# N543QS: 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: 680A0092 - Year built: 2017 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: July 24, 2017 - Certificate issued: December 24, 2025 - Expires: December 31, 2032 - Mode S code: A6E480 - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=543QS - Page: https://openairdocs.org/aircraft/N543QS 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 N543QS. ## FAA accident and incident reports None matched to N543QS. ## Service difficulty reports (15) 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 DXTA2025071604254](https://openairdocs.org/sdr/DXTA2025071604254), Jul 14, 2025: WINDOW FRAME. CRACKED. THERE APPEARS TO BE A CRACK IN THE LOWER PORTION OF THE AFT EMERGENCY EXIT HATCH WINDOW. AFTER INSPECTION FOUND OUTER FROST PAIN TO BE SCRATCHED. REMOVED PANE A - [SDR DXTA2025050803411](https://openairdocs.org/sdr/DXTA2025050803411), May 8, 2025: FLAP SYSTEM. FAULTED. FLAPS FAIL AMBER CAS: ON DEPARTURE DURING FLAP RETRACTION. AMBER FLAPS FAIL CAS MESSAGE ILLUMINATED, ALONG WITH THE FLAP RESET BUTTON AND AN AMBER FLAP INDICATO - [SDR DXTA2024092500641](https://openairdocs.org/sdr/DXTA2024092500641), Sep 22, 2024: PCB. FAULTED. UPON ARRIVAL AT DESTINATION THE DOOR WOULD NOT OPEN. (THE RED RELEASE BUTTON WOULD NOT RELEASE) CALLED MX AND WAS ADVISED TO POWER DOWN THE AIRCRAFT. DOOR OPENE - [SDR DXTA2023100296990](https://openairdocs.org/sdr/DXTA2023100296990), Oct 2, 2023: UNKNOWN. UNKNOWN. RIGHT MLG BRAKE: WHEN TAXIING THE ACFT AND EITHER PILOT APPLIES RIGHT BRAKE, THERE IS A NOTICEABLE GROWLING SOUND. ALSO, WHEN APPLYING THE BRAKES WHEN COMING TO - [SDR DXTA2023092296110](https://openairdocs.org/sdr/DXTA2023092296110), Sep 21, 2023: BATTERY. INOPERATIVE. CABIN EMERG LIGHT: WHEN TESTING THE EMERGENCY LIGHTS, THE FLOOR LIGHTING UNDER SEATS 5 AND 8 IS INOP, AS WELL AS THE READING LIGHT OVER SEAT 7. VERIFIED DISCREP - [SDR DXTA2023091495360](https://openairdocs.org/sdr/DXTA2023091495360), Sep 13, 2023: UNKNOWN. UNKNOWN. FLOOR EMERG EXIT LIGHT: EMERGENCY TOEKICK LIGHTS AT SEATS 5 AND 8 ARE INOP. CHARGED THE EMERGENCY BATTERIES FOR 2HRS AND PERFORMED AN OPERATIONAL CHECK OF THE L - [SDR DXTA2022042861050](https://openairdocs.org/sdr/DXTA2022042861050), Apr 27, 2022: SWITCH. DEFECTIVE. CABIN EMERG LIGHT: MED AND SEAT 10 EMER LIGHTS WILL NOT EXTINGUISH. ROUBLESHOOT CABIN EMERG LIGHT ISSUE TO COCKPIT INERTIAL SWITCH WEAK. REMOVED AND REPLACED CO - [SDR DXTA2021111151670](https://openairdocs.org/sdr/DXTA2021111151670), Nov 10, 2021: BATTERY. DEFECTIVE. MAIN EXIT SIGN/LIGHT: IN FLIGHT NOTICED MAIN CABIN DOOR EXIT SIGN ILLUMINATED WITH PAX SAFETY SWITCH OFF. AFTER LANDING AND SHUTDOWN MAIN CABIN DOOR EXIT LIGHT - [SDR DXTA2021102751020](https://openairdocs.org/sdr/DXTA2021102751020), Oct 26, 2021: NONE. NONE. CABIN EMERG LIGHT: WITH NO POWER ON AIRCRAFT, FORWARD CABIN EMERGENCY LIGHTS ARE ON. PHOTO ATTACHED. // SIGNOFF // RECYCLED EMERGENCY LIGHT SWITCH WITH NO HELP - [SDR 2021F00129](https://openairdocs.org/sdr/2021F00129), May 24, 2021: BRACE. GOUGED. GOUGES IN LH AND RH MLG SIDE BRACES. TEXTRON AVIATION ENGINEERING REPAIR LETTER DQ 30053M1 DATED: 05/21/2021, 680A-0092 (N543QS) LEFT AND RIGHT MAIN LANDING SID - [SDR 2021F00126](https://openairdocs.org/sdr/2021F00126), May 24, 2021: SKIN. DENTED. LH WING LEADING EDGE DENT. MANUFACTURER ENGINEERING REPAIR LETTER DQ30055M1 DATED: 05/20/2021, 680A-0092 (N543QS) WING (LEFT) LEADING EDGE DENT. - [SDR DXTA2021032539960](https://openairdocs.org/sdr/DXTA2021032539960), Mar 24, 2021: PCB. DEFECTIVE. 1) WOW MISCOMPARE AMBER CAS: RECEIVED MESSAGE WHILE CLIMBING ABOVE FL 300. MESSAGE STAYED ON FOR REMAINDER OF FLIGHT AND AFTER LANDING. 2) GEAR POSITION & WARNI - [SDR DXTA2021011804600](https://openairdocs.org/sdr/DXTA2021011804600), Jan 15, 2021: ACTUATOR. DEFECTIVE. DURING CRUISE FLIGHT AT FL430 THE GIA FAIL 2 MESSAGE ILLUMINATED. ALONG WITH THIS MESSAGE THE ENGINE CNTRL FAULT L-R ILLUMINATED AS WELL. AFTER COMPLETION OF CH - [SDR DXTA2020090908040](https://openairdocs.org/sdr/DXTA2020090908040), Sep 8, 2020: WIRE HARNESS. DEFECTIVE. LANDING GEAR HANDLE REMAINED LOCKED WHILE ATTEMPTING GEAR RETRACTION AFTER TAKEOFF. AMBER "WOW MISCOMPARE" ILLUMINATED SHORTLY AFTER RETRACTION ATTEMPT AND REMA - [SDR DXTR2020011301](https://openairdocs.org/sdr/DXTR2020011301), Jan 13, 2020: SKIN PANEL. CHAFED. WIMG ANTI-ICE VALVE UPPER STUDS CHAFING FUSELAGE, REPAIRED IAW CESSNA REPAIR SR-680A-ATA53-22175. ## 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.