# N638QS: 2022 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: 680A0330 - Year built: 2022 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: December 14, 2022 - Certificate issued: July 9, 2026 - Expires: July 31, 2033 - Mode S code: A85CE3 - Owner type: Co-owned - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=638QS - Page: https://openairdocs.org/aircraft/N638QS 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 N638QS. ## FAA accident and incident reports None matched to N638QS. ## Reports on N638QS not matched to an aircraft (1) They name N638QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [Incident 20081123856519I](https://openairdocs.org/incident/20081123856519I), Nov 23, 2008: Cessna 560XL (N638QS), West Palm Beac, FL, No damage. (-23) On November 23, 2008, aircraft N638QS, serial number 560-5363 diverted into the west Palm beach international (pbi) airport due to a jammed elevator trim… ## 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 DXTA2025040402939](https://openairdocs.org/sdr/DXTA2025040402939), Apr 3, 2025: BATTERY. INOPERATIVE. EMERGENCY LIGHTING BATTERY POWERING EMERGENCY EXIT SIGN BEHIND SEAT 7 AND EXIT SIGN UNDER LAVATORY SEAT TAKES CHARGE, BUT APPEARS TO LOSE IT QUICKLY. EXTERIOR E - [SDR DXTA2024100700769](https://openairdocs.org/sdr/DXTA2024100700769), Oct 6, 2024: LATCH. UNSECURE. NOSE DOOR OPEN L AMBER CAS: ON CLIMBOUT AT 250 KNOTS WE GOT THE AMBER CAS MESSAGE FOR LEFT NOSE DOOR. WE FOLLOWED QRH AND LANDED BACK AT INDY. UPON LANDING WE S - [SDR DXTA2024092200611](https://openairdocs.org/sdr/DXTA2024092200611), Sep 20, 2024: RUB BLOCK. OUT OF LIMITS. WHEN ARRIVING AT THE AIRCRAFT FOR THE FIRST TIME AFTER PULLING THE MAIN CABIN DOOR HANDLE THE DOOR ONLY OPENS SLIGHTLY. BY PULLING DOWN ON THE HANDLE AGGRESSIVE - [SDR DXTA2024010810550](https://openairdocs.org/sdr/DXTA2024010810550), Jan 7, 2024: PCB. FAILED. DOOR WOULD NOT RETRACT OR RESET ELECTRICALLY, WE HAD DOOR LIFTED FROM OUTSIDE MOTOR SIDE STRUT THEN ELBOW BENT, CANNOT CLOSE DOOR. INSPECTED DOOR, REMOVED AND R - [SDR DXTA2023101898200](https://openairdocs.org/sdr/DXTA2023101898200), Oct 17, 2023: GENERATOR. FAULTED. WINDSHIELD HEAT INOP L AMBER CAS MESSAGE ILLUMINATED, FOLLOWED BY (5 MIN) BY FIRE DETECT L, FOLLOWED BY (5 MIN) HYD VOL LOW FOLLOWED BY HYD PRESS LOW R L . FOLL - [SDR DXTA2023082293640](https://openairdocs.org/sdr/DXTA2023082293640), Aug 22, 2023: UNKNOWN. UNKNOWN. MAIN DOOR HANDLE: MAIN CABIN DOOR HANDLE WILL NOT MOVE INSIDE OR OUTSIDE. THE RED BUTTON WILL DEPRESS, BUT THE HANDLE WILL NOT MOVE. ADJUSTED DOOR LINKAGE IAW C ## Service difficulty reports on N638QS not matched to an aircraft (14) They name N638QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR DXTA2016022606190](https://openairdocs.org/sdr/DXTA2016022606190), Feb 4, 2016: ENGINE. UNSERVICEABLE. CLIMBING THROUGH 11,000', THE MASTER WARNING LIGHT FLASHED & THE RT LOW OIL PRESS ANNUNCIATOR ILLUMINATED. THE RT OIL PRESS TAPE WAS AT ZERO, LESS THAN 5 SECOND - [SDR DXTA2014091905887](https://openairdocs.org/sdr/DXTA2014091905887), Sep 18, 2014: STARTER GEN. MALFUNCTIONED. WHILE LOADING PAX AND BAGS WE NOTICED AN UNUSUAL