# N18629: Monocoupe 110

- Status: Valid registration
- Airframe: [Monocoupe 110](https://openairdocs.org/model/monocoupe-110) (registry code 5810202, 2 seats)
- Engine: [Warner SCARAB series](https://openairdocs.org/engine/warner-scarab-series) (registry code 64502)
- Serial number: 6W00
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: July 27, 1959
- Certificate issued: May 24, 2019
- Expires: May 31, 2029
- Mode S code: A159B6
- Registered owners: [Bowe Walter C Trustee](https://openairdocs.org/faa-owner/BOWE%20WALTER%20C%20TRUSTEE), [Mendieta Carlene A Trustee](https://openairdocs.org/faa-owner/MENDIETA%20CARLENE%20A%20TRUSTEE)
- Location: [Sonoma, CA](https://openairdocs.org/faa-place/CA/Sonoma)
- Owner type: Co-owned
- Owner's area on the map: 38.2558° N, 122.4609° W: Placed by OpenAirDocs at the center of ZIP code 95476, within about 6 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=18629
- Page: https://openairdocs.org/aircraft/N18629

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 Warner SCARAB model are included.

## ADs that may apply (OpenAirDocs): 1 in force

### Matched by airframe (Monocoupe 110)

None in force.

### Matched by engine (Warner SCARAB series)

- [AD 51-04-02](https://openairdocs.org/ad/51-04-02): Cylinder Holddown Studs · Warner Engine Scarab Jr. Series 40, Scarab Jr. Series 50, Scarab Series 28 and 13 more

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N18629.

## FAA accident and incident reports

None matched to N18629.

## 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 engine (Warner SCARAB 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. Lists Scarab Jr. Series 40
- [STC SE01966WI](https://openairdocs.org/stc/SE01966WI): Use of GAMI G100UL High Octane Unleaded Avgas in spark ignition piston aircraft engines. General Aviation Modifications Inc. Lists Scarab Jr. Series 40
- [STC SE2591 CE](https://openairdocs.org/stc/SE2591%20CE): Add unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index(RON + MON)/2, per ASTM Specification D-439. Petersen Aviation Inc. Lists Scarab Series 28
- [STC SE2591CE](https://openairdocs.org/stc/SE2591CE): Add unleaded automotive gasoline, 87 minimum antiknock index and leaded automotive gasoline, 88 minimum antiknock index(RON + MON)/2, per ASTM Specification D-439. Petersen Aviation Inc. Lists Scarab Series 28
- [STC SE4601SW](https://openairdocs.org/stc/SE4601SW): Modify intake and exhaust valves. Daily Tubbs Aero, Inc. Lists Scarab Series 40

## Related

- Other Monocoupe 110 aircraft: https://openairdocs.org/model/monocoupe-110/aircraft.md
- The Warner SCARAB series engine: https://openairdocs.org/engine/warner-scarab-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.