# N6399U: 2001 Wiltrout Kenneth L KR-2S

- Status: Valid registration
- Airframe: [Wiltrout Kenneth L KR-2S](https://openairdocs.org/model/wiltrout-kenneth-l-kr-2s) (registry code 05607MO, 2 seats)
- Engine: [Volkswagen CONVERSION](https://openairdocs.org/engine/volkswagen-conversion) (registry code 63501)
- Serial number: 514
- Year built: 2001
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Kit: Rand Robinson Eng Inc KR-2S
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 1, 2001
- Certificate issued: March 19, 2025
- Expires: March 31, 2032
- Mode S code: A862D1
- Registered owner: [Ashmore Paul A](https://openairdocs.org/faa-owner/ASHMORE%20PAUL%20A)
- Location: [Sioux Falls, SD](https://openairdocs.org/faa-place/SD/Sioux%20Falls)
- Owner type: Individual
- Owner's area on the map: 43.6030° N, 96.7043° W: Placed by OpenAirDocs at the center of ZIP code 57104, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft is based
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=6399U
- Page: https://openairdocs.org/aircraft/N6399U

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 (Wiltrout Kenneth L KR-2S)

None in force.

### Matched by engine (Volkswagen CONVERSION)

None in force.

## Information bulletins (advisory)

None matched.

## NTSB investigations

None matched to N6399U.

## NTSB investigations on N6399U not matched to an aircraft (2)

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 DCA84AA034](https://openairdocs.org/ntsb/DCA84AA034), Aug 24, 1984: Beech C-99 (N6399U), San Luis Obispo, CA, destroyed, 17 fatal
- [NTSB IAD75FLQ17](https://openairdocs.org/ntsb/IAD75FLQ17), Mar 3, 1975: Aero Comdr 500B (N6399U), Louisville, KY, substantial damage

## FAA accident and incident reports

None matched to N6399U.

## Reports on N6399U not matched to an aircraft (3)

They name N6399U, but no registry record covers the date, the aircraft registered then was built later, or the report describes another aircraft.

- [Accident 19840824076851A](https://openairdocs.org/incident/19840824076851A), Aug 24, 1984: Beech C99 (N6399U), San Luis Obispo, CA, Destroyed, 13 fatal. Collided head on with N112SM while climbing. Impacted ground and burned. Had quit monitoring UNICOM frequency.
- [Incident 19821109068149I](https://openairdocs.org/incident/19821109068149I), Nov 9, 1982: Beech C99 (N6399U), Oxnard, CA, Minor damage. Cells on airborne radar. Airplane was hit by lightning after deviation request. Hole burned in wing and propeller.
- [Accident 19750303007659A](https://openairdocs.org/incident/19750303007659A), Mar 3, 1975: Rkwell 500B (N6399U), Louisville, KY, Substantial damage. Collided with unattended DC3 N11BC.damaged rightwing and vertical stabilizer.

## 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.

## Earlier aircraft with N6399U

The FAA can reassign an N-number once a registration is cancelled. These aircraft carried N6399U before.

- [Cancelled 1980-06-20](https://openairdocs.org/deregistered/N6399U-1980-06-20): Cessna U206G, S/N U20605477. Exported to Australia. Owner: [Transair Inc](https://openairdocs.org/faa-owner/TRANSAIR%20INC), [Oakland, CA](https://openairdocs.org/faa-place/CA/Oakland)
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N6399U-undated): Beech C-99, S/N U187. Triennial form not returned

## Related

- Other Wiltrout Kenneth L KR-2S aircraft: https://openairdocs.org/model/wiltrout-kenneth-l-kr-2s/aircraft.md
- The Volkswagen CONVERSION engine: https://openairdocs.org/engine/volkswagen-conversion.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.