# N943QS: 2024 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: 680A0376
- Year built: 2024
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: January 18, 2024
- Certificate issued: July 31, 2024
- Expires: July 31, 2031
- Mode S code: AD19BC
- Owner type: Co-owned, fractional ownership
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=943QS
- Page: https://openairdocs.org/aircraft/N943QS

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 N943QS.

## FAA accident and incident reports

None matched to N943QS.

## Service difficulty reports (9)

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 DXTA2026021106858](https://openairdocs.org/sdr/DXTA2026021106858), Feb 10, 2026: DOOR SEAL. LACK OF LUBE. MCD HANDLE VERY DIFFICULT TO SECURE. MED HANDLE VERY DIFFICULT TO SECURE PERFORMED MINOR ADJUSTEMENT ON UPPER FWD AND AFT ECCENTRICS. CLEANED AND LUBRICATED THE
- [SDR 2025F00172](https://openairdocs.org/sdr/2025F00172), Aug 4, 2025: STRINGER. MECHANIC ERROR. DOUBLE DRILLED HOLES, TAILCONE, STRINGER 9R SPLICE, W.L. 121.5 F.S. 560.3-576.2. ACCOMPLISHED FR-680A-0376-15468 REV. -, FIELD REPAIR - DOUBLE DRILLED HOLES, TA
- [SDR DXTA2025061303849](https://openairdocs.org/sdr/DXTA2025061303849), Jun 10, 2025: DOOR. OUT OF RIG. MAIN CABIN DOOR SEEMS TO BE OUT OF ALIGNMENT, JAMS UP A THIRD OF THE WAY DOWN. ALL 6 CAMS APPEAR TO BE NOT CENTERED. NEEDS EVALUATION. ADJUSTED DOOR RIGGING. OP
- [SDR DXTA2025042503203](https://openairdocs.org/sdr/DXTA2025042503203), Apr 24, 2025: DOOR. LACK OF LUBE. WHEN LOCKING MAIN CABIN DOOR, DOOR HANDLE GETS STUCK APPROXIMATELY HALFWAY AND REQUIRES EXCESSIVE FORCE TO MOVE DOWN TO THE LOCKED POSITION. LOCKING MAIN CABIN 
- [SDR DXTA2024121301478](https://openairdocs.org/sdr/DXTA2024121301478), Dec 11, 2024: SWITCH. OUT OF ADJUST. IN FLIGHT AROUND 10,000 FEET WE FELT AND SAW THE CABIN ALTITUDE RISING. IT CLIMBED TO 9650 AND WE GOT THE CAUTION AND WARNING MESSAGES. WE LEVELED OFF, RAN THE 
- [SDR DXTA2024121301479](https://openairdocs.org/sdr/DXTA2024121301479), Dec 11, 2024: SWITCH. OUT OF ADJUST. IN FLIGHT AT 10,000 FEET WE GOT THE AMBER CABIN DOOR OPEN AND THE CHECK DOORS CAS MESSAGES. WE RAN THE QRH AND RETURNED TO THE FIELD. CHECKING THE VENT DOOR SWI
- [SDR DXTA2024111501134](https://openairdocs.org/sdr/DXTA2024111501134), Nov 13, 2024: FAULT MESSAGE. FALSE ACTIVATION. ENG CNTRL FAULT L AMBER CAS: ENG CNTRL FAULT L AMBER CAS MESSAGE APPEARED AT THE END OF RUNWAY BEFORE TAKEOFF. RAN QRH PROCEDURE AND DID NOT CLEAR. ALSO NOTICED
- [SDR DXTA202401100716](https://openairdocs.org/sdr/DXTA202401100716), Sep 30, 2024: CONTROLLER. DEFECTIVE. CLIMBING THROUGH 11000FT AMBER CABIN ALTITUDE CAS ILLUMINATED LEVELED AT 13000FT FOLLOWED BY RED CABIN ALTITUDE CAS. IMMEDIATELY DESCENDED TO 10000FT FOLLOWED S
- [SDR DXTA2024042511590](https://openairdocs.org/sdr/DXTA2024042511590), Apr 24, 2024: DOOR. BINDING. WHEN OPENING THE MAIN DOOR, IT APPEARS TO BIND. CLOSING MAINN DOOR, LATCHING MECHANISM IS VERY DIFFICULT TO CLOSE. T INTERIOR AND EXTERIOR OF THE ACFT. PERFORME

