# N679QS: 2020 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: 680A0257
- Year built: 2020
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: November 9, 2020
- Certificate issued: July 9, 2026
- Expires: July 31, 2033
- Mode S code: A8FE96
- Owner type: Co-owned
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=679QS
- Page: https://openairdocs.org/aircraft/N679QS

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 N679QS.

## FAA accident and incident reports

None matched to N679QS.

## Service difficulty reports (22)

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 DXTA2026100509965](https://openairdocs.org/sdr/DXTA2026100509965), Sep 30, 2026: CONTROLLER. FAULTED. RECEIVED SUPPLY BLD LEAK R AMBER CAS MESSAGE IN CLIMB. RAN QRH, CLEARED BUT CAME BACK. ATTEMPTED TO DEVIATE OUT OF ICING CONDITIONS & AFTER RECEIVED SUPPLY BLD 
- [SDR DXTA2026100509995](https://openairdocs.org/sdr/DXTA2026100509995), Sep 30, 2026: CONTROLLER. FAULTED. RECEIVED BLD LEAK R AMBER CAS MESSAGE, RAN QRH, & TRIED TO EXIT ICING CONDS. AFTER, RECEIVED AMBER BLD LEAK L CAS MESS. & ALT AMBER CAS MESS. WITH CABIN ALT IN 
- [SDR DXTA2026072408958](https://openairdocs.org/sdr/DXTA2026072408958), Jul 22, 2026: ELEC CONNECTOR. DISCONNECTED. THE EMERGENCY LIGHT LOCATED IN THE LAV ON FLOOR LEVEL, RT (TOW KICK LIGHT) DID NOT PASS PREFLIGHT TEST. PER CONVERSATION WITH MX, IT IS SUSPECTED THAT THE BULB 
- [SDR DXTA2026011206487](https://openairdocs.org/sdr/DXTA2026011206487), Jan 8, 2026: PCB. FAULTY. THE LT DC GEN OFF L AMBER CAS MESS APPEARED RIGHT AT ABOUT 90-100 KTS ON TAKE OFF ROLL, ARES DATA SENT TO TEXTRON ON 1/8 AT 1645.EZ1/8 PERFORMED ENG RUNS VERIFI
- [SDR DXTA2025121606136](https://openairdocs.org/sdr/DXTA2025121606136), Dec 14, 2025: LIGHT. INOPERATIVE. LAV EMER FLOOR PATHWAY LIGHT BELOW SEAT 9 IS NOT WORKING. RESEARCHED THE AMM FOR EMERGENCY LIGHT€™S LOCATION. GAINED ACCESS TO AIRCRAFT ON THE RAMP. BROUGHT A 
- [SDR DXTA2025062504000](https://openairdocs.org/sdr/DXTA2025062504000), Jun 22, 2025: CONTROL MODULE. FAULTED. DURING APPROACH TO LAND, GEAR HANDLE WAS MOVED TO DOWN POSITION. AN AMBER CAS GEAR DISAGREE L-R-N DISPLAYED AND NO MOVEMENT HEARD. ALL THREE GEAR POSITION INDIC
- [SDR DXTA2025042803225](https://openairdocs.org/sdr/DXTA2025042803225), Apr 26, 2025: BATTERY. NO TEST. EMERGENCY LIGHTING: EMERGENCY LIGHTS WOULD NOT TEST PROPERLY. ACCOMPLISHED THE AFM APPROVED CHARGING PROCEDURE AND STILL WOULD NOT ILLUMINATE. 2ND 30 MIN CYCLE 
- [SDR DXTA2025030402558](https://openairdocs.org/sdr/DXTA2025030402558), Mar 2, 2025: BATTERY PACK. INOPERATIVE. DURING EMER LTS TEST THE WHITE EXIT SIGN ABOVE SEAT 7, RED EXIT SIGN BELOW LAVATORY SEAT, AND EVACUATION PATH LIGHTING BELOW LAVATORY SEAT DID NOT ILLUMINATE. F
- [SDR DXTA2024102100898](https://openairdocs.org/sdr/DXTA2024102100898), Oct 18, 2024: PIN. DIRTY. LAV EXIT SIGN/LIGHT: EMERGENCY EXIT LIGHT ON THE BASE OF LAV DOES NOT ILLUMINATE. CORRECTIVE ACTION; FOUND LAV LOWER EMERGENCY EXIT SIGN INOP. GAINED DISCONNECT
- [SDR DXTA2023051085810](https://openairdocs.org/sdr/DXTA2023051085810), May 9, 2023: UNKNOWN. UNKNOWN. MAIN DOOR: AFTER PARKING AND SHUTTING DOWN, CREW WAS UNABLE TO OPEN THE MAIN CABIN DOOR. AIRCRAFT WAS COMPLETELY DEPRESSURIZED BUT THE HANDLE WOULD NOT MOVE. CR
