# N811RJ: 2007 Sauer Robert E KR2S

- Status: Valid registration
- Airframe: [Sauer Robert E KR2S](https://openairdocs.org/model/sauer-robert-e-kr2s) (registry code 056157C, 2 seats)
- Engine: [Amateur-built UNKNOWN ENG](https://openairdocs.org/engine/amateur-built-unknown-eng) (registry code 99999)
- Serial number: 001
- Year built: 2007
- Type: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: May 17, 2007
- Certificate issued: April 21, 2025
- Expires: April 30, 2032
- Mode S code: AB0E93
- Registered owner: [Sauer Robert E](https://openairdocs.org/faa-owner/SAUER%20ROBERT%20E)
- Location: [Sun City West, AZ](https://openairdocs.org/faa-place/AZ/Sun%20City%20West)
- Owner type: Individual
- Owner's area on the map: 33.6714° N, 112.3572° W: Placed by OpenAirDocs at the center of ZIP code 85375, 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=811RJ
- Page: https://openairdocs.org/aircraft/N811RJ

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 (Sauer Robert E KR2S)

None in force.

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

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 WPR10LA039](https://openairdocs.org/ntsb/WPR10LA039), Oct 30, 2009: Sauer KR-2S (N811RJ), Glendale, AZ, substantial damage. Probable cause: A loss of engine power due to fuel starvation as a result of a reduced fuel flow to the engine resulting from a misrouted fuel tank vent line, during initial climb.

## 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 20091030023179A](https://openairdocs.org/incident/20091030023179A), Oct 30, 2009: Amtr KR2S (N811RJ), Glendale, AZ, Substantial damage. On October 30, 2009 at approximately 1100 MST, N811RJ, a experimental sauer KR2S, with [privacy data omitted] performing as the pilot in command, took off from…

## 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 Sauer Robert E KR2S aircraft: https://openairdocs.org/model/sauer-robert-e-kr2s/aircraft.md
- The Amateur-built UNKNOWN ENG engine: https://openairdocs.org/engine/amateur-built-unknown-eng.md

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