# N501QS: 2016 Textron 680A

- Status: Valid registration
- Airframe: [Textron 680A](https://openairdocs.org/model/textron-680a) (registry code 2076814, 10 seats)
- Engine: [Pratt & Whitney Canada PW306D](https://openairdocs.org/engine/pratt-whitney-canada-pw306d) (registry code 52041)
- 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: 680A0037
- Year built: 2016
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: June 20, 2016
- Certificate issued: October 22, 2026
- Expires: October 31, 2033
- Mode S code: A63F16
- Owner type: Co-owned
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=501QS
- Page: https://openairdocs.org/aircraft/N501QS

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 PW306D)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N501QS.

## FAA accident and incident reports

None matched to N501QS.

## Service difficulty reports (14)

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 DXTA2026070708721](https://openairdocs.org/sdr/DXTA2026070708721), Jun 12, 2026: LINK ASSY. CORRODED. PITTING FOUND ON THE LH TRAILING LINK WHILE COMPLETING SL680A-32-11. COMPLIED WITH REPLACEMENT OF LT TRAILING LINK ENHANCED INSPECTION IAW SL680A-32-11 REV 2. N
- [SDR DXTA2025052303582](https://openairdocs.org/sdr/DXTA2025052303582), May 21, 2025: SERVO. FAULTED. DURING STRAIGHT AND LEVEL FLIGHT AT FL430, BOTH PILOT AND COPILOT CONTROL YOKES WERE CANTED TO THE RIGHT ABOUT 5-10 DEGREES WHILE ALL AILERON INDICATIONS APPEAR
- [SDR DXTA2024090300357](https://openairdocs.org/sdr/DXTA2024090300357), Aug 28, 2024: DIODE. FAILED. COCKPIT EMERG LIGHT: EMERGENCY LIGHT OVER SEAT 3 AND FLOOR EMERGENCY LIGHT UNDER SEAT 3 ARE INOPERABLE. PERFORMED 2 RECHARGE PROCEDURES WITH NO CHANGE. FOUND ZO
- [SDR DXTA2023033183470](https://openairdocs.org/sdr/DXTA2023033183470), Mar 31, 2023: UNKNOWN. UNKNOWN. LANDING GEAR HANDLE: UPON DEPARTURE OUT OF KXNX AT POSITIVE RATE GEAR HANDLE WOULD NOT MOVE. WE RAN CHECKLIST BUT HAD NO ABNORMAL INDICATIONS, WE TRIED THE GEAR
- [SDR DXTA2022020756340](https://openairdocs.org/sdr/DXTA2022020756340), Feb 6, 2022: NOT REPORTED. NOT REPORTED. CABIN DOOR OPEN AMBER CAS: DOOR OPEN LIGHT ON THE DOOR ITSELF AND THE CABIN DOOR OPEN AMBER CAS MESSAGE ARE BOTH ILLUMINATED.///SIGN-OFF/// ADJUSTED AND SECURED
- [SDR DXTA2021083047910](https://openairdocs.org/sdr/DXTA2021083047910), Aug 29, 2021: LIGHT. BROKEN. LAV EMERG LIGHT: EVACUATION PATH LIGHTING STRIP UNDER SEAT 10 HAS COME LOSE AND IS BROKEN ON RIGHT SIDE. LEFT SIDE OF STRIP STILL HAS POWER AND LIGHTS. THE RIGH
- [SDR 2021FA0000193](https://openairdocs.org/sdr/2021FA0000193), Jul 2, 2021: SKIN. CORRODED. CORROSION ON STRINGER AFT UPPER SKIN ASSEMBLY PN: 6912640-15.
- [SDR 2021F00268](https://openairdocs.org/sdr/2021F00268), Jul 1, 2021: STRINGER. CORRODED. REPAIR TO APU STINGER CORROSION. TEXTRON AVIATION ENGINEERING REPAIR LETTER DQ30523M1 DATED: 06/29/2021, 680A-0037 (N501QS) APU STINGER CORROSION DAMAGE.
- [SDR DXTA2020101204198](https://openairdocs.org/sdr/DXTA2020101204198), Oct 12, 2020: WARNING MESSAGE. FALSE ACTIVATION. CLIMB OUT GOT NOSE DOOR OPEN RT. QHR COMPLIED WITH. RETURN TO KDAL. POST FLIGHT SAW BOTTOM RIGHT LATCH POPPED OUT. CYCLED ALL LATCHES, CASS EXTINQUISHED. TALKED
- [SDR 2020F00309](https://openairdocs.org/sdr/2020F00309), Jun 25, 2020: SKIN. CORRODED. REPAIR OF HORIZONTAL STABILIZER SKIN DAMAGE (CORROSION). ENGINEERING REPAIR LETTER DQ26103M1 DATED: 06/24/2020.
- [SDR 2020F00322](https://openairdocs.org/sdr/2020F00322), Jun 24, 2020: SKIN. GOUGED. REPAIR GOUGES IN LT ELEVATOR. ERL DQ26099M1.
- [SDR 2020F00321](https://openairdocs.org/sdr/2020F00321), Jun 24, 2020: SKIN. CORRODED. FIELD REPAIR FR-680A-0037-8080. CORROSION, HORIZONTAL STABILIZER, UPPER AND LOWER SKINS, LBL 16.5 TO RBL 16.5. WITH FAA FORM 8100-9
- [SDR 2020F00317](https://openairdocs.org/sdr/2020F00317), Jun 22, 2020: FRAME. CRACKED. NLG WHEEL WELL WEB AND UPPER MID FRAME CRACKED. STANDARD REPAIR SR-680A-ATA53-25890 , CRACK DAMAGE, NOSE LANDING GEAR WHEEL WELL (NWW),
- [SDR 2020F00316](https://openairdocs.org/sdr/2020F00316), Jun 18, 2020: SKIN. CORRODED. REPAIR OF CORROSION ON TAILCONE STINGER INNER RIGHTHAND SKIN. TEXTRON AVIATION ENGINEERING REPAIR LETTER DQ26060M1 DATED 06/16/2020.

## Service difficulty reports on N501QS not matched to an aircraft (1)

They name N501QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR GR4R201610280003](https://openairdocs.org/sdr/GR4R201610280003), Oct 28, 2016: SEAT TRACK. CORRODED. ON SEAT TRACK LBL 6, AFT OF FS 515 HAS CORROSION.

## 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 PW306D engine: https://openairdocs.org/engine/pratt-whitney-canada-pw306d.md

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