# N502QS: 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: 680A0147 - Year built: 2018 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: August 7, 2018 - Certificate issued: June 1, 2026 - Expires: June 30, 2033 - Mode S code: A642CD - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=502QS - Page: https://openairdocs.org/aircraft/N502QS 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 N502QS. ## FAA accident and incident reports None matched to N502QS. ## Service difficulty reports (12) 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 DXTA2026061108379](https://openairdocs.org/sdr/DXTA2026061108379), Jun 8, 2026: ACTUATOR. DEFECTIVE. ON DESCENT RECEIVED AMBER CAS AP TRIM STAB FAIL. RAND QRH. ONCE AP DISCONNECTED HAD PUSHING FORCE (NOSE DOWN) ON CONTROLS. MANUAL TRIM WORKED. LANDED. AP SYSTEM - [SDR DXTA2026040707527](https://openairdocs.org/sdr/DXTA2026040707527), Apr 3, 2026: SWITCH. FAULTED. CLOSED THE CABIN DOOR BUT THE DOOR OPEN - YELLOW LIGHT WOULD NOT GO AWAY AND IT WOULD NOT MAKE THE CLICK SOUND. CHECKLIST SAYS TO PRESS AND HOLD CANCEL BUTTON O - [SDR DXTA2026010906457](https://openairdocs.org/sdr/DXTA2026010906457), Jan 5, 2026: RUDDER PEDAL. BINDING. DURING TAXI, NOTICED RUDDER PEDDLES FELT TIGHT, BOTH SIDES WHEN TRYING TO STEER, BOTH DIRECTIONS. CONTIN TAXI & HELD SHORT OF RUNWAY & PRESSED AP/TRIM/NWS DISC - [SDR DXTA2025082904738](https://openairdocs.org/sdr/DXTA2025082904738), Aug 27, 2025: WARNING MESSAGE. FALSE ACTIVATION. AT THE FINAL APPROACH FIX SELECTED FLAPS FULL. WITH FLAPS ALMOST INDICATING FULL THE INDICATION WENT YELLOW AND RECEIVED THE FLAPS FAIL CAUTION. CHECKED FLAP LE - [SDR 2025FA0000221](https://openairdocs.org/sdr/2025FA0000221), Mar 30, 2025: SKIN. DEBONDED. LH UPPER WING STRINGER 8 (P/N 6922470-5) WAS FOUND TO BE DEBONDED FROM THE LH UPPER WING SKIN (P/N 7422087-1) AND UPPER OUTBD AFT WAFFLE DOUBLER (P/N 6922387-5) - [SDR 2025FA0000220](https://openairdocs.org/sdr/2025FA0000220), Mar 30, 2025: SKIN. DEBONDED. DISBONDS ON THE UPPER WINGS BETWEEN THE OUTBOARD END OF THE STRINGERS AND THE COMMON SKIN DOUBLERS. THE SKIN AND COMMON DOUBLERS MAY ALSO EXHIBIT A GRADUAL DEVI - [SDR DXTA2023080292110](https://openairdocs.org/sdr/DXTA2023080292110), Aug 2, 2023: WINDSHIELD. UNKNOWN. CAPTAIN COCKPIT WINDOW: DESCENDING THRU 8,000 FEET, THE LEFT SIDE WINDOW CRACKED. R/R PILOT SIDE WINDOW IAW CE680A AMM 56-10-05. - [SDR DXTA2022120775720](https://openairdocs.org/sdr/DXTA2022120775720), Dec 7, 2022: BATTERY PACK. INOPERATIVE. ON PREFLIGHT EMERGENCY LIGHTS ARE NOT WORKING, OVERHEAD LIGHTS SEATS 3 & 7, EXTERIOR EMERGENCY LIGHTS, EVACUATION PATH LIGHTING UNDER SEATS 3, 5, & 8. REMOVED N - [SDR DXTA2022072566540](https://openairdocs.org/sdr/DXTA2022072566540), Jul 22, 2022: TRANSMITTER. DEFECTIVE. RIGHT ENGINE ZERO OIL PRESSURE INFLIGHT 70 MINUTES INTO FLIGHT AT FL410. RED OIL PRESSURE LOW R CAS. SHUTDOWN ENGINE PER CHECKLIST (J2) AND LANDED UNEVENTFULLY. - [SDR DXTA2021021004703](https://openairdocs.org/sdr/DXTA2021021004703), Feb 9, 2021: BATTERY PACK. NO TEST. EMERGENCY LIGHTING: DURING PREFLIGHT EMER LIGHTS CHECK. THE WING EXTERIOR OVERWING LIGHT, SEATS 5AND 8 FLOOR LIGHTS AND SEAT 7 OVERHEAD EMER LIGHTS NOT WORKING. - [SDR DXTA2021012604642](https://openairdocs.org/sdr/DXTA2021012604642), Jan 26, 2021: INTERFACE UNIT. MALFUNCTIONED. IN FLIGHT, RECEIVED A PRESSURIZATION CONTROL FAULT AMBER CAS MESSAGE. WHILE RUNNING THE CHECKLIST, VENTS BLEW FULL COLD, FULL HOT, AND THEN A CABIN PRESSURIZATI - [SDR DXTA2019030402107](https://openairdocs.org/sdr/DXTA2019030402107), Mar 4, 2019: WARNING SYSTEM. FALSE ACTIVATION. GEAR DISAGREE R AMBER CAS ILLUMINATED - AFTER GEAR RETRACTION CAS ILLUMINATED WITH AMBER BOX WITH DIAGONAL LINES THROUGH IT FOR THE RIGHT GEAR INDICATION. QRH W ## Service