# N612QS: 2020 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: 680A0256 - Year built: 2020 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: October 23, 2020 - Certificate issued: May 26, 2026 - Expires: May 31, 2033 - Mode S code: A7F79B - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=612QS - Page: https://openairdocs.org/aircraft/N612QS 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 N612QS. ## FAA accident and incident reports None matched to N612QS. ## Service difficulty reports (16) 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 DXTA2025082504718](https://openairdocs.org/sdr/DXTA2025082504718), Aug 24, 2025: LATCH. OUT OF ADJUST. MAIN DOOR LATCH HANDLE WON'T CLOSE FROM OUTSIDE. FOUND AFT LATCHES/LOCKOUT OF ADJUSTMENT. PERFORMED CABIN DOOR LATCH/LOCK RIGGING REF AMM 52-10-04 OPS CHECKS GO - [SDR DXTA2025062704029](https://openairdocs.org/sdr/DXTA2025062704029), Jun 23, 2025: SEAL. LEAKING. DURING CRUISE WE NOTICED AN AUDIBLE SQUEAL COMING FROM THE EMERGENCY EXIT DOOR AREA. THERE WAS NO PRESSURIZATION ISSUES NOTED. AS WE DESCENDED THE SQUEAL WENT A - [SDR DXTA2025010601812](https://openairdocs.org/sdr/DXTA2025010601812), Jan 2, 2025: SEAL. LEAKING. OVER WING EMERGENCY EXIT DOOR IS ADMITTING A HIGH-PITCHED SQUEAL DURING CRUISE. APPEARS TO BE COMING FROM DOOR SEAL. INSPECTED AND CLEANED DOOR SEAL. NO DEFECTS - [SDR DXTA2024122001566](https://openairdocs.org/sdr/DXTA2024122001566), Dec 16, 2024: SEAL. FAILED. LOUD SQUEAL COMING FROM THE EMERGENCY EXIT DOOR. PASSENGERS ON THIS FLIGHT NOTICED THE NOISE. R&R EMERGENCY DOOR SEAL IAW MM 52-20-15, ALL FOLLOW ON CHECKS PASS - [SDR DXTA2024120401382](https://openairdocs.org/sdr/DXTA2024120401382), Dec 2, 2024: SEAL. LEAKING. DURING FLIGHT, PASSENGERS NOTIFIED US OF A SQUEAL COMING FROM THE BACK. THE SQUEAL SEEMED TO BE COMING FROM THE UPPER EMERGENCY EXIT AREA. PREPARED AND PRESSURI - [SDR DXTA2024120201290](https://openairdocs.org/sdr/DXTA2024120201290), Nov 25, 2024: SEAL. LEAKING. EMERG EXIT DOOR SEAL: WHILE SEATED IN THE COCKPIT, WE COULD HEAR A HIGH PITCH SQUEAL COMING FROM THE EMERGENCY DOOR SEAL. CORRECTIVE ACTION; PERFORMED EMERGENCY - [SDR DXTA2024011510622](https://openairdocs.org/sdr/DXTA2024011510622), Jan 14, 2024: UNKNOWN. UNKNOWN. EMERG EXIT DOOR SEAL, SQUEAL COMING FOR TOP OF EMERGENCY EXIT DOOR. PRESSURIZED THE AIRCRAFT TO 7 PSI, NO NOISES WERE NOTED FROM THE EMERGENCY DOOR. REMOVED EME - [SDR DXTA2023122610409](https://openairdocs.org/sdr/DXTA2023122610409), Dec 22, 2023: UNKNOWN. UNKNOWN. WHEN CLOSING MAIN CABIN DOOR , PASSING THROUGH THE HALFWAY POINT, THERE IS A LOUD SCREECHING/BINDING