- [SDR 2022F00463](https://openairdocs.org/sdr/2022F00463), Nov 21, 2022: FAIRING. ERODED. STAB WIPER LEADING EROSION REF ENGINEERING MEMO# DQ37130M1
- [SDR DXTA2022100771730](https://openairdocs.org/sdr/DXTA2022100771730), Oct 7, 2022: HINGE. BROKEN. ENTRANCE STAIRS: TOP STEP OF DOOR IS DETACHED. THERE IS ABOUT A 1" GAP AND YOU CAN LOOK RIGHT DOWN INTO THE DOOR MECHANISM. THE AFT PORTION OF STEP IS PROTRUDIN
- [SDR DXTA2022012555680](https://openairdocs.org/sdr/DXTA2022012555680), Jan 24, 2022: DCU. DEFECTIVE. GSD FAIL 3 AMBER CAS: GSD FAIL 3 AMBER CAS MESSAGE ILLUMINATED DURING CLIMB. WE RAN THE QRH AND BLEW THE GEAR DOWN.// SIGNOFF// ARRIVED AT AIRCRAFT AND INTERROG
- [SDR DXTA2021120753130](https://openairdocs.org/sdr/DXTA2021120753130), Dec 6, 2021: UNKNOWN. SMOKE. CABIN SMOKE: ON LANDING ROLL AND SHORTLY AFTER APPLYING THE BRAKES, SMOKE BECAME PRESENT IN BOTH CABIN AND COCKPIT. SMOKE/FIRE/FUME QRC WAS ACCOMPLISHED. PRESS 
- [SDR DXTA2021112252360](https://openairdocs.org/sdr/DXTA2021112252360), Nov 22, 2021: UNKNOWN. HAZE. SMOKE IN COCKPIT / CABIN: WHITE HAZE DEVELOPED IN THE CABIN AFTER ENGINE SHUTDOWN WITH APU RUNNING AND APU BLEED AIR ON. THERE WAS NOT ODOR FROM THE HAZE. REMOV
- [SDR DXTA2021111551760](https://openairdocs.org/sdr/DXTA2021111551760), Nov 12, 2021: NONE. NONE. MAIN DOOR HANDLE: REPEAT WRITE UP. MAIN DOOR HANDLE REMAINS STUCK A FEW INCHES BELOW THE UP POSITION. // SIGNOFF// CARRIED OUT CABIN DOOR LATCH STRIKER RIGGING 
- [SDR DXTA2021092249230](https://openairdocs.org/sdr/DXTA2021092249230), Sep 21, 2021: NONE. NONE. MAIN DOOR HANDLE: THE MAIN CABIN DOOR HANDLE IS VERY STIFF WHEN LATCHING THE DOOR FROM THE INSIDE.///SIGN-OFF///DOOR OPERATES SMOOTHLY AND HANDLE FALLS WITHIN F
- [SDR 2021F00225](https://openairdocs.org/sdr/2021F00225), Aug 10, 2021: GEARBOX. CORRODED. THE ACCESSORY GEARBOX IS CORRODING ON THE MOUNT PADS AND EXTERNAL SURFACES. REPAIRED IAW PWC MM PART NO. 30B7302 REV. 17.1. A REINSPECTION IS REQUIRED AT EVERY 
- [SDR 2021FA0000226](https://openairdocs.org/sdr/2021FA0000226), Aug 10, 2021: COVER. CORRODED. THE ACCESSORY GEARBOX REAR COVER IS BEGINNING TO CORRODE ON THE MOUNT PADS AND EXTERNAL SURFACES. REPAIRED IAW P&WC MM PART NO. 30B7302, REV. 17.1. A REINSPECTI
- [SDR DXTA2021070844900](https://openairdocs.org/sdr/DXTA2021070844900), Jul 7, 2021: HANDLE. MALFUNCTIONED. MAIN DOOR HANDLE: MAIN DOOR LATCH HANDLE VERY HARD TO OPERATE WHEN CLOSING/LATCHING. // SIGN OFF // ACCOMPLISHED OPERATIONAL CHECK OF THE MAIN ENTRY DOOR AND FO
- [SDR DXTA2021041940940](https://openairdocs.org/sdr/DXTA2021041940940), Apr 18, 2021: LOCK. MALFUNCTIONED. MAIN DOOR: MAIN CABIN DOOR HANDLE DIFFICULT TO CLOSE FROM BOTH INSIDE AND OUTSIDE AIRCRAFT. SEEMS TO BE BINDING. REPEAT WRITEUP. GAINED ACCESS TO THE MAIN CABIN
- [SDR DXTA2021032940110](https://openairdocs.org/sdr/DXTA2021032940110), Mar 26, 2021: STOP FITTING. OUT OF ADJUST. WHILE SECURING MAIN CABIN DOOR CLOSED FROM INTERIOR, DOOR HANDLE IS VERY DIFFICULT TO MOVE. INSPECTED MAIN CABIN DOOR FOUND DOOR MOTOR PULLING DOOR UP TO FAR PA

