# N604QS: 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: 680A0160 - Year built: 2018 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: October 23, 2018 - Certificate issued: October 27, 2025 - Expires: October 31, 2032 - Mode S code: A7D78A - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=604QS - Page: https://openairdocs.org/aircraft/N604QS 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 N604QS. ## FAA accident and incident reports None matched to N604QS. ## Service difficulty reports (13) 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 DXTA2025121606142](https://openairdocs.org/sdr/DXTA2025121606142), Dec 14, 2025: LATCH PIN. FAULTED. REPEAT WRITE UP: MAIN CABIN DOOR LOCKING MECHANISM STUCK IN THE UNLOCKED POSITION AND WILL NOT MOVE TO THE LOCKED POSITION. FOUND LOWER FWD LATCH PIN OVER CENTE - [SDR DXTA2025102005373](https://openairdocs.org/sdr/DXTA2025102005373), Oct 19, 2025: PUSHROD. LACK OF LUBE. MAIN DOOR WONT LATCH. RESET PROCEDURE DOES NOT WORK. LUBRICATED PUSHED ROD DECAL ASSEMBLY IA W CE680A AMM 24-00-00 AND USED CE-680A IPC 52-10-10.OPS CHECK GOOD. - [SDR DXTA2025100305162](https://openairdocs.org/sdr/DXTA2025100305162), Oct 1, 2025: DOOR. BINDING. MAIN ENTRY DOOR , WHEN OPENING FROM THE OUTSIDE AND INSIDE , SEEMS TO STICK IN THE CLOSED POSTION. HAVE TO PUSH AND PULL, TO OPEN THE DOOR COMPLETELY. NEEDS EVA - [SDR DXTA2025042503187](https://openairdocs.org/sdr/DXTA2025042503187), Apr 23, 2025: BUTTON. FAULTED. MAIN CABIN DOOR DOES NOT ALWAYS OPEN FROM THE INSIDE. YOU HAVE TO HOLD THE RED UNLOCK BUTTON AND PUSH THE HANDLE DOWN TOWARDS THE CLOSE AND LOCK POSITION AND WI - [SDR DXTA2025020702219](https://openairdocs.org/sdr/DXTA2025020702219), Feb 3, 2025: CONNECTOR. NOT SEATED. LAV EMERG LIGHT: KICKPLATE EMERGENCY LIGHT BELOW LAV IS INOP ON EMER BATTERY AND WITH SHIP POWER. MOVED EMER LIGHTS SWITCH TO ON, CONFIRMED DISCREPANCY. PUT SWI - [SDR DXTA2025010801843](https://openairdocs.org/sdr/DXTA2025010801843), Jan 5, 2025: BATTERY. DEFECTIVE. REPEAT WRITEUP. ON INITIAL EMER LIGHT TEST, EXIT SIGN BENEATH LAV, OVERHEAD LIGHT IN LAV, EXIT SIGN ABOVE SEAT 7, AND OVERHEAD LIGHT ABOVE SEAT 10 FAILED TO ILL - [SDR DXTA2024123101761](https://openairdocs.org/sdr/DXTA2024123101761), Dec 29, 2024: FUSE. BLOWN. EMERGENCY LIGHTS OVER THE LAV AND BY YOUR FEET ON THE LAV AND THE EXIT SIGN BEHIND SEAT 7 FAILED PREFLIGHT TEST (ARMED AND BATTERIES OFF). PERFORMED QRH PROCEDU - [SDR DXTA2023042184650](https://openairdocs.org/sdr/DXTA2023042184650), Apr 20, 2023: UNKNOWN. UNKNOWN. MAIN EXIT EMERGENCY EXIT LIGHT WILL NOT EXTINGUISH WITH POWER OFF. GAINED ACCESS TO IN #1 EMER LIGHTING INERTIA SWITCH AND RESET SWITCH. PERFORMED OPERATIONAL C - [SDR 