# N8146: 1940 Ryan Aeronautical ST-A SPECIAL

- Status: Valid registration
- Airframe: [Ryan Aeronautical ST-A SPECIAL](https://openairdocs.org/model/ryan-aeronautical-st-a-special) (registry code 7830404, 2 seats)
- Engine: [Menasco PIRATE C4S](https://openairdocs.org/engine/menasco-pirate-c4s) (registry code 43505)
- Data sheets: [TCDS ATC 681](https://openairdocs.org/tcds/ATC%20681) (Ryan Aeronautical Company), [TCDS TC 134](https://openairdocs.org/tcds/TC%20134) (Menasco Manufacturing Co.) (OpenAirDocs)
- Serial number: 457
- Year built: 1940
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: July 6, 1970
- Certificate issued: June 11, 1999
- Expires: September 30, 2027
- Mode S code: AB1B62
- Registered owner: [Kozak Gary D](https://openairdocs.org/faa-owner/KOZAK%20GARY%20D)
- Location: [Downers Grove, IL](https://openairdocs.org/faa-place/IL/Downers%20Grove)
- Owner type: Individual
- Owner's area on the map: 41.7613° N, 88.0134° W: Placed by OpenAirDocs at the center of ZIP code 60516, within about 2 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=8146
- Page: https://openairdocs.org/aircraft/N8146

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): 1 in force

### Matched by airframe (Ryan Aeronautical ST-A SPECIAL)

None in force.

### Matched by engine (Menasco PIRATE C4S)

- [AD 69-09-01](https://openairdocs.org/ad/69-09-01): Eisemann Magnetos · Eisemann Magnetos, 2A4-45-B2, 2A4-49-B2 and 158 more

## Information bulletins (advisory)

None matched.

## NTSB investigations (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI75FEE69](https://openairdocs.org/ntsb/CHI75FEE69), Jun 21, 1975: Ryan ST-A (N8146), Belvidere, IL, substantial damage

## FAA accident and incident reports (2)

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 19781021029329I](https://openairdocs.org/incident/19781021029329I), Oct 21, 1978: Ryan STA (N8146), Waukegan, IL, Minor damage. Engine quit at 2000 ft. AGL. During climb due to dirt in the carburetor.
- [Accident 19750621028121A](https://openairdocs.org/incident/19750621028121A), Jun 21, 1975: Ryan STASPECIAL (N8146), Belvidere, IL, Substantial damage. Airport congestion due to uncontrolled mix of diverse opns. Plt demonstrating acft to pax.

## 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 (Ryan Aeronautical ST-A SPECIAL)

- [STC SA00680SE](https://openairdocs.org/stc/SA00680SE): Installation of Electronics International model UBG-16 or UBG-16T bar graph engine analyzer. Electronics International
- [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 SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

## Earlier aircraft with N8146

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N8146 before.

- [Cancelled 1949-03-31](https://openairdocs.org/deregistered/N8146-1949-03-31): Cessna AW, S/N 161. Owner: [Goodale George C](https://openairdocs.org/faa-owner/GOODALE%20GEORGE%20C), [Dayton, OH](https://openairdocs.org/faa-place/OH/Dayton)

## Related

- Other Ryan Aeronautical ST-A SPECIAL aircraft: https://openairdocs.org/model/ryan-aeronautical-st-a-special/aircraft.md
- The Menasco PIRATE C4S engine: https://openairdocs.org/engine/menasco-pirate-c4s.md

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