## Service difficulty reports on N679QS not matched to an aircraft (27)

They name N679QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR JGVR20181220003](https://openairdocs.org/sdr/JGVR20181220003), Dec 20, 2018: AXLE. CORRODED. NOSE WHEEL AXLE TUBE AND BUCKETS ARE CORRODED.REMOVED CORRODED WHEEL AXLE TUBE AND BUCKETS. INSTALLED NEW CUSTOMER SUPPLIED WHEEL AXLE TUBE AND BUCKETS (2EA) IA
- [SDR JGVR20181220002](https://openairdocs.org/sdr/JGVR20181220002), Dec 20, 2018: STRUCTURE. CORRODED. L/H HORIZONTAL STABILIZER HAS AREA OF CORROSION UNDER PANEL 340DL NEAR AFT SPAR. BLENDED, PERFORMED NDT, TREATED AND PAINTED AREA OF MINOR CORROSION UNDER PANEL
- [SDR JGVR20181220001](https://openairdocs.org/sdr/JGVR20181220001), Dec 20, 2018: SKIN. DAMAGED. DURING NOSE LANDING GEAR WELL CORROSION INSPECTION FOUND SKIN PEELED UP BY RH NLG DOOR MIDDLE HINGE AREA AND RH NLG DOOR DAMAGED. REPAIRED CRACKS IN THE RH NOSE
- [SDR DXTA2016102406322](https://openairdocs.org/sdr/DXTA2016102406322), Oct 24, 2016: SWITCH. FAILED. DURING FLIGHT AT 25000, THE RIGHT ECC MANUAL LIGHT CYCLED ON AND OFF A FEW TIMES AND THE RIGHT ENGINE N1 FLUCTUATED BETWEEN 80 AND 89 PERCENT.NO CHANGES NOTICED
- [SDR DXTA2014042105737](https://openairdocs.org/sdr/DXTA2014042105737), Apr 17, 2014: POWER UNIT. MALFUNCTIONED. SMOKE FILLED CABIN & COCKPIT ON APU STARTUP WITH BLEED AIR ON. REMOVED AND REPLACED AUX POWER UNIT IAW MM 49-10-00. COMPLIED WITH ECU BURN-IN AND COALESOR SOCK 
- [SDR DXTA2014030305670](https://openairdocs.org/sdr/DXTA2014030305670), Mar 1, 2014: STRUCTURE. DIRTY. THERE IS A STRONG ODOR OF JET FUEL IN AFT ACCESSORY COMPARTMENT. A DRIP IS VISIBLE AT THE BOTTOM OF APU CONTAINER. OPENED PANEL 322AT INSPECTED & CLEANED APU BA
- [SDR DXTA2013112705582](https://openairdocs.org/sdr/DXTA2013112705582), Nov 27, 2013: TUBE. DAMAGED. DURING CLIMB OUT WING O HEAT R CAME ON & STAYED ON FOR ABOUT 10 SECONDS. WE REDUCED POWER TO APPROXIMATELY 70% N1. LIGHT CAME ON AGAIN AT SHORT FINAL FOR ABOUT 
- [SDR DXTA2013081505476](https://openairdocs.org/sdr/DXTA2013081505476), Aug 15, 2013: SWITCH. FAILED. AFTER LANDING, CABIN INTERIOR LIGHTS WERE TURNED ON. WHEN THE AIRSTAIR DOOR WAS OPENED AND LOCKED IN THE FULL DOWN POSITION ALL THE ENTRY AND CABIN INTERIOR LIG
- [SDR DXTA2013072905458](https://openairdocs.org/sdr/DXTA2013072905458), Jul 28, 2013: ACTUATOR. FAILED. ON DEPARTURE, DURING GEAR RETRACTION, RED GEAR UNSAFE LIGHT WOULD NOT GO OUT. HYD PRESSURE LIGHT STAYED ON AND THE STAB MISCOMPARE LIGHT CAME ON. PLANE FLEW LIK
