# N633QS: 2021 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: 680A0271
- Year built: 2021
- Type: Fixed wing multi engine
- Engine type: Turbo-fan
- Airworthiness: Standard, transport
- Airworthiness date: June 4, 2021
- Certificate issued: September 14, 2026
- Expires: September 30, 2033
- Mode S code: A84A50
- Owner type: Co-owned
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=633QS
- Page: https://openairdocs.org/aircraft/N633QS

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 N633QS.

## FAA accident and incident reports

None matched to N633QS.

## Service difficulty reports (18)

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 DXTA2026091509675](https://openairdocs.org/sdr/DXTA2026091509675), Sep 12, 2026: WARNING MESSAGE. FALSE ACTIVATION. RECEIVED A RED AIRSPEED INDICATION THAT INDICATED 256 WITH FLAPS SELECTED TO ONE FOR A FEW SECONDS. IMMEDIATELY RAISED FLAPS BACK UP. NO GEAR INSPECTION NEEDED.
- [SDR DXTA2026081209221](https://openairdocs.org/sdr/DXTA2026081209221), Aug 9, 2026: PUMP. LEAKING. DURING CLIMB OUT, RECEIVED -HYD VOLUME LOW- CASS MESSAGE. COMPLETED THE APPROPRIATE CHECKLIST. BLEW DOWN GEAR & LANDED USING EMERGENCY BRAKING AND STEERING IAW 
- [SDR DXTA2025052203568](https://openairdocs.org/sdr/DXTA2025052203568), May 20, 2025: RUDDER. FAULTED. DURING TAKEOFF I PROGRESSIVELY LOST AUTHORITY OF THE RIGHT RUDDER PEDAL. I WAS NOT ABLE TO PUSH THE PEDAL TO MAINTAIN CENTERLINE LEADING TO AN ABORTED TAKEOFF. 
- [SDR DXTA2025032702820](https://openairdocs.org/sdr/DXTA2025032702820), Mar 25, 2025: LIGHT. INOPERATIVE. FLOOR EMERG EXIT LIGHT: EMERGENCY LIGHTS UNDER LAV SEAT ARE NOT ILLUMINATED WHEN TESTING THE SYSTEM. GAINED ACCESS TO AIRCRAFT, POWERED AIRCRAFT AND REMOVED LAV
- [SDR DXTA202503272820](https://openairdocs.org/sdr/DXTA202503272820), Mar 25, 2025: LIGHT. INOPERATIVE. FLOOR EMERG EXIT LIGHT: EMERGENCY LIGHTS UNDER LAV SEAT ARE NOT ILLUMINATED WHEN TESTING THE SYSTEM.
- [SDR DXTA2025032602820](https://openairdocs.org/sdr/DXTA2025032602820), Mar 25, 2025: LIGHT. INOPERATIVE. FLOOR EMERG EXIT LIGHT: EMERGENCY LIGHTS UNDER LAV SEAT ARE NOT ILLUMINATED WHEN TESTING THE SYSTEM.