NOISE. OPENED AND CLOSED MAIN ENTRY DOOR SEVERAL TIMES. WAS - [SDR DXTA2023042184670](https://openairdocs.org/sdr/DXTA2023042184670), Apr 20, 2023: UNKNOWN. UNKNOWN. AT FL410 SMELLED A BURNING ODOR. THERE WAS NO SMOKE. PUT ON O2 MASKS & DIVERTED. FIREMEN USED A THERMAL IMAGING CAMERA & WERE NOT ABLE TO DETERMINE SOURCE. SMEL - [SDR DXTA2022112874740](https://openairdocs.org/sdr/DXTA2022112874740), Nov 25, 2022: HANDLE. JAMMED. MAIN DOOR HANDLE: UNABLE TO MOVE DOOR HANDLE FROM THE OPEN POSITION TO THE CLOSED POSITION. // SIGNOFF // DISASSEMBLY MAIN CABIN DOOR AND FOUND AFT, MIDDLE PIN - [SDR DXTA2022082268630](https://openairdocs.org/sdr/DXTA2022082268630), Aug 21, 2022: DOOR. WORN. MAIN DOOR: ATTEMPTED TO CLOSE MAIN CABIN DOOR. WAS NOT ABLE TO MOVE ACTUATOR HANDLE TO ENGAGE DOOR PINS. LOWERED DOOR AND TRIED TO MOVE THE ACTUATOR HANDLE TO C - [SDR DXTA2022081067700](https://openairdocs.org/sdr/DXTA2022081067700), Aug 10, 2022: LOCK PIN. DEFECTIVE. MAIN DOOR: ATTEMPTED TO CLOSE MAIN CABIN DOOR. WAS NOT ABLE TO MOVE ACTUATOR HANDLE TO ENGAGE DOOR PINS. LOWERED DOOR AND TRIED TO MOVE THE ACTUATOR HANDLE TO C - [SDR DXTA2022072566520](https://openairdocs.org/sdr/DXTA2022072566520), Jul 22, 2022: NONE. DEFECTIVE. GEAR DISAGREE L AMBER CAS: LANDING GEAR DID NOT EXTEND WHEN THE GEAR HANDLE WAS SELECTED DOWN. WE CYCLED THE LEVER AND IT STILL DIDNT EXTEND. THEN THE AMBER GEA - [SDR DXTA2022062764270](https://openairdocs.org/sdr/DXTA2022062764270), Jun 20, 2022: LOCK PIN. OUT OF ADJUST. MAIN DOOR HANDLE: MAIN CABIN DOOR HANDLE WILL NOT MOVE TO THE LOCK POSITION. PREFLIGHT. // SIGNOFF// REMOVED MAIN ENTRANCE DOOR STAIRS AND ACCESS PANELS IAW CE6 - [SDR DXTA2022052462550](https://openairdocs.org/sdr/DXTA2022052462550), May 23, 2022: PIN. BINDING. MAIN DOOR: MAIN CABIN DOOR HANDLE STUCK IN THE OPEN POSITION. // SIGNOFF// GET ACCESS TO THE MED RED BUTTON SWITCH BY REMOVING THE DOOR STEP, INSPECTED THE WIRE - [SDR DXTA2021122053850](https://openairdocs.org/sdr/DXTA2021122053850), Dec 19, 2021: NONE. NONE. MAIN DOOR: DOOR WON'T LOCK ... HANDLE BINDS ABOUT MIDWAY THRU BOTH OPENING AND CLOSING .. NOTE: AIRCRAFT WAS IN THE HANGER ALL NIGHT // SIGNOFF// INSPECJED DOOR ## Service difficulty reports on N612QS not matched to an aircraft (11) They name N612QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR DXTA2019022002050](https://openairdocs.org/sdr/DXTA2019022002050), Feb 20, 2019: UNKNOWN. ODOR. SOCIATED WITH ENVIRONMENTAL/HEAT DUCTS - NO TEMP ADJUSTMENTS WERE MADE). SMELL ONLY LASTED FOR ABOUT 5 MIN DURING DESCENT. SMELL OCCOURED AFTER 2 HR. FLIGHT AT - [SDR