# N935QS: 2023 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: 680A0364
- Year built: 2023
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: September 26, 2023
- Certificate issued: June 17, 2025
- Expires: June 30, 2032
- Mode S code: ACF9AB
- Owner type: Co-owned, fractional ownership
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=935QS
- Page: https://openairdocs.org/aircraft/N935QS

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 N935QS.

## FAA accident and incident reports

None matched to N935QS.

## Service difficulty reports (5)

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 DXTA2025022802513](https://openairdocs.org/sdr/DXTA2025022802513), Feb 25, 2025: WARNING LIGHT. FALSE ACTIVATION. CABIN DOOR OPEN AMBER CAS: DOOR WOULD NOT LIFT, "CHECK HANDLE" APPEARD ON DOOR PANEL WHEN LIFT BUTTON PRESSED. WHEN OVERRIDE USED, CABIN DOOR OPEN CAS, AND DOOR
- [SDR DXTA2025021202299](https://openairdocs.org/sdr/DXTA2025021202299), Feb 8, 2025: BATTERY. DEFECTIVE. EMERGENCY BATTERIES NOT HOLDING CHARGE. ATTEMPTED TO CHARGE TWICE AND DOES NOT CHARGE. REPEAT WRITE UP. CORRECTIVE ACTION: REPLACED BATTERY. OPS CHECK GOOD. IAW
- [SDR DXTA2024053111926](https://openairdocs.org/sdr/DXTA2024053111926), May 30, 2024: SWITCH. DEFECTIVE. MAIN DOOR WAS STUCK OPEN. HAD TO RESET MAIN DOOR WITH QRH PROCEDURE. DOOR WILL NOW CLOSE BUT YELLOW OPEN LIGHT ON DOOR REMAINS ILLUMINATED. DOOR HANDLE ALSO STI
- [SDR DXTA2024040911449](https://openairdocs.org/sdr/DXTA2024040911449), Apr 8, 2024: WIRE HARNESS. FAILED. MAIN DOOR WILL NOT CLOSE COMPLETELY. ALL PINS APPEAR TO PROPERLY ENGAGED, YELLOW DOOR OPEN LIGHT ON DOOR, & AMBER CHK DOORS & DOOR OPEN MESSAGES REMAIN ILLUMINA
- [SDR 2024F00020](https://openairdocs.org/sdr/2024F00020), Jan 31, 2024: DOUBLER. DEBONDED. SEPERATION OF DOUBLER FROM WING STRUCTURE.

