# N603QS: 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: 680A0159 - Year built: 2018 - Type: Fixed wing multi engine - Engine type: Turbo-fan - Airworthiness: Standard, transport - Airworthiness date: November 6, 2018 - Certificate issued: September 14, 2026 - Expires: September 30, 2033 - Mode S code: A7D3D3 - Owner type: Co-owned, fractional ownership - FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=603QS - Page: https://openairdocs.org/aircraft/N603QS 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 N603QS. ## FAA accident and incident reports None matched to N603QS. ## Service difficulty reports (15) 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 DXTA2026082109343](https://openairdocs.org/sdr/DXTA2026082109343), Aug 20, 2026: BATTERY PACK. INOPERATIVE. EMERGENCY EXIT SIGN ON FRONT OF LAV SEAT WILL NOT LIGHT UP. REMOVED SWITCH (P/N A3-201-02/M) REPLACED WITH A CUSTOMER SUPPLY NEW SWITCH STAND BY POWER. (P/N A3- - [SDR DXTA2025111705680](https://openairdocs.org/sdr/DXTA2025111705680), Nov 13, 2025: DOOR SEAL. LEAKING. HIGH PITCHED WHISTLE COMING FROM THE MAIN CABIN DOOR CLIMBING FROM 7,000 - 9000 FT AND DESCENDING FROM 6100 - 5300 FT. TROUBLESHOT DISCREPANCY FOUND THE DOOR SE - [SDR DXTA2025022602463](https://openairdocs.org/sdr/DXTA2025022602463), Feb 22, 2025: BATTERY PACK. INOPERATIVE. EMERGENCY LIGHT IN BULKHEAD BY LAV AND IN FRONT OF LAV INOP. ALL OTHER EMERGENCY LIGHTS OPERATIVE. CHARGED BATTERY PACK 30-45 AND LIGHTS STILL INOP. O PROCEDURE - [SDR DXTA2024121001414](https://openairdocs.org/sdr/DXTA2024121001414), Dec 6, 2024: BATTERY. INOPERATIVE. SEAT 10 AND 2 FORWARD LIGHTS BY ENTRY DOOR DO NOT CHECK AFTER PERFORMING AFM RECHARGE PROCEDURE REMOVED INOP BATTERY AND REPLACED WITH NEW. OPS CHECK GOOD REF A - [SDR DXTA2024120601406](https://openairdocs.org/sdr/DXTA2024120601406), Dec 5, 2024: NONE. NONE. CABIN EMERG LIGHT: EMERGENCY LIGHT BELOW SEAT 10, EXIT LIGHTS LOWER PORTION OF ENTRY DOOR INOP. DID AFM PROCEDURE AND STILL NOT WORKING CORRECTIVE ACTION; OPS C - [SDR DXTA2024120501378](https://openairdocs.org/sdr/DXTA2024120501378), Dec 2, 2024: PROXIMITY SWITCH. FAULTED. NOSE DOOR OPEN L AMBER CAS MESSAGE ILLUMINATED IN FLIGHT CLIMBING THROUGH 15,000FT. ADJUSTED PROX SWITCH RIGGING OF LH AFT LOWER NOSE DOOR. REF. CE-680A AMM 52- - [SDR DXTA2024100700760](https://openairdocs.org/sdr/DXTA2024100700760), Oct 4, 2024: LIGHT. INOPERATIVE. LAV EMERG LIGHT: EMERGENCY LIGHT UNDER THE LAV IS INOP. CORRECTIVE ACTION: REPLACED LAV EMERGENCY TOEKICK LIGHT AT FRONT OF LOWER TOILET FACE PANEL WITH NEW. MX - [SDR DXTA2024072412453](https://openairdocs.org/sdr/DXTA2024072412453), Jul 24, 2024: BATTERY. INOPERATIVE. CABIN EMERG LIGHT: SEAT 3 LIGHT AND RIGHT