- [SDR DXTA2013061105415](https://openairdocs.org/sdr/DXTA2013061105415), Jun 10, 2013: BRAKE SYS. CONTAMINATED. THE RIGHT TOE BRAKE PRESSURE SEEMS TO DIMINISH AS PRESSURE IS APPLIED, LEAVING AN ASYMETRICAL ALIGNMENT OF THE PEDALS THEMSELVES. BRAKES ARE GRABBING, BUT THE R
- [SDR DXTR20130417001](https://openairdocs.org/sdr/DXTR20130417001), Apr 17, 2013: ATTACH BRACKET. CRACKED. RIGHT ELEVATOR OTBD ATTACH POINT BRACKET CRACKED. R & R RT ELEVATOR OTBD ATTACH POINT BRACKETS IAW SRM 51-40-03, 51-40-06, 51-40-09 & BALANCED IAW SRM 51-60-02.
- [SDR DXTA2009110503847](https://openairdocs.org/sdr/DXTA2009110503847), Nov 4, 2009: BRAKE ASSY. MALFUNCTIONED. ON LANDING ROLLOUT BRAKES GRABBED MULTIPLE TIMES BEFORE SLOWING TO TAXI SPEED, WHEN BRAKING BECAME NORMAL. VISUALLY INSPECTED BRAKES AND TIRES FOR WEAR AND DEFE
- [SDR CWQR200809](https://openairdocs.org/sdr/CWQR200809), Aug 21, 2008: SUPPORT BRACKET. CRACKED. DURING A PHASE 104 INSPECTION, FOUND THE SUPPORT BRACKET CRACKED. CRACK IS ABOUT 1.5 INCHES LONG AND IS CENTERED AT THE ATTACH POINT FOR THE VALVE. SERVICE COND
- [SDR CWQR200808](https://openairdocs.org/sdr/CWQR200808), Aug 21, 2008: SUPPORT BRACKET. CRACKED. DURING A PHASE 1-4 INSP, FOUND THE SUPPORT BRACKET CRACKED, CRACK IS LOCATED IN THE SUPPORT BRACKET FOR THE ECU, THE CRACK INTERSECTS A HOLE FOR THE NUTPLATE TH
- [SDR DXTA200803097](https://openairdocs.org/sdr/DXTA200803097), Jun 5, 2008: BRAKE SYS. MALFUNCTIONED. LT BRAKE IS EXTREMELY SENSITIVE AIRCRAFT JERKS LT ON EVERY BRAKE APPLICATION. R&R LT BRAKE ASSY IAW MM 32-42-01. INSTALLED LT WHEEL ASSY IAW MM 32-41-02, BLED B
- [SDR CWQR200803](https://openairdocs.org/sdr/CWQR200803), Apr 17, 2008: CONTROL CABLE. IMPROPER PART. DURING A ROUTINE CABLE REPLACEMENT OF AILERON CABLE PN 6660002-12, WE FOUND THAT THE CABLE HAD A SWAGED BALL AND A CLEVIS END INSTALLED. THIS CABLE ASSY SHOULD 
- [SDR DXTA20082932](https://openairdocs.org/sdr/DXTA20082932), Mar 12, 2008: PUMP. INOPERATIVE. WHILE TAXING, ANTI SKID INOP LIGHT CAME ON , FOLLOWED BY LOW BRAKE PRESS LIGHT AND SUBSEQUENT LOSS OF NORMAL BRAKING. REPLACED POWER BRAKE HYDRAULIC PUMP WITH N
- [SDR DXTA20082923](https://openairdocs.org/sdr/DXTA20082923), Mar 8, 2008: BRAKE. CONTAMINATED. UPON SHUTDOWN , SUFFICENT SMOKE FROM RT MAIN GEAR. SMOKE PERSISTED FOR 15 MIN. REMOVED RT MAIN WHEEL AND INSP WHEEL AND BRAKE ASSY FOUND EXCESSIVE GREASE ON INS