difficulty reports on N502QS not matched to an aircraft (21) They name N502QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR GR4R201610290014](https://openairdocs.org/sdr/GR4R201610290014), Oct 29, 2016: STOP FITTING. BROKEN. LT ELEVATOR I/B STOP IS BROKEN. - [SDR GR4R201610290013](https://openairdocs.org/sdr/GR4R201610290013), Oct 29, 2016: HINGE FITTING. CRACKED. AT NR 3 HINGE O/B FITTING IS CRACKED. - [SDR GR4R201610290012](https://openairdocs.org/sdr/GR4R201610290012), Oct 29, 2016: HINGE FITTING. CRACKED. AT NR 3 HINGE I/B FITTING IS CRACKED. - [SDR GR4R201610290011](https://openairdocs.org/sdr/GR4R201610290011), Oct 29, 2016: HINGE FITTING. CRACKED. AT NR 4 HINGE I/B FITTING IS CRACKED. - [SDR GR4R201610290010](https://openairdocs.org/sdr/GR4R201610290010), Oct 29, 2016: HINGE FITTING. CRACKED. AT NR 4 HINGE I/B FITTING IS CRACKED. - [SDR GR4R201610290009](https://openairdocs.org/sdr/GR4R201610290009), Oct 29, 2016: STOP FITTING. CHAFED. I/B STOP HAS DEEP RUB MARK AND SIGNS OF ARCHING. - [SDR GR4R201610290008](https://openairdocs.org/sdr/GR4R201610290008), Oct 29, 2016: LUG. CORRODED. LEFT INBOARD PIVOT LUG ON THE HORIZONTAL STABILIZER HAS AN AREA OF PITTING AT THE 12 O'CLOCK POSITION. - [SDR GR4R201610290007](https://openairdocs.org/sdr/GR4R201610290007), Oct 29, 2016: FITTING. CRACKED. RT HORIZONTAL STABILIZER RUB BLOCK FITTING CRACKED. - [SDR GR4R201610290006](https://openairdocs.org/sdr/GR4R201610290006), Oct 29, 2016: FITTING. CRACKED. LT HORIZONTAL STABILIZER RUB BLOCK FITTING CRACKED. - [SDR GR4R201610290005](https://openairdocs.org/sdr/GR4R201610290005), Oct 29, 2016: FRAME. CORRODED. FRAMES AT FS 632.00, 684.00 AND 707.00 UNDER WING TO BODY FAIRING 196AB HAS EXTENSIVE CORROSION. - [SDR GR4R201610290004](https://openairdocs.org/sdr/GR4R201610290004), Oct 29, 2016: FRAME. CORRODED. FRAME AT FS 674.00 UNDER WING TO BODY FAIRING 196AB HAS CORROSION. - [SDR GR4R201610290003](https://openairdocs.org/sdr/GR4R201610290003), Oct 29, 2016: FRAME. CORRODED. FRAME AT FS 660.00 UNDER WING TO BODY FAIRING 196AB HAS CORROSION. - [SDR GR4R201610290002](https://openairdocs.org/sdr/GR4R201610290002), Oct 29, 2016: SKIN. CORRODED. RIGHT HORIZONTAL TRAILING EDGE LOWER SKIN UPPER SURFACE HAS CORROSION AT COVE PANEL FLANGES. - [SDR GR4R201610290001](https://openairdocs.org/sdr/GR4R201610290001), Oct 29, 2016: SKIN. CORRODED. LEFT HORIZONTAL TRAILING EDGE LOWER SKIN UPPER SURFACE HAS CORROSION AT COVE PANEL FLANGES. - [SDR GR4R201610280005](https://openairdocs.org/sdr/GR4R201610280005), Oct 28, 2016: BEAM. CHAFED. LT ENGINE FORWARD CRANE BEAM HAS A CHAFE .1670 LONG X .0860 WIDE X .0420 DEEP, AT LOWER EDGE FROM STEEL BRAIDED DRAIN LINE. - [SDR GR4R201610280004](https://openairdocs.org/sdr/GR4R201610280004), Oct 28, 2016: ANGLE. CRACKED. FORWARD LOWER INBOARD CORNER OF APU ENCLOSURE HAS CRACKED SUPPORT RIB ON INBOARD WALL. - [SDR GR4R201610280002](https://openairdocs.org/sdr/GR4R201610280002), Oct 28, 2016: SEAT TRACK. CORRODED. ON SEAT TRACK LBL 6, AFT OF BS 456.5 HAS CORROSION - [SDR DXTA2013032505332](https://openairdocs.org/sdr/DXTA2013032505332), Mar 23, 2013: UPLOCK SWITCH. OUT OF ADJUST. ON TAKEOFF WITH GEAR HANDLE UP, GREEN GEAR INDICATIONS LIGHTS WENT OUT, BUT RED LIGHT IN THE GEAR HANDLE REMAINED ILLUMINATED, FOLLOWED SHORTLY BY AMBER CAS MES - [SDR 2012F00260](https://openairdocs.org/sdr/2012F00260), Nov 26, 2012: SPIGOT. CORRODED. RT HORIZONTAL STAB SPIGOT FITTING CORRODED. - [SDR N93A25122007](https://openairdocs.org/sdr/N93A25122007), Dec 25, 2007: STEERING SYS. FAILED. DURING GEAR EXTENSION, STEER BY WIRE FAIL MESSAGE ILLUMINATED. NO STEERING ON LANDING. - [SDR 601122305](https://openairdocs.org/sdr/601122305), Dec 23, 2005: WINDSHIELD. CRACKED. LT WINDSHIELD CRACKED 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.