SIDE EXTERIOR EMERGENCY LIGHTS DID NOT ILLUMINATE DURING PREFLIGHT CHECK. WE RAN TWO 30 MIN CHARGING CYCLES AND THE FA - [SDR DXTA2024041611487](https://openairdocs.org/sdr/DXTA2024041611487), Apr 16, 2024: LIGHT. DEFECTIVE. LAV EXIT SIGN/LIGHT: RED EXIT SIGN ON LAVATORY PANEL IS INOPERATIVE. ALL OTHER EMERGENCY LIGHTS ILLUMINATE. REMOVED INOP LAY EXIT LIGHT SIGN P/N 9919055-2 S/N 1 - [SDR DXTA2024040911445](https://openairdocs.org/sdr/DXTA2024040911445), Apr 8, 2024: DOWNLOCK SWITCH. FAILED. AFTER GEAR RETRACTION, RECEIVED AMBER GEAR DISAGREE N CAS WITH AMBER DN. FOLLOWED ABNORMAL PROCEDURE AND EXTENDED LANDING GEAR. LANDED AS SOON AS PRACTICAL AT K - [SDR DXTA2023061288490](https://openairdocs.org/sdr/DXTA2023061288490), Jun 12, 2023: UNKNOWN. UNKNOWN. EMERGENCY LIGHT INOPERATIVE AT SEAT 6. OPERATIONAL CHECK PERFORMED WITH NO FAULTS FOUND IAW MM 33-50-00. - [SDR CNQR2022102000001](https://openairdocs.org/sdr/CNQR2022102000001), Oct 20, 2022: ACCESS PANEL. ELONGATED. 680A-0159 STAB ACCESS PANEL DOUBLER DAMAGE. HOLE ELONGATED. REPAIRED PER TEXTRON AVIATION ENGINEERING MEMO DQ36719M1DATED 10/12/2022. - [SDR DXTA2022011054950](https://openairdocs.org/sdr/DXTA2022011054950), Jan 8, 2022: LIGHT. DEFECTIVE. CABIN EMERG LIGHT: OVERHEAD EMERGENCY LIGHT REAR LEFT OVER SEAT 7 INOP. // SIGNOFF// TROUBLESHOT TO DEFECTIVE READING UGHT ASSEMBLY. PART ON ORDER.REMOVED LEFT - [SDR DXTA2021080246130](https://openairdocs.org/sdr/DXTA2021080246130), Jul 31, 2021: LIGHT. UNKNOWN. CABIN EMERG LIGHT: EMERGENCY LIGHT OVER SEAT 7 AND TOILET WERE INOPERABLE WITH INITIAL TEST OF EMER LIGHTING SYSTEM (EMER LIGHT SWITCH TO ARM, WITH BATTERIES IN - [SDR DXTA2019112603121](https://openairdocs.org/sdr/DXTA2019112603121), Nov 26, 2019: MANIFOLD. DEFECTIVE. ALL LANDING GEAR RETRACTION DID NOT RETRACT - ON T/O, LANDING GEAR DID NOT RETRACT. NFP SAID GEAR HANDLE DIDN'T FEEL PROPER ON SELECTING RETRACT. GEAR INDICATOR ## Service difficulty reports on N603QS not matched to an aircraft (34) They name N603QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft. - [SDR DXTA2015111306124](https://openairdocs.org/sdr/DXTA2015111306124), Nov 13, 2015: BEARING. LOOSE. AFTER SELECTING GEAR UP AFTER TAKEOFF THE RED GEAR UNLOCK LIGHT REMAINED ON. STAB MISS COMPARE & HYD PRESS LIGHT REMAINED ON. AFTER EXTENDING GEAR IAW CHECKLIST - [SDR DXTA2014033005703](https://openairdocs.org/sdr/DXTA2014033005703), Mar 28, 2014: UPLOCK SWITCH. OUT OF ADJUST. THE RED LANDING GEAR UNLOCK LIGHT REMAINS ILLUMINATED AFTER TAKEOFF WHEN THE LANDING GEAR HANDLE IS PLACED TO THE UP POSITION. THE LIGHT EXTINGUISHES WHEN THE G - [SDR DXTA2013092505520](https://openairdocs.org/sdr/DXTA2013092505520), Sep 25, 2013: APU. FAILED. DURING PREFLIGHT, HEARD