- [SDR DXTA2025031402671](https://openairdocs.org/sdr/DXTA2025031402671), Mar 13, 2025: SEAL. DEFECTIVE. MAIN DOOR: LOUD SQUEAL FROM CABIN DOOR IN DESCENT BETWEEN 6000-3000 FT SAME EFFECT IN SHORT AND LING FLIGHTS CORRECTIVE ACTION: REPLACED MED PRESSURE SEAL. OPS 
- [SDR DXTA2024112101198](https://openairdocs.org/sdr/DXTA2024112101198), Nov 18, 2024: BATTERY. DAMAGED. EMER LIGHTS OFF AMBER CAS: DURING PREFLIGHT INSPECTION, FOUND INTERIOR EMERGENCY LIGHTS AT SEAT 7 AND 5 DOES NOT ILLUMINATE. TRIED RECHARGE PROCEDURES TWICE, FA
- [SDR DXTA2024051311759](https://openairdocs.org/sdr/DXTA2024051311759), May 13, 2024: BULB. INOPERATIVE. LAV EMERG LIGHT: PATH EMER LIGHTING UNDER LAV IS OUT. FOUND LAV TOEKICK LIGHT INOP. REMOVED LIGHT P/N: CL327-01-30. NSN. INSTALLED CUSTOMER SUPPLIED NEW LAV TOE
- [SDR DXTA2024022310985](https://openairdocs.org/sdr/DXTA2024022310985), Feb 22, 2024: ROD. LACK OF LUBE. MAIN CABIN DOOR BINDS WHEN CLOSING. MAKES LOUD NOISE. GAINED ACESS TO CABIN AND PERFORMED OPS CHECK, FOUND CABIN DOOR ROD ASSEMBLY IS CAUSING THE BIND NOISE, CL
- [SDR DXTA2023092596340](https://openairdocs.org/sdr/DXTA2023092596340), Sep 24, 2023: UPLOCK SWITCH. FAULTED. MLG: AT FL400, AMBER GEAR DISAGREE R CAS MESSAGE ILLUMINATED. AIRCRAFT AUTOMATICALLY SLOWED TO 210KTS. CAS EXTINGUISHED AFTER 20 MINUTES. WE REMAINED AT 210KTS 
- [SDR DXTA2023071791110](https://openairdocs.org/sdr/DXTA2023071791110), Jul 16, 2023: UNKNOWN. UNKNOWN. MAIN DOOR: WHILE CLOSING MAIN CABIN DOOR, PIN CONNECTING THE MOTOR ARM SHEARED. REMOVED BROKEN SHEAR PIN PN: 7411323-5 SN: N/A. INSTALLED NEW PIN PN: 7411323-5 
- [SDR DXTA2023070790450](https://openairdocs.org/sdr/DXTA2023070790450), Jul 6, 2023: UPLOCK SWITCH. DEFECTIVE. RIGHT MLG LANDING GEAR EXTENSION: HAD A R MAIN LANDING UNSAFE INDICATION. COMPLETED THE "LANDING GEAR WILL NOT EXTEND CHECKLIST" THE GEAR BLOWDOWN BOTTLE HAS BE
- [SDR DXTA2023052587030](https://openairdocs.org/sdr/DXTA2023052587030), May 24, 2023: UNKNOWN. UNKNOWN. CABIN EMERG LIGHT: UPON SHUTTING DOWN AND POWERING OFF APU AND BATTERIES THE EMERGENCY LIGHTS OVER SEAT 3 UNDER SEAT 3 OVER MAIN CABIN DOOR AND LEFT WING INSPEC
- [SDR DXTA2022090669750](https://openairdocs.org/sdr/DXTA2022090669750), Sep 5, 2022: NONE. NONE. MAIN EXIT SIGN/LIGHT: WITH ELECTRICAL POWER OFF AND THE EMER LIGHT SWITCH OFF, THE CABIN EXIT LIGHT REMAINS ILLUMINATED AS WELL AS THE FLOOR EXIT LIGHTS AT SEAT
- [SDR DXTA2022060163100](https://openairdocs.org/sdr/DXTA2022060163100), Jun 1, 2022: NONE. NONE. ENGINE FOD: WHILE DEPARTING OUT OF FTW THE LEFT ENGINE INGESTED A LARGE BALLOON. A PIECE OF IT IS STILL STUCK BETWEEN THE FAN AND THE COWL. NO VIBRATIONS NOTED 
