# N668QS: Textron 680A

- Status: Valid registration
- Airframe: [Textron 680A](https://openairdocs.org/model/textron-680a) (registry code 2076814, 10 seats)
- Data sheets: [TCDS T00012WI](https://openairdocs.org/tcds/T00012WI) (Textron Aviation Inc.) (OpenAirDocs)
- Serial number: 680A0276
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Certificate issued: October 6, 2026
- Expires: October 31, 2033
- Mode S code: A8D360
- Owner type: Co-owned, fractional ownership
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=668QS
- Page: https://openairdocs.org/aircraft/N668QS

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

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N668QS.

## FAA accident and incident reports

None matched to N668QS.

## 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 DXTA2026032507372](https://openairdocs.org/sdr/DXTA2026032507372), Mar 23, 2026: SWITCH. DEFECTIVE. DURING INITIAL TAXI OUT, PARK BRAKE LOW PRESS AMBER CAS ILLUMINATED. PARKING BRAKE WAS DISENGAGED PER THIS PHASE OF FLIGHT. STOPPED AIRCRAFT AND CYCLED THE PARK
- [SDR DXTA2023051686220](https://openairdocs.org/sdr/DXTA2023051686220), May 15, 2023: BRAKE. LEAKING. LEFT MLG MLG HYDRAULIC LINE: LEFT MAIN GEAR HAS FULID LEAKING FROM MAIN BRAKE LINE. ALSO ON POST FLIGHT WHEEL ASSEMBLY WAS SMOKING. REMOVED AND REPLACED THE #2 
- [SDR DXTA2023022381100](https://openairdocs.org/sdr/DXTA2023022381100), Feb 23, 2023: SWITCH. ABNORMAL. NLG LANDING GEAR RETRACTION: I HAD TO SELECT A GEAR FOR THIS AOG, BUT I REALLY HAVE NO IDEA WHICH ONE IT IS. UPON RETRACTION, WE HEARD AN ABNORMAL SOUND ("THUNK
- [SDR DXTA2022100371440](https://openairdocs.org/sdr/DXTA2022100371440), Oct 1, 2022: UPLOCK SWITCH. DEFECTIVE. MLG: AFTER TAKEOFF RIGHT MAIN LANDING GEAR FAILED TO RETRACT. RECEIVED A GEAR DISAGREE R AMBER CAS MESSAGE. PERFORMED ARES DOWNLOAD & SENT TO MANUFACTURER FOR R
- [SDR DXTA2022030357790](https://openairdocs.org/sdr/DXTA2022030357790), Mar 3, 2022: SWITCH. DEFECTIVE. NLG LANDING GEAR EXTENSION: AFTER TAKEOFF, WHEN THE LANDING GEAR HANDLE WAS SELECTED UP, A VIOLENT SHAKING AND VIBRATION OCCURED. I IMMEDIATLY SELECTED THE LAND

