# N17687: 1941 Monocoupe D145

- Status: Valid registration
- Airframe: [Monocoupe D145](https://openairdocs.org/model/monocoupe-d145) (registry code 9250512, 2 seats)
- Engine: [Warner SS40&50](https://openairdocs.org/engine/warner-ss40-50) (registry code 64503)
- Serial number: D-128
- Year built: 1941
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Standard
- Airworthiness date: June 5, 1957
- Certificate issued: March 23, 1976
- Expires: January 31, 2030
- Mode S code: A13307
- Registered owner: [Lerille Red](https://openairdocs.org/faa-owner/LERILLE%20RED)
- Location: [Lafayette, LA](https://openairdocs.org/faa-place/LA/Lafayette)
- Owner type: Individual
- Owner's area on the map: 30.1718° N, 92.0545° W: Placed by OpenAirDocs at the center of ZIP code 70503, 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=17687
- Page: https://openairdocs.org/aircraft/N17687

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 (Monocoupe D145)

None in force.

### Matched by engine (Warner SS40&50)

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 FTW91LA052](https://openairdocs.org/ntsb/FTW91LA052), Mar 19, 1991: Monocoupe D145 (N17687), Lafayette, LA, substantial damage. Probable cause: THE PILOT'S FAILURE TO MAINTAIN DIRECTIONAL CONTROL OF THE AIRPLANE.

## 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 19910319006219A](https://openairdocs.org/incident/19910319006219A), Mar 19, 1991: Unipro MONOCOUPD145 (N17687), Lafayette, LA, Substantial damage. Pilot reported his foot slipped off rudder on landing. Added power,lifted,rolled left and impacted nose first.

## 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)

None matched to this aircraft's models.

## Related

- Other Monocoupe D145 aircraft: https://openairdocs.org/model/monocoupe-d145/aircraft.md
- The Warner SS40&50 engine: https://openairdocs.org/engine/warner-ss40-50.md

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