- [SDR DXTA2022010454720](https://openairdocs.org/sdr/DXTA2022010454720), Jan 3, 2022: NONE. NONE. MAIN DOOR: DURING THE CLOSING OF THE MAIN CABIN DOOR AT THE HALF WAY POINT OF THE CYCLE UPWARDS THE DOOR PRODUCES A BINDING / SCREECHING SOUND. WE ALSO NOTED A 
- [SDR DXTA2021071245060](https://openairdocs.org/sdr/DXTA2021071245060), Jul 10, 2021: CONTROL CABLE. OVERROTATED. RETRIM NOSE LEFT AMBER CAS: AT ROTATION FELT STIFFNESS IN L RUDDER PEDAL, AIRCRAFT TRACKED STRAIGHT. AT FLAP RETRACTION CAS ILLUMINATED, & REMAINED ON FOR DURAT

## Service difficulty reports on N633QS not matched to an aircraft (31)

They name N633QS, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR DXTA2020032303607](https://openairdocs.org/sdr/DXTA2020032303607), Mar 22, 2020: MANIFOLD. DEFECTIVE. CABIN ODOR - FUEL SMELL IN COCKPIT AND CABIN WHEN APU AIR IS SELECTED. SMELL DISSIPATES WHEN APU AIR IS TURNED OFF. WETNESS DUE TO FUEL NOTED ON FITTINGS BELOW 
- [SDR DXTA2019072302661](https://openairdocs.org/sdr/DXTA2019072302661), Jul 23, 2019: LIGHT. BURNED. CABIN ODOR BURNING SMELL - THROUGH 28000 FEET DURING CLIMB BOTTH THE CREW AND PASSENGERS NOTICED AN ELECTRICAL BURNING SMELL. THERE WAS NO SMOKE. WE TURNED OFF 
- [SDR EBVR20190708002](https://openairdocs.org/sdr/EBVR20190708002), Jul 8, 2019: SKIN. CRACKED. DURING INSPECTION FOUND CRACK BETWEEN RT FWD SIDE WINDOW AND AFT SIDE WINDOW ON THE SKIN. PERFORMED DOUBLER REPAIR ON RT OVERHEAD COCKPIT OUTER SKIN BETWEEN FS 
- [SDR EBVR20190708001](https://openairdocs.org/sdr/EBVR20190708001), Jul 8, 2019: SKIN. CRACKED. DURING INSPECTION FOUND CRACK BETWEEN RT FWD SIDE WINDOW AND AFT SIDE WINDOW ON THE SKIN. PERFORMED DOUBLER REPAIR ON RT OVERHEAD COCKPIT OUTER SKIN BETWEEN FS 
- [SDR DXTA2019042502313](https://openairdocs.org/sdr/DXTA2019042502313), Apr 25, 2019: UNKNOWN. ODOR. COCKPIT ODOR OIL SMELL - DURING FLIGHT, SELECT A WARM TEMPERATURE, THERE'S A STRONG OIL SMELL IN THE COCKPIT. BORESCOPED APU INLET FOR ERODED OIL SEALS WITH NO 
- [SDR DXTA2018112901730](https://openairdocs.org/sdr/DXTA2018112901730), Nov 28, 2018: COALESCER BAG. ODOR. COCKPIT ODOR BURNING SMELL - THERE IS A STRONG SMELL OF FUMES IN THE COCKPIT AND CABIN. THERE IS A SMELL OF EXHAUST OR BURNT FUEL THAT COMES AND GOES IN THE AIR
- [SDR DXTA2018030300667](https://openairdocs.org/sdr/DXTA2018030300667), Mar 3, 2018: CONTROL HANDLE. INOPERATIVE. CORRECTED SDR AS PER FAA REQUEST. UPON SELECTING LANDING GEAR DOWN ONLY THE RIGHT MAIN GREEN AND GEAR UNSAFE LIGHTS ILLUMINATED. COMPLIED WITH CHECKLIST. FOUND 
- [SDR JGVR20170803001](https://openairdocs.org/sdr/JGVR20170803001), Aug 1, 2017: SKIN. DELAMINATED. ONE SPOT OF DELAMINATION ON LT INBOARD FLAP BOTTOM SURFACE. REPAIRED DELAMINATED AREA ON LT INBD FLAP IAW SRM 57-50-02.