AN EXPLOSIVE BANG FOLLOWED BY A NOISY APU SHUTDOWN AND IMMEDIATE INFLUX OF THICK SMOKE IN THE ACFT'S INTERIOR. REAR BAY HAD NO SMOKE PRE - [SDR DXTA2013053105407](https://openairdocs.org/sdr/DXTA2013053105407), May 31, 2013: SWITCH. FAILED. GEAR UNSAFE LIGHT STAYS ON WITH GEAR HANDLE IN UP POSITION. TROUBLESHOT TO A FAILED AIRSPEED SWITCH. REMOVED AND REPLACED AIRSPEED SWITCH IAW MM 27-40-00. OPS & - [SDR DXTA2013032505338](https://openairdocs.org/sdr/DXTA2013032505338), Mar 23, 2013: SKIN. DENTED. DENT DAMAGE SKIN ASSY. - [SDR DXTA2013032505337](https://openairdocs.org/sdr/DXTA2013032505337), Mar 23, 2013: STRUCTURE. DENTED. VERTICAL STAB LEADING EDGE HAS SEVERAL DENTS. COLD WORKED DENTS IAW SRM 51-40-03. MINOR REPAIR. - [SDR DXTA2013032505336](https://openairdocs.org/sdr/DXTA2013032505336), Mar 23, 2013: DOOR FRAME. GOUGED. EMERGENCY EXIT OPENING HAS TWO GOUGES IN LOWER AFT RADIUS OF AIRFRAME. PERFORMED ULTRASONIC THICKNESS CHECK ON GOUGED AREAS ON THE EMERGENCY EXIT AFT LOWER RADI - [SDR DXTA2013032505335](https://openairdocs.org/sdr/DXTA2013032505335), Mar 23, 2013: FRAME. CHAFED. FRAME IN MX BAY ABOVE HYD RESERVOIR IS CHAFED BY LP BLEED AIR VALVE. REMOVED LP BLEED AIR VALVE FOR ACCESS TO FRAME. CUT OUT CHAFED SECTION OF FRAME AT BS 479.5 - [SDR DXTA2013012305256](https://openairdocs.org/sdr/DXTA2013012305256), Jan 22, 2013: ACTUATOR. MALFUNCTIONED. AFTER TAKEOFF AND COMPLETING GEAR UP AND FLAPS CALL, WARNING LIGHT ILLUMINATED DUE TO STAB MISCOMPARE, AND HYD PRESSURE LIGHT ILLUMINATED. RED GEAR UNSAFE LIGHT - [SDR DXTA2013012105250](https://openairdocs.org/sdr/DXTA2013012105250), Jan 18, 2013: UPLOCK HOOK. FAILED. AFTER TAKEOFF AND SELECTING GEAR UP, RED "UNSAFE" AND AMBER "HYD PRESS" LIGHT REMAINED ILLUMINATED. AFTER APPROX 1-2 MINUTES A LOUD THUMP WAS HEARD FROM THE LT - [SDR DXTA2013020605273](https://openairdocs.org/sdr/DXTA2013020605273), Jan 10, 2013: UPLOCK SWITCH. FAULTED. ON CLIMB OUT, AFTER LANDING GEAR AND FLAPS WERE UP, RECEIVED AN UNSAFE GEAR INDICATION FOLLOWED SHORTLY BY A FLASHING HYD PRESSURE AND STAB MISCOMPARE ANNUNCIAT - [SDR DXTA2013010705235](https://openairdocs.org/sdr/DXTA2013010705235), Jan 6, 2013: SEAL. LEAKING. ON CLIMBOUT , AFTER GEAR AND FLAPS UP, RECEIVED AN UNSAFE GEAR INDICATION, RED LIGHT ON, THREE GREENS OUT, FOLLOWED SHORTLY BY A HYD PRESSURE ANNUNCIATOR AND ST - [SDR DXTA2011120104809](https://openairdocs.org/sdr/DXTA2011120104809), Nov 30, 2011: INDICATION SYS. MALFUNCTIONED. GEAR UNLOCK LIGHT REMAINED ILLUMINATED AFTER GEAR RETRACTION SELECTED. HYD PRESS ALSO REMAINED ILLUMINATED. AIRSPEED NEVER EXCEEDED 196 KTS. ONCE GEAR WAS SELEC - [SDR DXTA2011091204721](https://openairdocs.org/sdr/DXTA2011091204721), Sep 11, 2011: ADC. FAILED. CLIMBING THROUGH FL320 FOR FL340 RT SIDE IAS BEGAN CLIMBING RELATIVE TO LT SIDE AND STANDBY IAS. THIS GENERATED AN AMBER "IAS - MISCOMPARE" ANNUNCIATOR ON BOTH - [SDR DXTA2011022304476](https://openairdocs.org/sdr/DXTA2011022304476), Feb 22, 2011: UPLOCK SWITCH. OUT OF ADJUST. GEAR UNLOCK LIGHT REMAINED ON AFTER GEAR RETRACTION.