# N18904: 1938 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 C4 D4](https://openairdocs.org/engine/menasco-pirate-c4-d4) (registry code 43504)
- Data sheets: [TCDS ATC 681](https://openairdocs.org/tcds/ATC%20681) (Ryan Aeronautical Company) (OpenAirDocs)
- Serial number: 188
- Year built: 1938
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: September 20, 1960
- Certificate issued: December 3, 2007
- Expires: February 28, 2029
- Mode S code: A16490
- Registered owner: [Miller James L](https://openairdocs.org/faa-owner/MILLER%20JAMES%20L)
- Location: [Blue Springs, MO](https://openairdocs.org/faa-place/MO/Blue%20Springs)
- Owner type: Individual
- Owner's area on the map: 39.0094° N, 94.2569° W: Placed by OpenAirDocs at the center of ZIP code 64014, 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=18904
- Page: https://openairdocs.org/aircraft/N18904

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 (Ryan Aeronautical ST-A SPECIAL)

None in force.

### Matched by engine (Menasco PIRATE C4 D4)

None in force.

## 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 MIA99LA154](https://openairdocs.org/ntsb/MIA99LA154), May 9, 1999: Ryan ST-A (N18904), Leesburg, FL, substantial damage. Probable cause: The pilot's failure to maintain adequate clearance from the fence.

## FAA accident and incident reports (1)

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.

- [Accident 19990509020449A](https://openairdocs.org/incident/19990509020449A), May 9, 1999: Ryan STASPECIAL (N18904), Leesburg, FL, Substantial damage. On may 9, 1999, about 1215 eastern daylight time, a Ryan st-a, N18904, registered to a private individual, impacted with a fence during takeoff from a private…

## 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

## Related

- Other Ryan Aeronautical ST-A SPECIAL aircraft: https://openairdocs.org/model/ryan-aeronautical-st-a-special/aircraft.md
- The Menasco PIRATE C4 D4 engine: https://openairdocs.org/engine/menasco-pirate-c4-d4.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.