# N539QS: 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: 680A0082 - Year built: 2017 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: May 27, 2017 - Certificate issued: April 4, 2023 - Expires: April 30, 2030 - Mode S code: A6D34B - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=539QS - Page: https://openairdocs.org/aircraft/N539QS 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 N539QS. ## FAA accident and incident reports None matched to N539QS. ## Service difficulty reports (13) 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 DXTA2026092809874](https://openairdocs.org/sdr/DXTA2026092809874), Sep 25, 2026: ELEC CONNECTOR. DISCONNECTED. EXIT LIGHT NOT WORKING. FOUND FWD EXIT INDICATOR AT MAIN DOOR TO NOT BE WORKING. REMOVED FWD EXIT INDICATOR AND FOUND CONNECTOR TO BE BAGED AND NOT CONNECTED. R - [SDR DXTA2026092209796](https://openairdocs.org/sdr/DXTA2026092209796), Sep 19, 2026: ELEC CONNECTOR. LOOSE. RIGHT OVERWING EMERGENCY EXIT LIGHTS WERE INOPERATIVE DURING EMERGENCY LIGHTS PREFLIGHT INSPECTION. QRH CHARGING PROCEDURE ACCOMPLISHED WITH NO POSITIVE RESULT. - [SDR DXTA2026092209795](https://openairdocs.org/sdr/DXTA2026092209795), Sep 19, 2026: BATTERY. DISCHARGED. SEAT 6 AND 7 FLOOR LIGHTS AS WELL AS SEAT 7OVERHEAD READING LIGHT WERE INOPERATIVE DURING EMERGENCY LIGHTS PREFLIGHT INSPECTION. QRH CHARGING PROCEDURE ACCOMPLI - [SDR DXTA2025110705605](https://openairdocs.org/sdr/DXTA2025110705605), Nov 6, 2025: BATTERY PACK. FAILED. WITH THE EMERGENCY LIGHT SWITCH IN ARM OR ON, THE RT WING INSECTION LIGHT, THE LT AND RT EXIT SIGNS AT THE BASE OF THE MAIN CABIN DOOR FAIL TO ILLUMINATE. REPLA - [SDR DXTA2025012702089](https://openairdocs.org/sdr/DXTA2025012702089), Jan 23, 2025: DETECTION SYS. FALSE INDICATION. AFTER LANDING BY MOVING THE APU SWITCH IN THE ON POSITION WE RECEIVED A APU FIRE WARNING MOMENTARILY. APU WAS NOT STARTED. AIRCRAFT WAS STOPPED ON TAXI WAY AND - [SDR DXTA2025011401892](https://openairdocs.org/sdr/DXTA2025011401892), Jan 8, 2025: FIRE BOTTLE. DEFECTIVE. UNSCHEDULED MAINTENANCE: RED BAGGAGE FIRE WARNING AT FL 430. DECLARED EMERGENCY AND RAN QRH. BLEW BOTH BOTTLES AND RED BAGGAGE FIRE INDICATION STAYED ON FOR ABO - [SDR DXTA2023101197740](https://openairdocs.org/sdr/DXTA2023101197740), Oct 11, 2023: UNKNOWN. UNKNOWN. MAIN DOOR HANDLE WILL NOT LOCK WHEN IN CLOSED DOWN POSITION. DOOR OPEN LIGHTS AND CAS MESSAGE REMAIN ILLUMINATED WITH HANDLE DOWN. ALL 6 DOOR PINS ACTUATE AND A - [SDR DXTA2023071090680](https://openairdocs.org/sdr/DXTA2023071090680), Jul 8, 2023: UNKNOWN. UNKNOWN. MAIN DOOR: WHILE ON THE GROUND AND THE MAIN CABIN DOOR HANDLE IS IN THE CLOSED AND LOCKED POSITION, THE AMBER CHECK DOORS CAS MESSAGE IS ILLUMINATED. AN AMBER C - [SDR DXTA2022061063660](https://openairdocs.org/sdr/DXTA2022061063660), Jun 10, 2022: BATTERY. DEFECTIVE. EMERGENCY LIGHTING: DURING THE EMER LIGHTS TEST (BATT OFF W/EMET LTS SW ARM), THE AFT EMER LIGHTS ARE INOP. THE FWD EMER LTS ARE OPERATIVE. // SIGNOFF// REMOVED - [SDR 2022F00125](https://openairdocs.org/sdr/2022F00125), Mar 15, 2022: NONE. NICKED. EVALUATE CHIPPED CHROME ON RH OB MLG AXLE. - [SDR 2022F00124](https://openairdocs.org/sdr/2022F00124), Mar 15, 2022: ENGINE. SHEARED. LH ENGINE BORESCOPE PLUG BOLT HEAD TWISTED OFF IN ENGINE. - [SDR DXTA2021110251320](https://openairdocs.org/sdr/DXTA2021110251320), Nov 2, 2021: TUBE. SHEARED. MAIN HYDRAULICS: IN FLIGHT HYD PRESS LOW R ILLUMINATED. ACCOMPLISHED QRC AND DIVERTED. 10 MINUTES LATER HYD VOLUME LOW ILLUMINATED. QRC COMPLETED. UTILIZED EMER - [SDR 2021FA0000117](https://openairdocs.org/sdr/2021FA0000117), Apr 28, 2021: SKIN. DELAMINATED. VERTICAL LEADING EDGE DELAMINATED REF ENGINEERING LETTER DQ29702M1REVA ## Service difficulty reports on N539QS not matched to an aircraft (1) They name N539QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR 95ZZZX755](https://openairdocs.org/sdr/95ZZZX755), Jan 9, 1995: LINE. BURNED. APU FUEL FEED LINE FOUND BURNED ON INSPECTION. OUTSIDE FUEL SLEEVEING HAD A HOLE BURNED THROUGH. FIRE RETARDANT SLEEVE HAD A HOLE BURNED INTO THE RED RUBBER COV ## 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.