- [SDR JGVR20170803002](https://openairdocs.org/sdr/JGVR20170803002), Jul 31, 2017: BELLCRANK. WORN. ELEVATOR AFT BELLCRANK IN TAILCONE HAS EXCESSIVE PLAY IN PIVOT BOLT. REMOVED BOTH L/H AND R/H ELEVATOR BELLCRANK SUPPORT BRACKETS P/NS UNKNOWN DUE TO ENLARGED H
- [SDR JGVR20170802002](https://openairdocs.org/sdr/JGVR20170802002), Jul 26, 2017: SKIN. DELAMINATED. FOUR AREAS OF DELAMINATION, TWO ON UPPER SKIN AND TWO ON LOWER SKIN, OF THE RIGHT HAND INBOARD FLAP 6525130-38 S/N 596. REPAIRED AREAS PER STRUCTURAL REPAIR MAN
- [SDR JGVR20170802001](https://openairdocs.org/sdr/JGVR20170802001), Jul 24, 2017: STRINGER. CRACKED. CRACKED FUSELAGE STRINGER 15L AT FS 580 IN THE TAILCONE. REPAIRED BY TRIMMING OUT CRACKED AREA AND INSTALLING REPAIR ANGLES AND FILLER IAW ENGINEERING ORDER ERO
- [SDR DXTA2015042006009](https://openairdocs.org/sdr/DXTA2015042006009), Apr 17, 2015: ENGINE. UNSERVICEABLE. AFTER A NORMAL TAKEOFF LEVELED OFF AT 8000 FT AND THE RT ENGINE OIL PRESS LIGHT ILLUMINATED WITH A MASTER WARNING. THE RT ENGINE OIL PRESS GAUGE SHOWED ZERO. AC
- [SDR CWQR20150119002](https://openairdocs.org/sdr/CWQR20150119002), Jan 19, 2015: PAN. CRACKED. DURING A SCHEDULED INSPECTION WE FOUND THE FLEX PAN CRACKED ON THE CAPTAIN’S SEAT ASSEMBLY. THE FLEX PAN HOLD THE CREW SEATS LOWER SEAT CUSHION. SEAT MODEL 1423
- [SDR DXTA2013031105313](https://openairdocs.org/sdr/DXTA2013031105313), Mar 8, 2013: MOTOR. FAILED. ON SHORT FINAL, POWER BRAKES CIRCUIT BREAKER TRIPPED AND ANTI-SKID WARNING LIGHT ILLUMINATED. COMPLIED WITH QRH AND LANDED. R & R THE POWER BRAKE MOTOR. PERFORM
- [SDR DXTA2012111305181](https://openairdocs.org/sdr/DXTA2012111305181), Nov 12, 2012: BRAKE SYS. MALFUNCTIONED. WHEN BRAKES ARE APPLIED DURING TAXI THE ACFT VIBRATES AND SHAKES. BLED BRAKES, NOTICED AIR IN LT BRAKE, TAXI & LEAK CHECKED GOOD. WORK DONE IAW MM 32-44-00.
- [SDR DXTA2012102305160](https://openairdocs.org/sdr/DXTA2012102305160), Oct 22, 2012: SQUAT SWITCH. OUT OF ADJUST. AFTER TAKEOFF, GEAR HANDLE WOULD NOT COME UP. HANDLE STAYED IN DOWN LOCKED POSITION. FOUND LT SQUAT SWITCH ON EDGE OF ADJUSTMENT. ADJUSTED SQUAT SWITCH TO SPECS
- [SDR DXTA2012082305104](https://openairdocs.org/sdr/DXTA2012082305104), Aug 22, 2012: COALESCER BAG. CONTAMINATED. DESCENDING THROUGH 34,000 FT, BOTH PILOTS OBSERVED AN EXHAUST FUME ODOR THAT DID NOT DISSIPATE UNTIL THE ENGINES WERE SHUTDOWN. R & R ECS WATER SEPARATOR CONDEN
- [SDR DXTA2012081305088](https://openairdocs.org/sdr/DXTA2012081305088), Aug 11, 2012: SWITCH. UNSERVICEABLE. AFTER TAKEOFF, PASSING 10,000' (WITH NO DEMAND ON ANY HYDRAULIC SYSTEMS) THE LOW HYD FLOW R ANNUNCIATOR ILLUMINATED. CONTINUED THE CLIMB TO FL250. 15 MINUTES LA
- [SDR CWQR20120611039](https://openairdocs.org/sdr/CWQR20120611039), Jun 11, 2012: HINGE BRACKET. CRACKED. DURING A SCHEDULED INSPECTION, FOUND THE RT ELEVATOR OTBD HINGE BRACKET CRACKED USING EDDY CURRENT NDT METHOD.
- [SDR CWQR20120611038](https://openairdocs.org/sdr/CWQR20120611038), Jun 11, 2012: HINGE BRACKET. CRACKED. DURING A SCHEDULED INSPECTION, FOUND THE LEFT ELEVATOR OTBD HINGE BRACKET CRACKED USING EDDY CURRENT NDT METHOD.
