# N85HB: 2022 Markowitz David B JUST FUN CAT

- Status: Valid registration
- Airframe: [Markowitz David B JUST FUN CAT](https://openairdocs.org/model/markowitz-david-b-just-fun-cat) (registry code 05640N5, 1 seats)
- Engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000)
- Serial number: CAT 1
- Year built: 2022
- Type: Balloon
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: March 19, 2022
- Certificate issued: January 5, 2022
- Expires: January 31, 2029
- Mode S code: ABA5B0
- Registered owner: [Markowitz David B](https://openairdocs.org/faa-owner/MARKOWITZ%20DAVID%20B)
- Location: [Maryland, NY](https://openairdocs.org/faa-place/NY/Maryland)
- Owner type: Individual
- Owner's area on the map: 42.5388° N, 74.9112° W: Placed by OpenAirDocs at the center of ZIP code 12116, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=85HB
- Page: https://openairdocs.org/aircraft/N85HB

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 (Markowitz David B JUST FUN CAT)

None in force.

### Matched by engine (NONE)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N85HB.

## FAA accident and incident reports

None matched to N85HB.

## 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 N85HB

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N85HB before.

- [Cancelled 2014-11-26](https://openairdocs.org/deregistered/N85HB-2014-11-26): Piper PA-31T, S/N 31T-8120021, built 1980. Registration expired, pending cancellation. Owner: [Spear Michael D](https://openairdocs.org/faa-owner/SPEAR%20MICHAEL%20D), [Columbia, MD](https://openairdocs.org/faa-place/MD/Columbia)

## Related

- Other Markowitz David B JUST FUN CAT aircraft: https://openairdocs.org/model/markowitz-david-b-just-fun-cat/aircraft.md
- The NONE engine: https://openairdocs.org/engine/none.md

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