# N939B: 2008 Moorhouse Randall GATSBY C7

- Status: Valid registration
- Airframe: [Moorhouse Randall GATSBY C7](https://openairdocs.org/model/moorhouse-randall-gatsby-c7) (registry code 056260W, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 7451896
- Year built: 2008
- Type: Balloon
- Engine type: None
- Airworthiness: Experimental, amateur built
- Airworthiness date: September 16, 2009
- Certificate issued: July 27, 2015
- Expires: July 31, 2028
- Mode S code: AD0731
- Registered owner: [Rathke Thomas H](https://openairdocs.org/faa-owner/RATHKE%20THOMAS%20H)
- Location: [Layton, UT](https://openairdocs.org/faa-place/UT/Layton)
- Owner type: Individual
- Owner's area on the map: 41.0916° N, 111.8974° W: Placed by OpenAirDocs at the center of ZIP code 84040, 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=939B
- Page: https://openairdocs.org/aircraft/N939B

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 (Moorhouse Randall GATSBY C7)

None in force.

### Matched by engine (Amateur-built UNKNOWN ENG)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N939B.

## FAA accident and incident reports

None matched to N939B.

## 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 N939B not matched to an aircraft (1)

They name N939B, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [SDR ALGAASR8579](https://openairdocs.org/sdr/ALGAASR8579), Sep 1, 2022: FIRE WARNING. FALSE INDICATION. AFTER LEVELING OFF AT 5000 FT THE NO 1 FIRE DET LIGHT IS ILLUMINATED. WE VERIFIED THERE WERE NO INSTRUMENT INDICATIONS OF A FIRE IN THE NO 1 ENGINE AND CONSULTE

## STCs that may be installed (OpenAirDocs)

None matched to this aircraft's models.

## Earlier aircraft with N939B

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N939B before.

- [Cancelled 1988-09-28](https://openairdocs.org/deregistered/N939B-1988-09-28): Bell 47G, S/N 670. Triennial form not returned

## Related

- Other Moorhouse Randall GATSBY C7 aircraft: https://openairdocs.org/model/moorhouse-randall-gatsby-c7/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.