# N11200: 1930 Waco ENF SPECIAL

- Status: Valid registration
- Airframe: [Waco ENF SPECIAL](https://openairdocs.org/model/waco-enf-special) (registry code 9600414, 3 seats)
- Engine: [Phillips 333 series](https://openairdocs.org/engine/phillips-333-series) (registry code 50001)
- Data sheets: [TCDS TC 2-430](https://openairdocs.org/tcds/TC%202-430) (The Waco Aircraft Company), [TCDS TC 59](https://openairdocs.org/tcds/TC%2059) (Phillips Aviation Company) (OpenAirDocs)
- Serial number: 3379
- Year built: 1930
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, research and development
- Certificate issued: February 7, 2020
- Expires: February 28, 2030
- Mode S code: A03612
- Registered owner: [Stoinoff Robert A III](https://openairdocs.org/faa-owner/STOINOFF%20ROBERT%20A%20III)
- Location: [Osgood, IN](https://openairdocs.org/faa-place/IN/Osgood)
- Owner type: Individual
- Owner's area on the map: 39.1695° N, 85.3257° W: Placed by OpenAirDocs at the center of ZIP code 47037, within about 5 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=11200
- Page: https://openairdocs.org/aircraft/N11200

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 Phillips 333 model are included.

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

### Matched by airframe (Waco ENF SPECIAL)

None in force.

### Matched by engine (Phillips 333 series)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N11200.

## FAA accident and incident reports

None matched to N11200.

## 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) (9)

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 (Waco ENF SPECIAL)

- [STC SA2693NM](https://openairdocs.org/stc/SA2693NM): Installation of Electronics International digital volt/amp gauges and accessories. Electronics International Inc
- [STC SA02033AT](https://openairdocs.org/stc/SA02033AT): Modification to install an air-oil separator to prevent oil from being aspirated from the engine breather line. M-20 Oil Separators LLC
- [STC SA2687NM](https://openairdocs.org/stc/SA2687NM): Installation of Truboplus/ Electronics Int'l gauges and switches. Aero Manufacturing Inc
- [STC SA1626NM PAGE 2](https://openairdocs.org/stc/SA1626NM%20PAGE%202): Installation of Electronics Int'l Digital EGT/CHT Instruments and accessories. (201 Series). Electronics International
- [STC SA2350NM PAGE 2](https://openairdocs.org/stc/SA2350NM%20PAGE%202): Installation of Electronics International Inc digital carburetor/outside air temperature gauges. Electronics International
- [STC SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International
- [STC SA2190NM PAGE 2](https://openairdocs.org/stc/SA2190NM%20PAGE%202): Installation of electronics International Digital Volt/Amp Gauges and Accessories. Electronics International
- [STC SA2350NM](https://openairdocs.org/stc/SA2350NM) (historical): Installation of Electronics International Inc digital carburetor/outside air temperature gauges listed on the attached continuation sheet and the associated accessories. Electronics International

### Approved for the engine (Phillips 333 series)

- [STC SE04651CH](https://openairdocs.org/stc/SE04651CH): To allow use of l00R grade aviation fuel meeting Swift Fuel, LLC specification SPEC-l00R-22. Swift Fuels LLC

## Earlier aircraft with N11200

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N11200 before.

- [Cancelled 1965-05-21](https://openairdocs.org/deregistered/N11200-1965-05-21): Beech C18S, S/N 6051. Owner: [Airplanes Inc](https://openairdocs.org/faa-owner/AIRPLANES%20INC), [Hominy, OK](https://openairdocs.org/faa-place/OK/Hominy)

## Related

- Other Waco ENF SPECIAL aircraft: https://openairdocs.org/model/waco-enf-special/aircraft.md
- The Phillips 333 series engine: https://openairdocs.org/engine/phillips-333-series.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.