# N8511X: 1981 Grossman Murray A MIDGET MUSTANG-I

- Status: Valid registration
- Airframe: [Grossman Murray A MIDGET MUSTANG-I](https://openairdocs.org/model/grossman-murray-a-midget-mustang-i) (registry code 1690355, 1 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 399
- Year built: 1981
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: January 19, 1982
- Certificate issued: December 9, 2009
- Expires: February 28, 2029
- Mode S code: ABADA0
- Registered owner: [Zumbrun Dennis L](https://openairdocs.org/faa-owner/ZUMBRUN%20DENNIS%20L)
- Location: [Montz, LA](https://openairdocs.org/faa-place/LA/Montz)
- Owner type: Individual
- Owner's area on the map: 30.1563° N, 90.4368° W: Placed by OpenAirDocs at the center of ZIP code 70068, 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=8511X
- Page: https://openairdocs.org/aircraft/N8511X

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 (Grossman Murray A MIDGET MUSTANG-I)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N8511X.

## FAA accident and incident reports (3)

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [Incident 19850816067319I](https://openairdocs.org/incident/19850816067319I), Aug 16, 1985: Amtrbb MUSTANGMIDGT (N8511X), Pontiac, MI, Minor damage. Failed to add full power on go around attempt. Lost directional control and veered off runway.
- [Incident 19820424019109I](https://openairdocs.org/incident/19820424019109I), Apr 24, 1982: Amtrbb MUSTANGMIDGT (N8511X), Pontiac, MI, Minor damage. Fixed landing gear collapsed while practicing touch and go landings. Landing gear torque tube failed.
- [Incident 19810520035209I](https://openairdocs.org/incident/19810520035209I), May 20, 1981: Amtrbb MUSTANGMIDGT (N8511X), Pontiac, MI, Minor damage. Zd pilot overcontrolled during landing. Departed runway to the left and nosed up in soft ground with prop damage.

## 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.

## Related

- Other Grossman Murray A MIDGET MUSTANG-I aircraft: https://openairdocs.org/model/grossman-murray-a-midget-mustang-i/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.