# N4070H: 1991 Robinson Helicopter R22 BETA, registration cancelled 2013-10-29

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: October 29, 2013
- Status when cancelled: Registration expired, pending cancellation
- Airframe: [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta) (registry code 7640110)
- Engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508)
- Data sheets: [TCDS H10WE](https://openairdocs.org/tcds/H10WE), [TCDS E-274](https://openairdocs.org/tcds/E-274) (OpenAirDocs)
- Serial number: 1727
- Year built: 1991
- Type of aircraft: Rotorcraft
- Engine type: Reciprocating
- Airworthiness: Standard, normal
- Airworthiness date: March 20, 1991
- Certificate issued: June 22, 1991
- Last registry action: February 4, 1998
- Mode S code: A4C902
- Owner when cancelled: [Mendoza Akira](https://openairdocs.org/faa-owner/MENDOZA%20AKIRA)
- Location: [Riverside, CA](https://openairdocs.org/faa-place/CA/Riverside)
- Owner type: Individual
- Owner's area on the map: 33.9084° N, 117.4013° W: Placed by OpenAirDocs at the center of ZIP code 92504, within about 3 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4070H
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4070H
- Page: https://openairdocs.org/deregistered/N4070H-2013-10-29

From the FAA registry file of October 31, 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 Robinson Helicopter R22 BETA: https://openairdocs.org/model/robinson-helicopter-r22-beta.md

## 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 LAX91LA307](https://openairdocs.org/ntsb/LAX91LA307), Jul 11, 1991: Robinson R22A (N4070H), El Cerrito, CA, substantial damage. Probable cause: THE INSTRUCTOR PILOT'S IMPROPER SLOPE TAKEOFF TECHNIQUE.

## 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 19931001043489I](https://openairdocs.org/incident/19931001043489I), Oct 1, 1993: Robsin R22BETA (N4070H), Lake Mathews, CA, Minor damage. Low rotor RPM during termination of normal approach. Pilot reacted by reducing power instad of incrasing throttle.
- [Accident 19910711027089A](https://openairdocs.org/incident/19910711027089A), Jul 11, 1991: Robsin R22ALPHA (N4070H), El Cerrito, CA, Substantial damage. Student made slope landing. CFI took control tried to raise to hover but rolled over. One skid caught under a rock.

## Other aircraft with N4070H

- [Cancelled 1989-09-06](https://openairdocs.org/deregistered/N4070H-1989-09-06): Mooney M20J, S/N 241049. Triennial form not returned
- [Cancelled 1947-11-10](https://openairdocs.org/deregistered/N4070H-1947-11-10): Piper PA-12, S/N 12-3498. Exported to Argentina. Owner: [Piper Aircraft Corporation](https://openairdocs.org/faa-owner/PIPER%20AIRCRAFT%20CORPORATION), [Lock Haven, PA](https://openairdocs.org/faa-place/PA/Lock%20Haven)

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