gogo ATG C1. Peregrine - [STC ST02037WI](https://openairdocs.org/stc/ST02037WI): Installation of Gogo Business Aviation AVANCE L5 System with MB 13 Antennas. Duncan Aviation Inc - [STC ST04736NY](https://openairdocs.org/stc/ST04736NY): True Blue TS28 Emergency Battery Power Supply Replacement. Aerospace Design and Compliance LLC - [STC ST01936WI](https://openairdocs.org/stc/ST01936WI): Installation of LED lights. AeroLED's Holdings LLC - [STC ST04575AT](https://openairdocs.org/stc/ST04575AT): Installation of the Rockwell Collins ALT-1000+/ -4000+ with 5G Filtering. Chippewa Aerospace Inc - [STC ST04367CH](https://openairdocs.org/stc/ST04367CH): Installation of a Medical Interior in accordance with LifePort Master Data List EGR-887-000-001, Revision (B), dated April 18, 2019 or later FAA approved revision and LifePort Master Drawing List MDL-887-00, Revision (D), dated April 11, 2019 or later FAA approved revision.". LifePort LLC - [STC ST01027DE](https://openairdocs.org/stc/ST01027DE): Installation of MarathonNorco Aerospace Inc Nickel Cadmium battery in place of existing Nickel Cadmium main aircraft battery/batteries. MarathonNorco Aerospace Inc - [STC ST11071SC](https://openairdocs.org/stc/ST11071SC): Demonstration of aircraft critical equipment and antenna systems tolerance of radio frequency interference (RFI) from intentional or spurious transmissions from certain Portable Electronic Devices (PEDs). Liberty Partners Inc - [STC ST11168SC](https://openairdocs.org/stc/ST11168SC): Installation of a Pratt & Whitney Flight Data Acquisition, Storage, and Transmission System (FAST). Pratt & Whitney Engine Services Inc ## Related - Other Textron 680A aircraft: https://openairdocs.org/model/textron-680a/aircraft.md - The Pratt & Whitney Canada PW306D1 engine: https://openairdocs.org/engine/pratt-whitney-canada-pw306d1.md --- 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.