## Service difficulty reports on N935QS not matched to an aircraft (23)

They name N935QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR DXTA2016110306327](https://openairdocs.org/sdr/DXTA2016110306327), Nov 3, 2016: COALESCER BAG. DIRTY. NOXIOUS ODOR IS EMANATING FROM THE AIR DUCTS. THE AIR IS DIFFICULT TO BREATHE WHILE THE PLANE IS ON THE GROUND AND WAS NOTICEABLE TO THE PASSENGER. IN THE AIR T
- [SDR DXTA2016082706293](https://openairdocs.org/sdr/DXTA2016082706293), Aug 27, 2016: CONNECTOR. DISCONNECTED. LEFT MLG FAILED TO INDICATE DOWN AND LOCKED, NO GREEN LIGHT. EMERGENCY CHECKLIST FOLLOWED INCLUDING BLOW DOWN AND MANUAL RELEASE. FOUND 1 OF 2 LAMPS ON LT GEAR 
- [SDR DXTA2014112605938](https://openairdocs.org/sdr/DXTA2014112605938), Nov 25, 2014: UPLOCK SWITCH. OUT OF ADJUST. DURING DESCENT AT 335KTS, PASSING FL240, TWO LOUD RUMBLES WHERE HEARD & THE RED UNSAFE GEAR LIGHT BLINKED. WHILE LEVEL AT 16000 FT, 330KTS 2 LOUD RUMBLES WHERE 
- [SDR DXTA2014082405866](https://openairdocs.org/sdr/DXTA2014082405866), Aug 24, 2014: ENGINE. MALFUNCTIONED. UPON RT ENG START THE ENG DID NOT LIGHT OFF & THE START WAS ABORTED APPROX 20 SECONDS. AFTER THE ENG SPOOLED DOWN I ENGAGED THE STARTER TO LOWER THE ITT & RAMP 
- [SDR DXTA2014072805833](https://openairdocs.org/sdr/DXTA2014072805833), Jul 25, 2014: APU. FAILED. DIRTY SOCK ODOR COMING FROM BOTH A/C PACKS. REMOVED AND REPLACED COALESCER WATER CLOTHS FROM THE LEFT AND RIGHT WATER SEPARATORS IAW AMM 12-10-01. PERFORMED A B
- [SDR DXTA2014033005706](https://openairdocs.org/sdr/DXTA2014033005706), Mar 30, 2014: WARNING MESSAGE. FALSE INDICATION. WING TANK O FULL L MESSAGE ILLUMINATED DURING CRUISE. CYCLED ON & OFF REPEATEDLY. THIS WAS FOLLOWED BY FUEL VENTING. MESSAGE EXTINGUISHED & VENTING STOPPED AFTE
- [SDR DXTA2013121905600](https://openairdocs.org/sdr/DXTA2013121905600), Dec 19, 2013: VENT LINE. OUT OF POSITION. DURING CRUISE, AMBER WING TANK O FULL CAS MSG ILLUMINATED. CONFIRMED FUEL VENTING OVERBOARD. COMPLETED THE APPROPRIATE ABNORMAL CHECKLIST. LOST 180 LBS OF FUEL 
- [SDR DXTA2013101405541](https://openairdocs.org/sdr/DXTA2013101405541), Oct 20, 2013: ACM. LEAKING. CABIN FILLED WITH SMOKE. APU RUNNING, ISOLATION VALVE CLOSED. SMOKE THICKER TOWARD THE BACK OF PLANE, BUT LAVATORY WAS CLEAR. SEAT 9, LT SIDE WALL HOT & AFT CUP
- [SDR DXTA201207190552](https://openairdocs.org/sdr/DXTA201207190552), Jul 18, 2012: FLAP SYSTEM. FAILED. DURING APPROACH PHASE WITH FLAPS & SLATS AT 15, "FLAPS FAIL" AMBER CAS AND SYMNOPTIC WAS OBSERVED. ATTEMPTED RESET IAW CHECKLIST. FLAPS DID NOT RESET.
- [SDR DXTA2010021503988](https://openairdocs.org/sdr/DXTA2010021503988), Feb 12, 2010: CHECK VALVE. LEAKING. "CABIN DOOR SEAL" EICAS MESSAGE FOLLOWED BY HIGH PITCH SQUEAL AND RUSHING AIR PRESSURE. FLAG OF +- 500 FPM. REMOVED CTR AND LT BLEED AIR CHECK VALVES DUE TO LEA
- [SDR DXTA2009121003889](https://openairdocs.org/sdr/DXTA2009121003889), Dec 9, 2009: RESERVOIR. LEAKING. CLIMBING FROM 380 TO FL400, "HYD VOL A" CAS MESSAGE CAME ON. HYD VOL A WAS 13 PERCENT. FOLLOWED THE CHECKLIST, UNLOAD HYD PUMP A AND PULLED B/PTU CB. DIVERTED, 