2022F00206](https://openairdocs.org/sdr/2022F00206), May 4, 2022: NONE. CHAFED. CHAFE DAMAGE ON THE LEFT MLG SIDE-BRACE FITTING 6922928-1. ACCOMPLISHED TEXTRON AVIATION LETTER DQ34607 REV A DATED MAY 4, 2022; 680A-0160, N604QS, REPAIR RECOM - [SDR 2022F00207](https://openairdocs.org/sdr/2022F00207), May 4, 2022: NONE. CHAFED. CHAFE DAMAGE ON THE LEFT MLG SIDE-BRACE FITTING 6922928-1. ACCOMPLISHED TEXTRON AVIATION LETTER DQ34607 DATED MAY 1, 2022; 680A-0160, N604QS, REPAIR RECOMMENDAT - [SDR DXTA2021120653070](https://openairdocs.org/sdr/DXTA2021120653070), Dec 5, 2021: NONE. NONE. MAIN DOOR: MAIN CABIN DOOR WILL NOT CLOSE. MOTOR MOVES DOOR UP AND DOWN BUT HANDLE WILL NOT MOVE // SIGNOFF // VERIFIED DISCREPANCY INSPECTED MCD AND FOUND LOWE - [SDR DXTA2021070744810](https://openairdocs.org/sdr/DXTA2021070744810), Jul 6, 2021: LINE. SHEARED. APPROXIMATELY 10 TO 15 MINUTES AFTER DEPARTURE WE GOT A HYD PRESS LOW- R ANNUNCIATOR. FOLLOWED SHORTLY AFTER BY THE HYD VOLUME LOW ANNUNCIATOR THIS WAS FOLLOWED - [SDR DXTA2021041940870](https://openairdocs.org/sdr/DXTA2021041940870), Apr 16, 2021: BEARING. DEFECTIVE. MAIN DOOR: MAIN DOOR ACTUATOR ARM PIN HAS FALLEN OUT OF THE SCISSOR ARM AND DOOR IS UNABLE TO CLOSE. // SIGNOFF // PRESSED OUT UPPER BUSHING AND INSTALLED NEW B ## Service difficulty reports on N604QS not matched to an aircraft (26) They name N604QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR DXTA2016010806156](https://openairdocs.org/sdr/DXTA2016010806156), Jan 7, 2016: VENT. OBSTRUCTED. DURING POST FLIGHT, ALL EXTERNAL LIGHTS WERE SHUT DOWN WHILE WALKING AROUND THE ACFT DOING THE LIGHT CHECK. WHEN WALKING INTO THE AIRPLANE, THERE WAS A NOTICEAB - [SDR DXTA2015052906023](https://openairdocs.org/sdr/DXTA2015052906023), May 28, 2015: TRANSDUCER. FAILED. DURING TAXIING IN, USING LEFT BRAKE PRESSURE TO TURN LEFT, PEDAL PRESSURE WAS FELT, BUT NO BRAKE ACTION OCCURRED. WITHOUT WARNING, FULL BRAKE ACTION OCCURRED & - [SDR DXTA201504136003](https://openairdocs.org/sdr/DXTA201504136003), Apr 10, 2015: BRAKE SYS. FAILED. THE LT BRAKE FAILED ON TAXI OUT. BRAKE PEDAL WAS FIRM BUT BRAKE WAS STILL INOPERATIVE. BRAKE RESERVOIR IS FULL & ALL BRAKE ACCUMULATORS ARE IN LIMITS. ALSO THER - [SDR CWQD201408042](https://openairdocs.org/sdr/CWQD201408042), Aug 4, 2014: BELLCRANK. WORN. DURING TROUBLESHOOTING OF A STEERING KNOCKING SOUND, FOUND THE BOLT THAT ATTACHES THE CABLE TO THE STEERING BELLCRANK WAS ROCKING IN THE BELLCRANK. AFTER REMOVA - [SDR DXTA2013082605486](https://openairdocs.org/sdr/DXTA2013082605486), Aug 25, 2013: ANTI-SKID SYS. MALFUNCTIONED. NORMAL BRAKING DURING TAXI OUT AND LANDING ROLL INCLUDING LT TURNS. WHEN MAKING LEFT TURNS AT TAXI SPEED, PILOT EXPERIENCED HARD PEDALS AND HAD NO BRAKES FOR 5- - [SDR