( HYD PRESS LIGHT NEVER EXTINGUSHIED , AND THEN THE STAB MIS-COMPARE LIGHT CAME ON , UNABLE TO DETERMINE WHI - [SDR DXTA2010020803974](https://openairdocs.org/sdr/DXTA2010020803974), Feb 6, 2010: UPLOCK SWITCH. FAULTED. GEAR RAISED ON TAKEOFF. GREEN LIGHTS WENT OUT BUT RED INTRANSIT REMAINED ON FOLLOWED BY STAB MISCOMPARE. CREW LOWERED GEAR. GEAR LOCKED DOWN . HYD PRESS & STAB - [SDR DXTA2010020203969](https://openairdocs.org/sdr/DXTA2010020203969), Feb 1, 2010: LANDING GEAR. MALFUNCTIONED. DURING GEAR RETRACTION THE UNLOCK AND HYD PRESS LIGHTS REMAINED ILLUMINATED. THE FOLLOWING GEAR EXTENSION WAS LOUD AND FAST. ON THE PREVIOUS LANDING DURING GEAR - [SDR DXTA200803138](https://openairdocs.org/sdr/DXTA200803138), Jun 23, 2008: BLOWER. SEIZED. FOUND HT030 BREAKER POPPED IN THE "HELL HOLE" WE RESET IT. UPON TURNING ON THE AVIONICS/BATTERY THE FLIGHT DECK FILLED WITH SMOKE. (B) - [SDR DXTA20082905](https://openairdocs.org/sdr/DXTA20082905), Feb 28, 2008: ACTUATOR. MALFUNCTIONED. UPON LOWERING THE LANDING GEAR THE RED (UNSAFE) LIGHT REMAINED ILLUMINATED AND THE LT MAIN GEAR GREEN LIGHT REMAINED OFF. LT GEAR ACTUATOR REPLACED WITH RENTAL - [SDR DXTA200702679](https://openairdocs.org/sdr/DXTA200702679), Dec 14, 2007: LATCH. BINDING. CABIN DOOR WARINING LIGHT CAME ON IN FLIGHT. FOUND CABIN DOOR UPPER AFT LATCH BINDING. ADJUSTED UPPER AFT LATCH AS NEEDED TO FREE UP PIN TO CONTACT DOOR LATCH S - [SDR DXTA200702352](https://openairdocs.org/sdr/DXTA200702352), Jul 20, 2007: SYMBOL GENERATOR. INOPERATIVE. RED (PIC) "X" ON PFD/MFD [SYMBOL GENERATOR FAILURE SINGLE]. POST FLIGHT INSPECTION PERFORMED REVEALED NO CIRCUIT BREAKERS POPPED. REMOVED AND INSTALLED I.A.C- - - [SDR DXTA200702067](https://openairdocs.org/sdr/DXTA200702067), Apr 2, 2007: TRIM SYSTEM. STUCK. (P) ON TAKEOFF TRIM STUCK JUST BETWEEN THE TOP LINE AND THE TOP OF THE (T) IN THE TAKEOFF RANGE. WE MANUALLY FORCED IT FREE AND IT BEGAN TO WORK AGAIN. DURING T - [SDR DXTA200702056](https://openairdocs.org/sdr/DXTA200702056), Mar 31, 2007: UNKNOWN. UNKNOWN. (NO TAKEOFF) LIGHT ILLUMINATED ON TAKEOFF ROLL-ABORTED-CYCLED STAB, FLAPS AND SPEED BRAKE MANY TIMES, NO CHANGE. PULLED SPEED BRAKE BREAKER AND LIGHT WENT OUT. - [SDR DXTA200702038](https://openairdocs.org/sdr/DXTA200702038), Mar 20, 2007: WARNING LIGHT. INOPERATIVE. NO TAKEOFF LIGHT ILLUMINATED ON TAKEOFF ROLL. FLAPS, TRIM AND SPEEDBRAKES WERE ALL