# N51ZD: 1954 Grumman Aircraft ENG G-111

- Status: Valid registration
- Airframe: [Grumman Aircraft ENG G-111](https://openairdocs.org/model/grumman-aircraft-eng-g-111) (registry code 3950410, 27 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Data sheets: [TCDS A22SO](https://openairdocs.org/tcds/A22SO) (Amphibian Aerospace Industries Inc.) (OpenAirDocs)
- Serial number: 137901
- Year built: 1954
- Type: Fixed wing multi engine
- Engine type: Reciprocating
- Airworthiness: Standard, transport
- Airworthiness date: June 15, 1983
- Certificate issued: July 2, 2008
- Expires: December 31, 2027
- Mode S code: A66159
- Registered owner: [Nimbus Aviation LLC](https://openairdocs.org/faa-owner/NIMBUS%20AVIATION%20LLC)
- Location: [Ponte Vedra Beach, FL](https://openairdocs.org/faa-place/FL/Ponte%20Vedra%20Beach)
- Owner type: LLC
- Owner's area on the map: 30.1116° N, 81.3717° W: Placed by OpenAirDocs at the center of ZIP code 32082, 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=51ZD
- Page: https://openairdocs.org/aircraft/N51ZD

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 (Grumman Aircraft ENG G-111)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N51ZD.

## FAA accident and incident reports

None matched to N51ZD.

## 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) (4)

Approved for this aircraft's airframe or engine model, in force first, then newest. The registry doesn't record which STCs an aircraft has; its records do.

### Approved for the airframe (Grumman Aircraft ENG G-111)

- [STC SA2622NM](https://openairdocs.org/stc/SA2622NM): Installation of Precise Flight Pulselite Control Unit in landing/taxi system. (767-200 B17) (DHC-8 101). Precise Flight Inc
- [STC ST04076CH](https://openairdocs.org/stc/ST04076CH): Deletion of the windshield wiper system. Brian Van Wagnen
- [STC ST01797WI](https://openairdocs.org/stc/ST01797WI): Interior Installation. Duncan Aviation Inc
- [STC SA2031SO](https://openairdocs.org/stc/SA2031SO): Installation of Emergency Escape Path Lighting System. Jetaire Services Inc

## Related

- Other Grumman Aircraft ENG G-111 aircraft: https://openairdocs.org/model/grumman-aircraft-eng-g-111/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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