# N37751: Siegenfield Harold KR-2, registration cancelled 2013-07-10

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: July 10, 2013
- Status when cancelled: Sale reported, canceled
- Airframe: [Siegenfield Harold KR-2](https://openairdocs.org/model/siegenfield-harold-kr-2) (registry code 05648EL)
- Engine: [Revmaster 2100](https://openairdocs.org/engine/revmaster-2100) (registry code 52550)
- Serial number: 3498
- Type of aircraft: Fixed wing single engine
- Engine type: Reciprocating
- Airworthiness: Experimental, amateur built
- Airworthiness date: October 30, 1986
- Last registry action: May 28, 2010
- Mode S code: A450ED
- Location: [Rialto, CA](https://openairdocs.org/faa-place/CA/Rialto)
- Owner type: Individual
- Owner's area on the map: 34.1524° N, 117.4041° W: Placed by OpenAirDocs at the center of ZIP code 92377, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N37751
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=37751
- Page: https://openairdocs.org/deregistered/N37751-2013-07-10

From the FAA registry file of October 29, 2026, cancelled registrations. Owners' street addresses are left out. The Mode S code belongs to the N-number, not the airframe.

ADs and bulletins for the Siegenfield Harold KR-2: https://openairdocs.org/model/siegenfield-harold-kr-2.md

## FAA accident and incident reports (2)

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 19850818049509I](https://openairdocs.org/incident/19850818049509I), Aug 18, 1985: Amtr KR2 (N37751), Oceanside, CA, Minor damage. Bounced and ran off runway, turned and went up on nose. Pilot and airplane were not properly certificated.
- [Incident 19810307013709I](https://openairdocs.org/incident/19810307013709I), Mar 7, 1981: Amtrra KR2 (N37751), Chino, CA, Minor damage. During the first flight of homebuilt aircraft the right gear collapsed on takeoff run.

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