EBVR20140923001](https://openairdocs.org/sdr/EBVR20140923001), Sep 23, 2014: FITTING. CRACKED. FOUND 2 HORIZONTAL STAB PIVOT BOLT FITTING ASSEMBLY PN 6631102-15 CRACKED DURING OUR INSPECTIONS. MECHANICS NEED TO PAY CLOSE ATTENTION TO THIS AREA DURING INSP - [SDR DXTA2013090605495](https://openairdocs.org/sdr/DXTA2013090605495), Sep 5, 2013: IMPELLER. LEAKING. DURING TAKEOFF, A STRONG ACRID ODOR FILLED COCKPIT AND CABIN. APU WENT INOPERATIVE JUST PRIOR TO THE ODOR. TROUBLESHOT, FOUND APU IMPELLER OIL LEAK AT INLET. RE - [SDR DXTA2013081905479](https://openairdocs.org/sdr/DXTA2013081905479), Aug 18, 2013: UNKNOWN. SMOKE. DURING PREFLIGHT WITH ONLY THE APU RUNNING, THE CABIN FILLED WITH SMOKE. SHUTDOWN AND EVACUATED THE ACFT. UNABLE TO DUPLICATE. - [SDR DXTA2011041304545](https://openairdocs.org/sdr/DXTA2011041304545), Apr 11, 2011: TIRE. SEPARATED. RT MAIN TIRE SEPARATED ON LANDING. FOUND TIRE IN SHREADS AND LANDING GEAR WIRE BUNDLE BROKEN IN BOLT. R & R RT MAIN WHEEL ASSY WITH OH UNIT IAW MM CHAP 32-41-02 - [SDR DXTA2010020803976](https://openairdocs.org/sdr/DXTA2010020803976), Feb 5, 2010: ISOLATOR. OVERTEMP. ABOUT 400 FT AFTER TAKEOFF, LT ENG HAD HIGH ITT, WITH NOISE & VIBRATION SIMILAR TO COMPRESSOR STALLS. LT EEC ANNUNCIATOR ILLUMINATED ALSO. WHEN POWER ON LT ENG - [SDR DXTA200702237](https://openairdocs.org/sdr/DXTA200702237), Jun 2, 2007: ENGINE. VIBRATION. DURING TAKEOFF, THE NR 2 ENGINE HAD A HIGH PITCHED WHINE ACCOMPANIED BY A RT VIBE ADVISORY LIGHT, 101.1 PERCENT N2, AND AN OIL PRESSURE SPLIT OF APPROXIMATELY 3 - [SDR DXTA200601232](https://openairdocs.org/sdr/DXTA200601232), Feb 5, 2006: PRINTED CKT BOARD. FAULTY. UPON LANDING GEAR EXTENSION, GOT 2 GREEN LIGHTS FOR MAINS NO LIGHT FOR THE NOSE AND RED GEAR UNSAFE LIGHT. CYCLED THE GEAR THEN GOT THREE GREEN, NO RED. SLIGHTL - [SDR DXTA200500712](https://openairdocs.org/sdr/DXTA200500712), May 8, 2005: ENGINE. MALFUNCTIONED. ON TAKEOFF , ITT ON LT ENGINE REACHED 725 - 730 INITIALLY DECREASED THROTTLE TO IDLE W/IN 2-3 SECONDS DUPLICATED IN RUN UP PAD ITT ON LT ENGINE REACHED 720 IN C - [SDR DXTA200400267](https://openairdocs.org/sdr/DXTA200400267), Mar 16, 2004: WIRE. SHORTED. ABORTED TAKEOFF DUE TO ACCESSORY DOOR UNLOCKED TAIL ANNUNCIATOR AND MASTER CAUTION LIGHTS ILLUMINATED ON TAKEOFF ROLL AT APPROXIMATELY 70 KNOTS, ABORTED TAKEOFF - [SDR DXTA200300142](https://openairdocs.org/sdr/DXTA200300142), Oct 19, 2003: TRANSMITTER. MALFUNCTIONED. AS TAKE OFF POWER WAS APPLIED, THE RIGHT ENGINE OIL PRESSURE DROPPED TO ZERO THEN BEGAN TO JUMP BETWEEN NORMAL LEVELS AND ZERO. NO OTHER LOW OIL PRESSURE INDICA ## 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.