- [SDR CWQR20120611037](https://openairdocs.org/sdr/CWQR20120611037), Jun 11, 2012: HINGE BRACKET. CRACKED. DURING A SCHEDULED INSPECTION, FOUND THE RT ELEVATOR OTBD HINGE BRACKET CRACKED USING EDDY CURRENT NDT METHOD. THE CRACKED BRACKET WAS SENT TO MFG FOR EVALUATIO
- [SDR CWQR20120608035](https://openairdocs.org/sdr/CWQR20120608035), Jun 8, 2012: HINGE. CORRODED. DURING AN INSPECTION, FOUND MAIN CABIN DOOR HINGE HALF (FUSELAGE SIDE) TO BE CORRODED BEYOND LIMITS FROM THE EDGE OF THE PART TO THE FIRST FASTENER ATTACH HOLE.
- [SDR DXTA2012041604949](https://openairdocs.org/sdr/DXTA2012041604949), Apr 14, 2012: ACM. SEIZED. ON PREFLIGHT, AFTER TURNING ON APU BLEED AIR, LOUD WHINING SOUND CAME FROM THE REAR OF ACFT ACCOMPANIED BY BURNING ODOR. SHUTDOWN APU BLEED AND RAN BOTH ENGINES
- [SDR DXTA2011020704452](https://openairdocs.org/sdr/DXTA2011020704452), Feb 4, 2011: THRUST REVERSER. PARTIAL DEPLOY. VIBRATION OCCURRED IN FLIGHT WITH A 10 KNOT RAPID DECREASE IN AIRSPEED (AS IF THRUST REVERSER PARTIALLY DEPLOYED). NO THRUST REVERSER COCKPIT INDICATIONS ILLUMI
- [SDR DXTA2010092404252](https://openairdocs.org/sdr/DXTA2010092404252), Sep 23, 2010: BRAKE ASSY. WEAK. LT BRAKE PEDAL MUSHY AND DEPRESSES TO THE STOP. WHILE TAXING IN, MAKING A LT TURN, FELT LITTLE TO NO BRAKING ACTION REMAINING. RT SIDE, LT BRAKE PEDAL NOMINAL. 
- [SDR 2009FA0001081](https://openairdocs.org/sdr/2009FA0001081), Dec 23, 2009: INDICATOR. FAILED. STANDBY ATTITUDE INDICATOR FAILED INFLIGHT, NO PREVIOUS PROBLEMS, NO TURBULANCE, SCREEN SHOWED "ATT FAIL 126 SEC".
- [SDR DXTA200811233370](https://openairdocs.org/sdr/DXTA200811233370), Nov 23, 2008: ACTUATOR. INOPERATIVE. AFTER TAKEOFF, GEAR WAS SELECTED TO THE UP POSITION. LT MAIN DOWNLOCK LIGHT (GREEN LIGHT) REMAINED ILLUMINATED. RED UNLOCKED LIGHT DID NOT REMAIN ILLUMINATED. R
- [SDR DXTA2008112403370](https://openairdocs.org/sdr/DXTA2008112403370), Nov 23, 2008: WARNING LIGHT. ILLUMINATED. AFTER TAKEOFF, GEAR WAS SELECTED TO THE UP POSITION. LT MAIN DOWNLOCK LIGHT (GREEN LIGHT) REMAINED ILLUMINATED.
- [SDR DXTA200803171](https://openairdocs.org/sdr/DXTA200803171), Jul 13, 2008: COMPUTER. FAILED. NR 2 AHRS FAILED IN FLIGHT. RT PFD DISPLAYED "ATT FAIL" AND "HDG FAIL" EMERGENCY CHECKLIST TAB V4 AND X1 COMPLIED WITH. REMOVED DEFECTIVE NR 2 AHRS UNIT. INSTAL
- [SDR DXTA200601454](https://openairdocs.org/sdr/DXTA200601454), Jun 24, 2006: WARNING LIGHT. ERRATIC. AIRCRAFT ON ACTIVE, PUSHED FOR TAKEOFF POWER, GOT FUEL GAUGE ANNUN LIGHT. TAXIED OFF RESET LIGHTS AND TOOK ACTIVE AGAIN WITHOUT PROBLEMS.
- [SDR CWQR2006003](https://openairdocs.org/sdr/CWQR2006003), Mar 8, 2006: DRAIN VALVE. LOOSE. FOUND THE STATIC SYSTEM DRAIN VALVE POPPET RETAING RING COMING LOOSE FROM VALVE BASE.

## 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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