DXTA2013050805386](https://openairdocs.org/sdr/DXTA2013050805386), Apr 5, 2013: RING ASSEMBLY. UNSERVICEABLE. PERFORMED BORESCOPE INSPECTION OF COMBUSTION CHAMBER LINER COOLING RING SEGMENT SELF LOCKING NUTS. FOUND TWO NUTS MISSING AT THIS TIME AT POSITION NR 1 & NR 18. - [SDR DXTA2012072305055](https://openairdocs.org/sdr/DXTA2012072305055), Jul 20, 2012: DUCT. CONTAMINATED. CREW ENCOUNTERED STRONG COCKPIT ODOR ALL PHASES OF FLIGHT, SMELLS LIKE BURNING RUBBER AND BURNED TOAST IN THE COCKPIT. COULD NOT IDENTIFY THE PROBLEM. REMOVED & - [SDR DXTA2012061504997](https://openairdocs.org/sdr/DXTA2012061504997), Jun 14, 2012: FAN. ODOR. CLIMBING THROUGH FL 210, CREW ENCOUNTERED AN STRONG ODOR. ODOR SEEMED TO CYCLE -A 2-3 MINUTE CYCLE -IN INTENSITY. SEEMED TO BE ISOLATED TO COCKPIT. ODOR LESSENE - [SDR DXTA2012042504958](https://openairdocs.org/sdr/DXTA2012042504958), Apr 24, 2012: ENGINE. BIRD INGESTION. AT FL390 IN CRUISE. RUBBER ODOR LIKE A BURNING TENNIS SHOE. AFTER 5 MINUTES EYES BEGAN TO BURN. NO SMOKE BUT THE BURNING ODOR WAS MODERATE TO STRONG. ADJUSTED C - [SDR DXTA2012021004868](https://openairdocs.org/sdr/DXTA2012021004868), Feb 9, 2012: BRAKE SYS. MALFUNCTIONED. BRAKES CHECKED NORMAL ON TAXI OUT. WHILE TAXIING & STOPPING AT HOLD SHORT LINE, LT BRAKE FAILED. FURTHER TAXIING REVEALED THAT WITH LIGHT PRESSURE APPLIED TO BR - [SDR DXTR20111214401](https://openairdocs.org/sdr/DXTR20111214401), Dec 14, 2011: ATTACH FITTING. WORN. THE FWD AND AFT HORIZONTAL STAB ATTACH POINTS ARE WORN, ALLOWING HORIZONTAL STAB MOVEMENT BOTH RADIALLY AND UP AND DOWN. THIS MOVEMENT HAS PLAY IN THE HORIZONTA - [SDR DXTR2011121400000](https://openairdocs.org/sdr/DXTR2011121400000), Dec 14, 2011: HYDRAULIC LINE. CHAFED. COPILOTS RT RUDDER PEDAL IS CHAFING ON LT HYDRAULIC BRAKE LINE AT FORWARD BULKHEAD. - [SDR 2011FA0000778](https://openairdocs.org/sdr/2011FA0000778), Dec 8, 2011: BRACKET. CRACKED. DURING A ROUTINE PHASE A/B INSPECTION, TECHS DISCOVERED THAT THE AUTOPILOT RUDDER CABLE BRACKET LOCATED AFT OF THE CANTED BULKHEAD HAS A 1" CRACK AT THE BASE OF - [SDR DXTA2011032804525](https://openairdocs.org/sdr/DXTA2011032804525), Mar 25, 2011: WARNING LIGHT. ILLUMINATED. CLIMBING THROUGH FL280, THE RIGHT ENGINE THRUST REVERSER UNLOCK LIGHT ILLUMINATED. THE EMERGENCY STOW SWITCH WAS SELECTED AND THE UNLOCK LIGHT EXTINGUISHED. A M - [SDR DXTA2010072604178](https://openairdocs.org/sdr/DXTA2010072604178), Jul 23, 2010: CONTROL CABLE. FAILED. DURING PREFLT, HEARD A GRINDING NOISE WHEN DEPRESSING RUDDER PEDALS. ATTEMPTED 1 DEFLECTION OF RUDDER PEDALS IN EACH DIRECTION TO INVESTIGATE. UPON DEPRESSING R - [SDR DXTA2010072004163](https://openairdocs.org/sdr/DXTA2010072004163), Jul 19, 2010: WIRE. SHORTED. NO BRAKES - POWER BRAKE