# N9993Z: 1940 Grumman AF-2S

- Status: Valid registration
- Airframe: [Grumman AF-2S](https://openairdocs.org/model/grumman-af-2s) (registry code 3950104, 2 seats)
- Engine: [Pratt & Whitney R-2800 series](https://openairdocs.org/engine/pratt-whitney-r-2800-series) (registry code 52026)
- Data sheets: [TCDS AR-36](https://openairdocs.org/tcds/AR-36) (Aero Union Corporation) (OpenAirDocs)
- Serial number: 126731
- Year built: 1940
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Certificate issued: December 17, 2010
- Expires: December 31, 2029
- Mode S code: ADF6EB
- Registered owner: [Commemorative Air Force](https://openairdocs.org/faa-owner/COMMEMORATIVE%20AIR%20FORCE)
- Location: [Dallas, TX](https://openairdocs.org/faa-place/TX/Dallas)
- Owner type: Corporation
- Owner's area on the map: 32.7831° N, 96.8067° W: Placed by OpenAirDocs: center of Dallas, TX, within about 10 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=9993Z
- Page: https://openairdocs.org/aircraft/N9993Z

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. The registry lists only the engine series, so ADs for every Pratt & Whitney R-2800 model are included.

## ADs that may apply (OpenAirDocs): 0 in force

### Matched by airframe (Grumman AF-2S)

None in force.

### Matched by engine (Pratt & Whitney R-2800 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N9993Z.

## FAA accident and incident reports

None matched to N9993Z.

## 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) (3)

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 AF-2S)

- [STC SA5925NM](https://openairdocs.org/stc/SA5925NM): Installation of oil pressure/temperature instrument. Electronics International
- [STC SA5924NM](https://openairdocs.org/stc/SA5924NM): Installation of RPM instrument. Electronics International
- [STC SA5926NM](https://openairdocs.org/stc/SA5926NM): Installation of manifold pressure instrument. Electronics International

## Related

- Other Grumman AF-2S aircraft: https://openairdocs.org/model/grumman-af-2s/aircraft.md
- The Pratt & Whitney R-2800 series engine: https://openairdocs.org/engine/pratt-whitney-r-2800-series.md

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