- [SDR DXTA200702693](https://openairdocs.org/sdr/DXTA200702693), Dec 19, 2007: CHECK VALVE. BYPASSING. (LO HYD FLOW RT) ANNUNCIATOR ILLUMINATED ON TAKEOFF ROLL AT 40 KNOTS. NO SECONDARY INDICATIONS. ABORTED TAKEOFF. REMOVED AND REPLACED R/H LO HYD. FLOW CHECK VAL
- [SDR DXTA200702633](https://openairdocs.org/sdr/DXTA200702633), Nov 28, 2007: LIMIT SWITCH. OUT OF ADJUST. HORIZONTAL STAB MOVED NORMALLY UPON FLAP RETRACTION AFTER TAKEOFF. AT 16000 FT AND LEVEL FLIGHT 280 KNOTS, "STAB MISCOMPARE" AND "HYD PRESS" ANNUNCIATORS CAME O
- [SDR DXTA200702200](https://openairdocs.org/sdr/DXTA200702200), May 17, 2007: UNKNOWN. UNKNOWN. IN CRUISE, AT FL300 "STAB MIS COMP" AND "HYD PRESS" ANNUNCIATORS ILLUMINATED. CONNECTED AIR DATA TEST SET AND PERFORMED FULL "TWO POSITION HORIZONTAL STAB OPERA
- [SDR DXTA200601603](https://openairdocs.org/sdr/DXTA200601603), Sep 14, 2006: ACTUATOR. DEFECTIVE. AFTER TAKEOFF WHEN GEAR WAS SELECTED UP ALL GREEN LIGHTS EXTINGUISHED THEN RED LIGHT EXTINGUISHED FOLLOWED BY NOSE GEAR GREEN LIGHT COMING ON WITH NOISE OF NOSE
- [SDR DXTA200601562](https://openairdocs.org/sdr/DXTA200601562), Aug 19, 2006: WARNING LIGHT. FALSE ACTIVATION. WHEN THE GEAR WAS SELECTED UP AFTER TAKEOFF THE GEAR LIGHTS SEQUENCED OUT AS NORMAL THEN NOSE GEAR GREEN LIGHT CAME BACK ON AND STAYED ON . AIR NOISE FROM GEAR 
- [SDR DXTA200501157](https://openairdocs.org/sdr/DXTA200501157), Dec 26, 2005: WHEEL. OUT OF POSITION. AFTER LIFT OFF EXCESSIVE AMOUNT OF FWD CONTROL PRESSURE REQUIRED FOR NORMAL CLIMB. AIRCRAFT ALMOST WANTED TO ROTATE BY ITSELF. THROUGHOUT FLIGHT, TRIM INDICATOR
- [SDR DXTA200500968](https://openairdocs.org/sdr/DXTA200500968), Sep 14, 2005: ELEVATOR. MALFUNCTIONED. THROUGH 110 KTS ON TAKEOFF ROLL FULL AFT ELEVATOR DID NOT INITIATE ROTATION TAKEOFF ABORTED. ITEM IS UNDER INVESTIGATION.
- [SDR DXTA200500618](https://openairdocs.org/sdr/DXTA200500618), Mar 8, 2005: RUDDER. MALFUNCTIONED. AIRCRAFT REQUIRES EXCESSIVE EFFORT FOR RUDDER CONTROL IN HIGH POWER SETTINGS ON GROUND AND INFLIGHT "AIRSPEED IS NOT AN ISSUE". FEELS AS IF YAW DAMPER IS ON, SU
- [SDR DXTA200400264](https://openairdocs.org/sdr/DXTA200400264), Mar 15, 2004: WARNING LIGHT. ILLUMINATED. AFTER LANDING, DURING TAXI ANTISKID INOP AND LO BRAKE PRESS ANNUNCIATOR ILLUMINATED. BRAKES FELT HARD AND INEFFECTIVE BUT DID NOT GO TO THE FLOOR, USED EMERGENC

## 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

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