MOTOR NOT WORKING. LOW BREAK PRESSURE ANNUNCIATOR STAYS ILLUMINATED. TROUBLESHOT & FOUND POWER COMING INTO BRAKE CONTROL MOTOR RELAY KNO - [SDR DXTA2009120103875](https://openairdocs.org/sdr/DXTA2009120103875), Nov 30, 2009: BRAKE SYS. WEAK. LT AND RT SIDE BRAKE PEDALS ARE NOT BRAKING NORMAL. WITH VERY LITTLE PRESSURE THE BRAKES WANT TO LOCK. INSPECTED BRAKES WITH NO FAULTS FOUND. PERFORMED COMPLETE - [SDR DXTA2009111303857](https://openairdocs.org/sdr/DXTA2009111303857), Nov 12, 2009: PRESSURE SWITCH. INOPERATIVE. ON CLIMBOUT OF PBI LEFT FUEL LOW PRESSURE LIGHT CAME ON INTERMITTENTLY FOLLOW BY A STEADY LT FUEL BOOST PUMP LIGHT ON. THEN A MASTER CAUTION CAME ON FLASHING. F - [SDR DXTA20082930](https://openairdocs.org/sdr/DXTA20082930), Mar 11, 2008: MASTER CYLINDER. FAILED. DURING TAXI, NO BRAKE FUNCTION UNTIL MAXIMUM PRESSURE IS APPLIED AND THEN LT BRAKE LOCKS. REPLACED CAPTAINS LEFT BRAKE MASTER CYL WITH NEW UNIT AND BLEED SYSTEM - [SDR DXTA200702279](https://openairdocs.org/sdr/DXTA200702279), Jun 19, 2007: LANDING GEAR. MALFUNCTIONED. WHEN GEAR SELECTED DOWN, LT MAIN GEAR DID NOT SHOW GREEN LIGHT. WENT TO GEAR WOULD NOT EXTEND CK LIST AND BLEW GEAR DOWN. UNEVENTFUL LANDING. [07-11-07] TROUBLE - [SDR DXTA200702058](https://openairdocs.org/sdr/DXTA200702058), Mar 31, 2007: CONTROL CABLE. OUT OF ADJUST. AIRCRAFT WILL NOT FLY LEVEL IN FLIGHT AFTER AILERON RIGGING WITH CONTROLS CENTERED. ADJUSTED AILERON WING AND FAIRING CABLE TENSION AND RIG IAW 560XL MM 27-10-0 - [SDR DXTA200501064](https://openairdocs.org/sdr/DXTA200501064), Nov 6, 2005: WARNING LIGHT. ILLUMINATED. DURING TAKEOFF ROLL, LEFT EEC LIGHT ILLUMINATED PRIOR TO 70 KTS. DEFERRED IAW NJA CE560XL MEL. MEL 73-3. ITEM IS UNDER INVESTIGATION. - [SDR DXTA200500936](https://openairdocs.org/sdr/DXTA200500936), Aug 29, 2005: O-RING. MALFUNCTIONED. LEFT FUEL BYPASS ANNUNCIATOR (AMBER) ILLUMINATED ON TAKEOFF ROLL. REMOVED AND REPLACED LT FUEL FILTER AND O-RING'S IAW PWA MM 545A MAINTENANCE MANUAL. RAN A/C L - [SDR DXTA200500583](https://openairdocs.org/sdr/DXTA200500583), Feb 11, 2005: HANDLE. INOPERATIVE. AFTER TAKEOFF GEAR HANDLE WOULD NOT MOVE, THEREFORE COULD NOT RETRACT THE GEAR. ITEM IS UNDER INVESTIGATION. - [SDR DXTA200500523](https://openairdocs.org/sdr/DXTA200500523), Jan 10, 2005: PEDAL. DAMAGED. PILOTS LEFT BRAKE PEDAL WENT TO FLOOR ON LANDING ROLL. CO-PILOTS BRAKES WORKED FINE. ITEM IS UNDER INVESTIGATION. - [SDR DXTA200500511](https://openairdocs.org/sdr/DXTA200500511), Jan 3, 2005: MASTER CYLINDER. MALFUNCTIONED. LEFT BRAKE PEDAL ON LEFT SIDE GOES ALL THE WAY DOWN WHEN BRAKES APPLIED. TROUBLESHOT LEFT BRAKE TO MASTER CYLINDER. REMOVED AND REPLACED PILOT'S LT WHEEL BRAKE ## 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.