## Service difficulty reports on N943QS not matched to an aircraft (24)

They name N943QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR DXTA2013091105499](https://openairdocs.org/sdr/DXTA2013091105499), Sep 10, 2013: CDU. FAILED. BRIEF ODOR OF ELECTRICAL SMOKE OCCURED IN FLIGHT ACCOMPANIED BY FMS NR 2 FAILED, INCLUDING BLANK SCRATCH PAD. SMOKE IMMEDIATELY DISSIPATED. TROUBLESHOOTING FOUN
- [SDR DXTA2013032505333](https://openairdocs.org/sdr/DXTA2013032505333), Mar 24, 2013: UPLOCK SWITCH. OUT OF ADJUST. IMMEDIATELY AFTER TAKEOFF, WHEN GEAR HANDLE WAS SELECTED TO UP POSITION, GEAR UNLOCK LIGHT FLASHED 5 OR 6 TIMES AS NOSE GEAR REPEATED TO MAKE LOUD BANGING NOISE
- [SDR DXTA2012060404986](https://openairdocs.org/sdr/DXTA2012060404986), Jun 3, 2012: FAIRING. DAMAGED. PLACED GEAR HANDLE TO DOWN POSITION DURING FLIGHT, NOSE GEAR MADE A VERY HARD AND LOUD BANG FOLLOWED BY AN UNUSUAL VIBRATION AND WIND NOISE AT 190KTS. SLOWED BE
- [SDR DXTA2011041104543](https://openairdocs.org/sdr/DXTA2011041104543), Apr 10, 2011: BRAKE. WEAK. BRAKES ARE VERY "MUSHY" WHEN PRESSURE IS APPLIED. BRAKES ARE ALSO GRINDING WHEN STOPPING. BLED BRAKES NOTED SMALL AMOUNTS OF AIR REMOVED FROM SYS. USED COMPRESS
- [SDR DXTA2010012803958](https://openairdocs.org/sdr/DXTA2010012803958), Jan 27, 2010: UPLOCK SWITCH. OUT OF TOLERANCE. DURING DESCENT OUT OF 16,000 FT, GOT A BUMP IN NOSE GEAR AREA, THEN OUT OF 10,000 FT THE BUMP RETURNED WITH AN UNLOCK GEAR LIGHT FOR A SECOND AND WENT AWAY. GEA
- [SDR DXTA2010010503930](https://openairdocs.org/sdr/DXTA2010010503930), Jan 4, 2010: INDICATOR. ERRATIC. RT WING FUEL INDICATOR ON EICAS IS INDICATING ERRATIC FUEL QUANTITIES. NO PROBE FAULTS OR CUMULATIVE FAULTS ON IMT. CHECKED WIRING AT SIGNAL CONDITIONER, CHECKE
- [SDR DXTA2009032303560](https://openairdocs.org/sdr/DXTA2009032303560), Mar 11, 2009: BOLT. WORN. WHILE TURNING THE YOKE TO THE RIGHT, THE CONTROLS "BIND" UP AROUND HALF DEFLECTION. REMOVED AND REPLACED CORRODED SPOILER INBD AND OTBD BUNGEES. REMOVED AND REP
- [SDR DXTA2009010103453](https://openairdocs.org/sdr/DXTA2009010103453), Jan 1, 2009: TIRE. OUT OF ROUND. LOW SPEED ABORT DUE TO SEVERE ACFT SHIMMY, ABORT OCCURRED JUST PRIOR TO 80KTS, BOTH AHRS DROPPED OFF DURING SHIMMY. FOUND BOTH LT AND RT NLG TIRES OUT OF ROUND 
- [SDR DXTA2009010203453](https://openairdocs.org/sdr/DXTA2009010203453), Jan 1, 2009: UNKNOWN. VIBRATION. LOW SPEED ABORT DUE TO SEVERE AIRCRAFT SHIMMY, ABORT OCCURRED JUST PRIOR TO 80KTS, BOTH AHRS DROPPED OFF DURING SHIMMY.
- [SDR DXTA2008122103428](https://openairdocs.org/sdr/DXTA2008122103428), Dec 21, 2008: TIRE. FAILED. RT OTBD TIRE IS FLAT. RT INBD TIRE BLOWN. LT INBD TIRE HAS FLAT SPOT WITH WITH CORDS SHOWING. REMOVED AND REPLACED LT OTBD TIRE REF MM 32-00-00. NO FURTHER DEFE
- [SDR DXTA2008122303428](https://openairdocs.org/sdr/DXTA2008122303428), Dec 21, 2008: TIRE. FAILED. RIGHT OUTBOARD TIRE IS FLAT. RIGHT INBOARD TIRE BLOWN. LEFT OUTBOARD TIRE HAS FLAT SPOT WITH CORDS SHOWING.
- [SDR DXTA2008102703316](https://openairdocs.org/sdr/DXTA2008102703316), Oct 24, 2008: LANDING GEAR. VIBRATION. HIGH SPEED ABORT ABOUT 102 KTS; HAD NOSE WHEEL SHIMMY. PERFORMED NOSE WHEEL SHIMMY, MX CHECKLIST. FOUND BOTH NOSE TIRES WERE OUT OF ROUND. UPPER AND LOWER TORQU
