# N9821: 1969 Bienenstein-Schreder HP-11A

- Status: Valid registration
- Airframe: [Bienenstein-Schreder HP-11A](https://openairdocs.org/model/bienenstein-schreder-hp-11a) (registry code 056035A, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: 19
- Year built: 1969
- Type: Glider
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: November 15, 1979
- Certificate issued: November 27, 2017
- Expires: November 30, 2027
- Mode S code: ADB50D
- Registered owner: [Johnson Mark C](https://openairdocs.org/faa-owner/JOHNSON%20MARK%20C)
- Location: [Spokane, WA](https://openairdocs.org/faa-place/WA/Spokane)
- Owner type: Individual
- Owner's area on the map: 47.5972° N, 117.3178° W: Placed by OpenAirDocs at the center of ZIP code 99223, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9821
- Page: https://openairdocs.org/aircraft/N9821

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): 0 in force

### Matched by airframe (Bienenstein-Schreder HP-11A)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N9821.

## FAA accident and incident reports

None matched to N9821.

## 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.

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N9821

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N9821 before.

- [Cancelled 1932-10-18](https://openairdocs.org/deregistered/N9821-1932-10-18): Travel Air C-4000, S/N 1041. Owner: [Emerson Richard](https://openairdocs.org/faa-owner/EMERSON%20RICHARD), [Duxbury, MA](https://openairdocs.org/faa-place/MA/Duxbury)

## Related

- Other Bienenstein-Schreder HP-11A aircraft: https://openairdocs.org/model/bienenstein-schreder-hp-11a/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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