# N8584: Waco CTO

- Status: Valid registration
- Airframe: [Waco CTO](https://openairdocs.org/model/waco-cto) (registry code 9601214, 3 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Data sheets: [TCDS ATC 257](https://openairdocs.org/tcds/ATC%20257) (The Waco Aircraft Company) (OpenAirDocs)
- Serial number: A98
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: May 4, 1991
- Certificate issued: June 4, 2013
- Expires: June 30, 2029
- Mode S code: ABC7F4
- Registered owner: [S C Johnson & Son Inc](https://openairdocs.org/faa-owner/S%20C%20JOHNSON%20%26%20SON%20INC)
- Location: [Racine, WI](https://openairdocs.org/faa-place/WI/Racine)
- Owner type: Corporation
- Owner's area on the map: 42.7608° N, 87.8153° W: Placed by OpenAirDocs at the center of ZIP code 53404, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=8584
- Page: https://openairdocs.org/aircraft/N8584

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 (Waco CTO)

None in force.

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

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N8584.

## NTSB investigations on N8584 not matched to an aircraft (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 FTW82DA047](https://openairdocs.org/ntsb/FTW82DA047), Jan 23, 1982: Grumman G-164A (N8584), Hobbs, NM, destroyed

## 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.

- [Incident 19910606024749I](https://openairdocs.org/incident/19910606024749I), Jun 6, 1991: Waco S3HD (N8584), Westville, NY, Minor damage. On landing aircraft veered right then left. Right gear had collapsed. Suspect internal tubing corrosion.

## 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) (5)

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 CTO)

- [STC SA04652CH](https://openairdocs.org/stc/SA04652CH): To allow use of 100R grade aviation fuel meeting Swift Fuel, LLC specification. Swift Fuels LLC
- [STC SA4503NM](https://openairdocs.org/stc/SA4503NM): Remove original cloth covering and install Ceconite covering. Ceconite Division of Poly-Fiber Inc
- [STC SA01406NY](https://openairdocs.org/stc/SA01406NY): Installation of Airwolf remote mounted engine oil filter kit AFC-K017 on single and multi-engine fixed light aircraft and rotary wing. Airwolf Filter Corporation
- [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 SA4302NM](https://openairdocs.org/stc/SA4302NM): Installation of Electronics Int'l digital automatic engine analyzer. Electronics International

## Related

- Other Waco CTO aircraft: https://openairdocs.org/model/waco-cto/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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