- [SDR DXTA200803134](https://openairdocs.org/sdr/DXTA200803134), Jun 19, 2008: RELEASE MECH. OUT OF RIG. DURING FLIGHT THE LANDING GEAR UNLOCK LIGHT ILLUMINATED SEVERAL TIME IN QUICK SECESSION ACCOMPANIED BY A LOUD THUMPING SOUND. COMPLIED WITH NJA GEAR BUMP CHECKL
- [SDR DXTA200803085](https://openairdocs.org/sdr/DXTA200803085), May 31, 2008: ACTUATOR. FAILED. DESCENDING OUT OF FL410 "RUDDER LIMIT FAIL A" CAS MESSAGE ILLUMINATED. RUDDER LIMITER FAILED AT 23 PERCENT. R&R "UPPER LIMITER ACTUATOR A" WITH NEW.
- [SDR DXTA200802981](https://openairdocs.org/sdr/DXTA200802981), Apr 6, 2008: WHEEL. VIBRATION. SEVERE NOSEWHEEL SHIMMY ON TO ROLL, PRIOR TO 80 KTS. REMOVED BOTH NOSE WHEEL ASSEMBLIES AND INSTALLED OVERHAULED ASSEMBLIES WITH NEW TIRES. ADJUSTED NOSE GEAR C
- [SDR DXTA20082981](https://openairdocs.org/sdr/DXTA20082981), Apr 6, 2008: WHEEL. VIBRATION. SEVERE NOSEWHEEL SHIMMY ON T/O ROLL, PRIOR TO 80 KTS.
- [SDR DXTA200702041](https://openairdocs.org/sdr/DXTA200702041), Mar 21, 2007: COALESCER BAG. ODOR. EXTREME CABIN ODOR WHEN BLEED AIR TURNED ON. REMOVED BOTH COALESCER SOCKS & INSTALLED 2 NEW SOCKS. RAN APU & BOTH ENGINES SEPERATELY & TOGETHER, W/ BLEED AIR, N
- [SDR DXTA200601310](https://openairdocs.org/sdr/DXTA200601310), Mar 21, 2006: SEAL. FAILED. DURING GEAR RETRACTION UNLOCK LIGHT FLICKERED AS NOSE GEAR THUMPED IN WHEEL WELL 4 TIMES. PERFORMED FUNCTIONAL CHECK ON SYSTEM AND COULD NOT REPRODUCE GEAR THUM
- [SDR DXTA200601301](https://openairdocs.org/sdr/DXTA200601301), Mar 15, 2006: STRUT. OUT OF RIG. ONCE LANDING GEAR WAS RETRACTED, RED UNLOCK LIGHT REMAINED ILLUMINATED. FOUND NOSE EXTENSION OUT OF LIMITS AND NOSE UPLOCK CABLE RIGGING TOO TIGHT. ADJUSTED NOS
- [SDR DXTA200500931](https://openairdocs.org/sdr/DXTA200500931), Aug 26, 2005: ACM. INOPERATIVE. IN FLIGHT HEARD A LOUD POP IN THE CABIN FOLLOWED BY AN ELECTRICAL BURNING ODOR, ALSO IN THE CABIN SHEDDING THE CABIN ELECTRICAL LOAD WITH THE INTERIOR MASTER TO
- [SDR DXTA200500910](https://openairdocs.org/sdr/DXTA200500910), Aug 20, 2005: A/C PACK. OVERTEMP. LEFT PACK TEMP 120 DEGREES AND RISING UNCONTROLLABLE BOTH MANUAL OR AUTO FOLLOWED BY BLUE SMOKE IN THE COCKPIT COMING FROM AIR VENTS. ITEM IS UNDER INVESTIGATIO
- [SDR DXTA200500533](https://openairdocs.org/sdr/DXTA200500533), Jan 14, 2005: DAU. FAILED. DAU 2B MISCOMP CAS MESSAGE CYCLED THREE TIMES. STAYED ON THE THIRD TIME, ALL ENGINE INDICATORS, OIL, FUEL FLOW, FUEL QUANTITIES, ETC. FAILED DAU FAIL CAS MESSAG
- [SDR DXTA200400438](https://openairdocs.org/sdr/DXTA200400438), Nov 3, 2004: STRUT. DAMAGED. AFTER GEAR RETRACTION, RED UNLOCK GEAR LIGHT REMAINED ILLUMINATED. AFTER TOUCHDOWN NOTICED MODERATE VIBRATION COMING FROM GEAR. PERFORMED GEAR SWING COULD NO DU
- [SDR DXTA200300113](https://openairdocs.org/sdr/DXTA200300113), Sep 12, 2003: WINDOW POST. CHAFED. WHILE PERFORMING MAINTENANCE NEAR PILOT'S SIDE WINDOW, NOTICED WINDSHIELD CENTER POST HAS CHAFE DAMAGE, FURTHER EVALUATION SHOWED DAMAGE MEASURED APPROX. .375 I

## 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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