## Service difficulty reports on N668QS not matched to an aircraft (18)

They name N668QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR DXTA201509296092](https://openairdocs.org/sdr/DXTA201509296092), Sep 29, 2015: APU. MALFUNCTIONED. HEAVY GREY SMOKE FILLED THE CABIN WHILE APU OPERATING DURING PRE-FLIGHT. OPENED ACCESS & REMOVED APU PN 3800722-1 & SN P-677 FROM ACFT. PERFORMED TEAR DOWN & BU
- [SDR DXTA2015092806092](https://openairdocs.org/sdr/DXTA2015092806092), Sep 27, 2015: UNKNOWN. SMOKE. HEAVY GREY SMOKE FILLED THE CABIN WHILE APU OPERATING DURING PREFLIGHT. LINE SERVICE INITIALLY ALERTED ME OF SMOKE COMING OUT OF APU EXHAUST & THEN SECONDS LATE
- [SDR DXTA2014082105862](https://openairdocs.org/sdr/DXTA2014082105862), Aug 20, 2014: STRUT. FAULTY. DURING FLIGHT GEAR UNSAFE RED LIGHT ILLUMINATED, NO GREEN LIGHTS ILLUMINATED. COMPLIED WITH APPLICABLE CHECKLIST. TROUBLE SHOT NLG RETRACTION & EXTENSION COMPON
- [SDR DXTA2014051505773](https://openairdocs.org/sdr/DXTA2014051505773), May 14, 2014: DOOR. UNSECURE. ON TAKEOFF & CLIMB THROUGH 1000 FEET, THERE WAS A PRESS BUMP, FOLLOWED BY WIND NOISE & THE DOOR SEAL & CABIN DOOR ANNUNCIATORS COMING ON. WE DID NOT CLIMB ABOVE
- [SDR DXTA2013120505590](https://openairdocs.org/sdr/DXTA2013120505590), Dec 4, 2013: APU. MALFUNCTIONED. AFTER APU WAS STARTED & GEN SWITCH WAS ON, WE TURNED THE BLEED AIR ON. ALMOST IMMEDIATELY SMOKE STARTED FILLING THE COCKPIT. THE SMOKE DID NOT APPEAR TO BE COMI
- [SDR DXTA201304170557](https://openairdocs.org/sdr/DXTA201304170557), Apr 16, 2013: OIL SYSTEM. OVERSERVICED. SWEET ODOR OF SMOKE IN CABIN ON GROUND, WITH APU SUPPLYING BLEED AIR FOR ACM. APU FAILED A PORTION OF INITIAL PREFLIGHT CHECK, WITH "READY TO LOAD LIGHT" FAILIN
- [SDR DXTA2011091204725](https://openairdocs.org/sdr/DXTA2011091204725), Sep 9, 2011: DOWNLOCK SWITCH. INOPERATIVE. AFTER TAKEOFF, WITH THE LANDING GEAR HANDLE SELECTED UP, THE NOSE GEAR INDICATOR REMAINED ILLUMINATED (THE RED UNLOCK LIGHT WAS NOT ILLUMINATED). R & R NLG ACTU
- [SDR DXTA2011070504646](https://openairdocs.org/sdr/DXTA2011070504646), Jul 4, 2011: BEARING. WORN. CLIMBING THROUGH 10,000 FT & ACCELERATING PAST 200, A NOTICABLE VIBRATION FELT IN YOLK, MOST NOTICABLE AFTER AILERON TRIM WAS PUT INTO LEVEL WITH WINGS. AFTER L
- [SDR DXTA2011070504645](https://openairdocs.org/sdr/DXTA2011070504645), Jul 4, 2011: BRAKE SYS. MALFUNCTIONED. UPON LANDING, NOTICED THAT THE LT BRAKE PEDAL REQUIRED VERY LITTLE MOVEMENT BEFORE IT WOULD GRAB, THE RT BREAK PEDAL REQUIRED A NORMAL AMOUNT OF MOVEMENT. THIS 
- [SDR DXTA200802848](https://openairdocs.org/sdr/DXTA200802848), Feb 7, 2008: UPLOCK SWITCH. LOOSE. WHEN THE GEAR IS SELECTED UP AND IT'S UP AND STOWED, A LOUD CLUNK OCCURS FROM THE NOSE AREA. FOUND NOSE GEAR UPLOCK AFT JAM NUT LOOSE AND NOT MAKING ADEQUATE CO
- [SDR DXTA200702077](https://openairdocs.org/sdr/DXTA200702077), Apr 3, 2007: BRAKE ASSY. HOT. RT BRAKE EXCESSIVELY GRABS AND WHEN INSPECTED IS EXTREMELY HOT. PERFORMED TAXI CHECK. FOUND EVEN APPLICATION WHEN BRAKING. BRAKES USUALLY EXTREMELY HOT AFTER LA
- [SDR CWQR200624](https://openairdocs.org/sdr/CWQR200624), Aug 21, 2006: CONTROL CABLE. BROKEN. DURING A PHASE 1-4 INSPECTION, OPERATOR REQUESTED WE INSPECT THE AFT ELEVATOR TRIM CABLES. UPON INSPECTION WE FOUND BROKEN WIRES. TOOK CABLE TENSIONS, FOUND TO 
- [SDR DXTA200601481](https://openairdocs.org/sdr/DXTA200601481), Jul 5, 2006: BOLT. SHEARED. PLANE ROCKS VIOLENTLY WHEN TRYING TO STEER, NOSE WHEEL STEERING DOES NOT RESPOND. FOUND STEERING GEAR BOLTS SHEARED. REMOVED AND REPLACED NOSE STEERING SHEET BO
- [SDR DXTA200501037](https://openairdocs.org/sdr/DXTA200501037), Oct 27, 2005: POSITION SWITCH. INOPERATIVE. HYDRAULIC PRESS & UNLOCK LIGHT REMAIN ILLUMINATED ON GEAR RETRACTION. RECYCLED HYD CONTROL PER CK LIST. RECYCLED GEAR & PROBLEM REPEATED ITSELF (SUSPECT NOSE GE
- [SDR DXTA200501007](https://openairdocs.org/sdr/DXTA200501007), Oct 7, 2005: RESERVOIR. LOW. LANDING GEAR WOULD NOT UPLOCK, UNLOCK LIGHT REMAINED ILLUMINATED FOLLOWED BY HYD PRESS LIGHT. FOUND HYD RESERVOIR LOW. SERVICED RESERVOIR TO FULL. PERFORMED LAN
- [SDR DXTA200400305](https://openairdocs.org/sdr/DXTA200400305), May 3, 2004: WARNING SYSTEM. ACTIVATED. AFTER TAKEOFF THE GEAR WAS RETRACTED, THE THREE GREEN INDICATORS WENT OUT BUT THE RED LIGHT REMAINED ON, FLAPS AND STAB WERE NOT COMMANDED TO MOVE. RED LIGHT RE
- [SDR DXTA200300181](https://openairdocs.org/sdr/DXTA200300181), Nov 23, 2003: CONTROL CABLE. CHAFED. PERFORMED AILERON WING CABLE INSPECTION PER CESSNA ASL560XL-27-12, FOUND CABLES CHAFED/BROKEN BEYOND MANUFACTURER'S LIMITS. REMOVED AND REPLACED LT AND RT WING 
- [SDR DXTA200300112](https://openairdocs.org/sdr/DXTA200300112), Sep 11, 2003: HANDLE. INOPERATIVE. "GEAR UNLOCK" LIGHT REMAINED ILLUMINATED AFTER GEAR HANDLE PLACED IN THE UP POSITION. PERFORMED LANDING GEAR FUNCTIONAL TEST, CHECKED GOOD. CHECKED RIGGING ALL 

## 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

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