# N516QS: 2018 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: 680A0149 - Year built: 2018 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: August 15, 2018 - Certificate issued: December 12, 2024 - Expires: December 31, 2031 - Mode S code: A67928 - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=516QS - Page: https://openairdocs.org/aircraft/N516QS 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 N516QS. ## FAA accident and incident reports None matched to N516QS. ## Service difficulty reports (6) 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 DXTA2026011206491](https://openairdocs.org/sdr/DXTA2026011206491), Jan 8, 2026: SQUAT SWITCH. FAULTED. NOSE WHEEL STEERING FAILED AFTER LANDING. STOPPED ON RUNWAY, NO RESPONSE FROM RUDDER OR TILLER. DIFF BRAKING GOT US ENOUGH DEFLECTION TO CLEAR THE RUNWAY. STEER - [SDR DXTA2025070304103](https://openairdocs.org/sdr/DXTA2025070304103), Jun 30, 2025: YOKE. OUT OF ADJUST. CAPTAIN CONTROL YOKE: IN THE AIR WHEN THE YOKE IS CENTERED, THE AIRPLANE WILL TURN TO THE LEFT. WHEN THE AIRPLANE IS CENTERED THE YOKE IS OFF TO THE RIGHT. THER - [SDR DXTA2025061803937](https://openairdocs.org/sdr/DXTA2025061803937), Jun 17, 2025: BATTERY. FAILED. DURING THE INTERIOR PREFLIGHT IT WAS DISCOVERED THAT THE OVERHEAD EMERGENCY LIGHT OVER SEAT 3 WOULD NOT ILLUMINATE DURING THE EMERGENCY LIGHTS CHECK. WE ATTEMPT - [SDR DXTA2023092696500](https://openairdocs.org/sdr/DXTA2023092696500), Sep 26, 2023: UNKNOWN. UNKNOWN. WHILE CLOSING THE MAIN ENTRY DOOR FROM INSIDE, THE DOOR CLOSED HALFWAY UP AND STOPPED, RETURNED TO FULL OPEN. THIS HAPPENED TWO DIFFERENT TIMES WITH THE DOOR CL - [SDR DXTR20220826](https://openairdocs.org/sdr/DXTR20220826), Aug 26, 2022: PANEL. ELONGATED. VERTICAL STABILIZER HAS AN ELONGATED FASTENER HOLE AT THE 341CL PANEL (LH SIDE). RESOUTION: ACCOMPLISHED MAJOR REPAIR IAW AQRD ERO-106773 DATED 8/17/22 - [SDR DXTA2021020804686](https://openairdocs.org/sdr/DXTA2021020804686), Feb 5, 2021: DOOR. UNKNOWN. MAIN DOOR: WITH THE CABIN DOOR IN THE FULLY CLOSED AND LOCKED IE SILVER HANDLE IN THE DOWN POSITION, THE MESSAGES AMBER CABIN DOOR OPEN AND AMBER CHECK DOORS IS ## Service difficulty reports on N516QS not matched to an aircraft (8) They name N516QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR DXTA2012101805151](https://openairdocs.org/sdr/DXTA2012101805151), Oct 17, 2012: WINDSHIELD. FAILED. LEFT, FORWARD WINDSHIELD FAILED IN FLIGHT AT FL450. OUTER HEATING PANE ONLY. R & R WINDSHIELD. OPS & LEAK CHECKED GOOD. REF. CMP 561005, B04027 & STANDARD PRACT - [SDR N93A26062007](https://openairdocs.org/sdr/N93A26062007), Jun 26, 2007: TILLER. UNKNOWN. ON TOUCHDOWN, CREW RECEIVED NOSE WHEEL STEERING FAIL MESSAGE. - [SDR N93A30012007](https://openairdocs.org/sdr/N93A30012007), Jan 30, 2007: BLEED VALVE. STICKING. ENGINE VIBRATION ABOVE IDLE, ACRID SMELL IN CABIN. ENGINE WAS BORESCOPED WITH NO DISCREPANCY FOUND. MAINTENANCE FOUND BLEED AIR VALVE STICKING AND REPOSITIONED - [SDR N93A20061221](https://openairdocs.org/sdr/N93A20061221), Dec 21, 2006: CONTACTOR. FAULTY. ACRID SMELL IN COCKPIT DURING PREFLIGHT. MAINTENANCE DETERMINED ODOR WAS FAULTY AC CONTACTOR. - [SDR 65810262006](https://openairdocs.org/sdr/65810262006), Oct 26, 2006: STEERING SYS. FAILED. NOSE WHEEL STEERING FAIL CASS MESSAGE AS AIRCRAFT LINED UP FOR TAKEOFF. - [SDR 658100606](https://openairdocs.org/sdr/658100606), Oct 6, 2006: PROBE. MALFUNCTIONED. AFTER TAKEOFF CREW RECEIVED STICK SHAKER FAIL AND NR 2 AOA PROBE FAIL MESSAGES. - [SDR 65811122005](https://openairdocs.org/sdr/65811122005), Nov 12, 2005: WINDSHIELD. CRACKED. CO PILOTS WINDSHIELD CRACKED IN FLIGHT. - [SDR 658-110405](https://openairdocs.org/sdr/658-110405), Nov 4, 2005: WINDSHIELD. BROKEN. LEFT WINDSHIELD SHATTERED DURING FLIGHT. ## 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.