- [SDR 2009F00121](https://openairdocs.org/sdr/2009F00121), Nov 25, 2009: CABIN PRESSURE. MALFUNCTIONED. PULLING THE POWER TO IDLE DESCENDING FROM 10000' WE HEARD A LOUD POP AND THE CABIN PRESSURE DUMPED. CABIN DIFFERENTIAL REMAINED AT ZERO AND THE CABIN RATE OF CH
- [SDR DXTA200702186](https://openairdocs.org/sdr/DXTA200702186), May 10, 2007: TIRE. OUT OF ROUND. AT 70 KNOTS ON TAKEOFF ROLL NOSEWHEEL SHIMMY OCCURRED RAPIDLY AND VIOLENTLY KNOCKING YAW DAMPER OFF LINE. FOUND BOTH NOSE TIRES OUT OF ROUND. REPLACED BOTH NOSE
- [SDR DXTA200601528](https://openairdocs.org/sdr/DXTA200601528), Jul 30, 2006: BRAKE. STUCK. DURING TAXI OUT AT SFO RIGHT BRAKE APPEARED TO BE DRAGGING. ON RETURN TAXI TO FBO GROUND CONTROL REPORTED SMOKE FROM THE BRAKE AREA. AIRCRAFT WAS STOPPED AND ON
- [SDR DXTA200601478](https://openairdocs.org/sdr/DXTA200601478), Jul 4, 2006: UNKNOWN. UNKNOWN. LOUD CLUNKING NOISE HEARD AND FELT ON COCKPIT FLOOR DURING CRUISE FLIGHT. OCCURRED ON SEVERAL OCCASIONS DURING CRUISE FLIGHT 400, NO GEAR INDICATION NOTED.
- [SDR DXTA200601453](https://openairdocs.org/sdr/DXTA200601453), Jun 23, 2006: ACM. FAILED. ON GROUND AT PBI, AFTER SELECTING BLEED AIR MAX COOL, NOTICED SMOKE FILLING THE COCKPIT. REMOVED & REPLACED COCKPIT PAC COOLING TURBINE IAW CE 750 MM 21-57-00. 
- [SDR DXTA200601274](https://openairdocs.org/sdr/DXTA200601274), Mar 1, 2006: PCU. FAILED. WHILE AT FL 400 IN CRUISE " FLT CONTROL FAULT " CAS MSG ILLUMINATED WITH VIOLENT RT ROLL/YAW OF A/C. DISENGAGED A/P, CHG,D FC COMPUTER AND NOTED LIGHT ON RIGHT 
- [SDR DXTA200501094](https://openairdocs.org/sdr/DXTA200501094), Nov 20, 2005: HOSE. BLOWN. PASSING THRU FL300 AMBER "HYD VOL LOW A" MESSAGE ILLUMINATED, FOLLOWED BY "HYD PUMP FAIL A" AND HYD PTU FAIL' MESSAGES. HYD QTY SHOWED 0%. APPROPRIATE CHECKLIST
- [SDR DXTA200500918](https://openairdocs.org/sdr/DXTA200500918), Aug 23, 2005: DOWNLOCK SWITCH. FAULTY. ON GEAR RETRACTION GREEN LT MAIN GEAR DOWN LIGHT REMAINED ILLUMINATED. GEAR APPEARED FULLY RETRACTED. GEAR EXTENDED NORMALLY FOR LANDING. REMOVED FAULTY DOWN LO
- [SDR DXTA200500724](https://openairdocs.org/sdr/DXTA200500724), May 13, 2005: FLOAT SWITCH. FAULTY. NO TAKEOFF AND MASTER WARNING CAME ON DURING TAKEOFF ROLL. DU NR 2 SHOWS FUEL QUALITY LOW, ABORTED TAKEOFF. FOUND FUEL QTY LOW LEVEL LT ILLUMINATED UP TO 630 LB
- [SDR DXTA200500609](https://openairdocs.org/sdr/DXTA200500609), Feb 24, 2005: B-NUT. LEAKING. ON DESCENT EGE NOSE GEAR BUMP (BUMP IN THE NIGHT) LOUD NOISE AND FELT IT IN THE FLOOR. FOUND A-SIDE HYDRAULICS AT 43 PERCENT AND A LOOSE B-NUT ON NLG ACTUATOR. 
- [SDR DXTA200400304](https://openairdocs.org/sdr/DXTA200400304), Apr 30, 2004: PITOT LINE. LEAKING. POWER WAS ADVANCED ON TAKEOFF , SHORTLY AFTER AMBER CAS PITOT HEAT FAIL LT AND RT CAME ON, ABORTED TAKE OFF. TROUBLESHOT AND FOUND STATIC LINE LEAKING, REMOVED 
- [SDR DXTA200300068](https://openairdocs.org/sdr/DXTA200300068), Jul 15, 2003: HYDRAULIC SYSTEM. LEAKING. IN CRUISE AT FL 410 HYDRAULIC VOLUME LOW CAS MESSAGE ILLUMINATED ON THE A-HYD SYSTEM, VOLUME SHOWED 16 PERCENT. INITIATED EMERGENCY CHECKLIST AND UNLOADED THE A

## 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

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