VERIFIED IN CORRECT POSITION, ABORTED TAKEOFF. (SUPPLEMENTAL 23 MARCH 07) FOU - [SDR DXTA200601623](https://openairdocs.org/sdr/DXTA200601623), Sep 30, 2006: ENGINE. MAKING METAL. ON TAKEOFF ROLL, RT OIL FILTER BYPASS ANNUNCIATOR ILLUMINATED. OIL TEMP AND PRESS INDICATIONS NORMAL. ABORTED TAKEOFF JUST AFTER TAKEOFF ROLL STARTED. REMOVED N - [SDR DXTA200500862](https://openairdocs.org/sdr/DXTA200500862), Jul 23, 2005: POSITION SWITCH. INOPERATIVE. STAB MIS COMP LIGHT CAME ON AFTER T/O AND FLAPS SELECTED UP CYCLED FLAPS LIGHT WENT OUT AND ACCELERATED TO 250 KNOTS LIGHT CAME BACK ON AGAIN, SLOWED TO 200 KTS - [SDR DXTA200400502](https://openairdocs.org/sdr/DXTA200400502), Dec 28, 2004: UPLOCK. OUT OF ADJUST. AFTER TAKEOFF NOSE GEAR WOULD NOT FULLY RETRACT. CYCLED ON UPLOCK ON & OFF (UNLOCK LIGHT). ADJUSTED NOSE GEAR UPLOCK. OPS CHECK GOOD. WORK DONE IAW CESSNA 560XL - [SDR DXTA200400499](https://openairdocs.org/sdr/DXTA200400499), Dec 26, 2004: LANDING GEAR. MALFUNCTIONED. AFTER TAKEOFF NOSE GEAR WOULD NOT GET INTO UPLOCK AND CONTINUED TO CLUNK IN WHEEL WELL. HYDRAULIC PRESSURE LIGHT WOULD NOT GO OUT. ITEM IS UNDER INVESTIGATION. - [SDR CWQR200400006](https://openairdocs.org/sdr/CWQR200400006), Nov 30, 2004: TUBE. CRACKED. AIRCRAFT WAS LEAKING FUEL. TECHNICIAN FOUND A 1.3 INCH CRACK IN -Y- TUBE IN PRESSURE REFUELING SYSTEM. NO EVIDENCE OF DAMAGE TO TUBE ASSY. REPLACED TUBE ASSY, A - [SDR DXTA200400294](https://openairdocs.org/sdr/DXTA200400294), Apr 16, 2004: UPLOCK SWITCH. FAULTY. AFTER TAKEOFF AND GEAR WAS SELECTED UP, HYDRAULIC PRESS LIGHT CAME ON, STAB MIS-COMPARE AND GEAR UNLOCK LIGHTS ALSO CAME ON. CORRECTED STAB MIS-COMPARE, HYD PRE - [SDR DXTA200400283](https://openairdocs.org/sdr/DXTA200400283), Mar 29, 2004: LINE. LEAKING. UPON GEAR RETRACTION SEVERAL LOUD BANGS WERE HEARD AND FELT, GEAR LIGHTS EXTINGUISHED, HYDRAULIC PRESSURE LIGHT STARTED FLASHING. PULLED C/B AND ANOTHER BANG HE - [SDR DXTA200400219](https://openairdocs.org/sdr/DXTA200400219), Jan 18, 2004: INDICATOR. MALFUNCTIONED. ON TAKEOFF ROLL AT 70 KNOTS, F/O'S AIRSPEED INDICATOR FAILED TO DISPLAY. VISUALLY INSPECTED PITOT TUBES AND STATIC PORTS FOR MOISTURE, DEBRIS, OR ANY BLOCKAGE, - [SDR DXTA200300176](https://openairdocs.org/sdr/DXTA200300176), Dec 4, 2003: BULB. BURNED OUT. DURING FINAL APPROACH BOTH MAIN GEAR INDICATIONS, DID NOT SHOW DOWN AND LOCKED. AIRCRAFT DIVERTED TO SMF AND ACCOMPLISHED A QRH PROCEDURE. NO EMERGENCY WAS DECL - [SDR DXT2001F00003](https://openairdocs.org/sdr/DXT2001F00003), Oct 26, 2001: CABLE. CHAFED. CABLE RUN JUST FORWARD OF BATTERY COMPARTMENT, INBOARD SIDE OF HYDRAULIC PRESSURE LINE, RUBBING ON BULKHEAD.STATION FS390.(K) ## 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.