# N620JF: 2025 Schempp-Hirth Flugzeugbau DUO DISCUS

- Status: Valid registration
- Airframe: [Schempp-Hirth Flugzeugbau DUO DISCUS](https://openairdocs.org/model/schempp-hirth-flugzeugbau-duo-discus) (registry code 3801942, 1 seats)
- Engine: [Schemp Hir FES-DUO-M 100](https://openairdocs.org/engine/schemp-hir-fes-duo-m-100) (registry code 33707)
- Data sheets: [TCDS G85EU](https://openairdocs.org/tcds/G85EU) (Schempp-Hirth Flugzeugbau GmbH) (OpenAirDocs)
- Serial number: 004
- Year built: 2025
- Type: Glider
- Engine type: Electric
- Airworthiness: Experimental, exhibition, racing
- Airworthiness date: August 12, 2025
- Certificate issued: July 29, 2025
- Expires: July 31, 2032
- Mode S code: A8170B
- Registered owner: [Duo D LLC](https://openairdocs.org/faa-owner/DUO%20D%20LLC)
- Location: [Salem, VA](https://openairdocs.org/faa-place/VA/Salem)
- Owner type: LLC
- Owner's area on the map: 37.3034° N, 80.1131° W: Placed by OpenAirDocs at the center of ZIP code 24153, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=620JF
- Page: https://openairdocs.org/aircraft/N620JF

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): 7 in force

### Matched by airframe (Schempp-Hirth Flugzeugbau DUO DISCUS)

- [AD 2025-04-14](https://openairdocs.org/ad/2025-04-14): Passenger/Crew Doors · Schempp-Hirth Flugzeugbau Duo-Discus and Duo Discus T. Effective Apr 8, 2025
- [AD 2023-03-14](https://openairdocs.org/ad/2023-03-14): Drag Control System · Schempp-Hirth Flugzeugbau Duo-Discus and Duo Discus T. Effective Apr 5, 2023
- [AD 2023-03-10](https://openairdocs.org/ad/2023-03-10): Elevator Control System · Schempp-Hirth Flugzeugbau Duo-Discus and Duo Discus T. Effective Feb 24, 2023
- [AD 2021-26-25](https://openairdocs.org/ad/2021-26-25): Drag Control System · Schempp-Hirth Flugzeugbau Duo-Discus and Duo Discus T. Effective Feb 24, 2022
- [AD 2015-20-11](https://openairdocs.org/ad/2015-20-11): Flight controls · Schempp-Hirth Flugzeugbau Duo-Discus and Duo Discus T. Effective Nov 18, 2015
- [AD 2004-24-11](https://openairdocs.org/ad/2004-24-11): Spar cap and spar web · Schempp-Hirth Flugzeugbau Duo-Discus. Effective Dec 30, 2004
- [AD 2003-16-51](https://openairdocs.org/ad/2003-16-51): Spar cap · Schempp-Hirth Flugzeugbau Duo-Discus. Effective Aug 20, 2003

### Matched by engine (Schemp Hir FES-DUO-M 100)

None in force.

## Information bulletins (advisory) (1 in force)

- [SAIB CE-08-07](https://openairdocs.org/saib/CE-08-07): Doors. Issued Nov 26, 2007

## NTSB investigations

None matched to N620JF.

## FAA accident and incident reports

None matched to N620JF.

## Service difficulty reports

None filed for this aircraft. Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.

## Service difficulty reports on N620JF not matched to an aircraft (3)

They name N620JF, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR 1SWA2016032800103](https://openairdocs.org/sdr/1SWA2016032800103), Mar 25, 2016: COWLING. CRACKED. WHILE COMPLYING WITH CMP 711016, FOUND RT ENG UPPER COWL LE TO BE CRACKED & TO HAVE LOOSE CARBON FIBER MATERIAL SHOWING. INSPECTED & TAP TEST RT ENG UPPER COWL 
- [SDR 1SWA201401020042](https://openairdocs.org/sdr/1SWA201401020042), Dec 27, 2013: WINDSHIELD. CRACKED. DURING DESCENT, THE LEFT WINDSHIELD OUTER GLASS PLY CRACKED IN MULTIPLE DIRECTIONS. THE INNER STRUCTURAL PLIES REMAINED IN TACT WITH NO DAMAGE. THE WINDSHIELD W
- [SDR CVG2008F00002](https://openairdocs.org/sdr/CVG2008F00002), Oct 6, 2008: PUMP. FAILED. WHILE CLIMBING OUT OF FL390 THE CREW NOTICED A VIBRATION SHORTLY FOLLOWED BY A CYAN L ENG HYD PUMP FAIL EICAS MSG. THE CREW VERIFIED THE PUMP FAILURE ON THE HYD

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Related

- Other Schempp-Hirth Flugzeugbau DUO DISCUS aircraft: https://openairdocs.org/model/schempp-hirth-flugzeugbau-duo-discus/aircraft.md
- The Schemp Hir FES-DUO-M 100 engine: https://openairdocs.org/engine/schemp-hir-fes-duo-m-100.md

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