NOISE COMING FROM THE APU AREA. IT SOUNDED LIKE A VERY LOUD VACUUM CLEANER CYCLING OFF AND ON EVERY 5 TO 15 SEC - [SDR DXTA2014061205800](https://openairdocs.org/sdr/DXTA2014061205800), Jun 11, 2014: OIL SYSTEM. LEAKING. DURING APU STARTUP, SMOKE ENTERED CABIN THROUGH WEMACS. SHUTDOWN APU. RAN APU, STILL HAD HEAVY SMOKE IN CABIN. FOUND APU INLET TO BE COATED WITH OIL. OIL FLUID - [SDR DXTA2013060505411](https://openairdocs.org/sdr/DXTA2013060505411), Jun 4, 2013: OIL SYSTEM. OVERSERVICED. DURING THE ATTEMPTED APU START, HEAVY SMOKE WAS OBSERVED BLOWING FORWARD (ACFT WAS PARKED WITH A TAIL WIND) AND AN OILY ODOR WAS PRESENT IN CABIN. OIL COULD ALS - [SDR DXTA2012092005128](https://openairdocs.org/sdr/DXTA2012092005128), Sep 19, 2012: UNKNOWN. ODOR. DURING ENGINE START UP, ENCOUNTERED SMOKE IN CABIN. THE APU WAS RUNNING ALONG WITH THE BLEED AIR. INITIALLY SHUT THE BLEED AIR OFF TO THE APU FOR THE PASSENGER - [SDR CWQR20120330021](https://openairdocs.org/sdr/CWQR20120330021), Mar 30, 2012: CONTROL CABLE. FRAYED. DURING A SCHEDULED INSPECTION, THE ELEVATOR TRIM CABLE WAS FOUND TO BE FRAYED BEYOND LIMITS. THIS CABLE ASSY IS LOCATED WHERE THE CABLE TRANSITIONS FROM A VERTI - [SDR DXTA2010120104338](https://openairdocs.org/sdr/DXTA2010120104338), Nov 30, 2010: CHECK VALVE. FAILED. UPON GEAR RETRACTION THE "LOW HYD FLO" ANNUNCIATOR RT SIDE ILLUMINATED AND REMAINED ON UNTIL THE GEAR WAS EXTENDED. RAN RT ENGINE SELECTED FLAPS DOWN, OPERATED - [SDR DXTA2010092104248](https://openairdocs.org/sdr/DXTA2010092104248), Sep 20, 2010: RESERVOIR. LOW. RIGHT HYD FLOW LOW DURING TAKEOFF ROLL. ABORTED TAKEOFF, LIGHT EXTINGUISHED AT IDLE POWER. FOUND HYD RESERVOIR LEVEL LOW. SERVICED HYD RESERVOIR TO FULL IAW MM - [SDR DXTA2010030804016](https://openairdocs.org/sdr/DXTA2010030804016), Mar 7, 2010: BRAKE. WEAK. BRAKE PUMP CYCLES ON AND OFF EVERY 5 TO 10 SECONDS. PIC RT BRAKE PEDAL HAS .5 INCH MORE PLAY COMPARED TO LT BRAKE. BRAKES SLIGHTLY MUSHY. PERFORMED BRAKE BLEED - [SDR 2009F00141](https://openairdocs.org/sdr/2009F00141), Dec 23, 2009: WARNING LIGHT. ILLUMINATED. " LOW HYD FLOW R (RT) MASTER CAUTION LIGHT ILLUMINATED IN FLIGHT. - [SDR DXTA2009111303858](https://openairdocs.org/sdr/DXTA2009111303858), Nov 12, 2009: LINE. CHAFED. WHEN BRAKE PRESSURE IS APPLIED TO PEDALS, HISSING NOISE CAN BE HEARD AND FLUID LEAKS OUT OF LT PEDAL ON CO-PILOT SIDE. FOUND LINE CONNECTING TO UPPER PORT FITTI - [SDR DXTA200811233369](https://openairdocs.org/sdr/DXTA200811233369), Nov 23, 2008: ACTUATOR. LACK OF LUBE. WHEN LEVEL AT 41 000 FT EXPERIENCED A (JAMMED ELEVATOR TRIM) (NO ELECTRIC OR MANUAL TRIM FORE/AFT) AFTER APPROX 20 MIN AND AT 10 000 FT TRIM MANUAL AND ELECTRIC - [SDR DXTA2008112403369](https://openairdocs.org/sdr/DXTA2008112403369), Nov 23, 2008: ELEVATOR. JAMMED. WHEN LEVEL AT 41,000 FT EXPERIENCED A, JAMMED ELEVATOR TRIM. - [SDR CWQR2006010](https://openairdocs.org/sdr/CWQR2006010), Apr 27, 2006: FORK. GOUGED. DURING AN INSPECTION FOUND THE NOSE GEAR STEERING LOWER FORK ASSY (5542304-3) GOUGED. FURTHER INVESTIGATION FOUND THE FORK ASSY IS GOUGED ONLY DURING A MAINTENA ## 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.