# N4001B: Robinson Helicopter R22 MARINER, registration cancelled 2000-03-22

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 22, 2000
- Exported to: South Africa
- Status when cancelled: Second triennial mailing, no response
- Airframe: [Robinson Helicopter R22 MARINER](https://openairdocs.org/model/robinson-helicopter-r22-mariner) (registry code 7640115)
- Data sheets: [TCDS H10WE](https://openairdocs.org/tcds/H10WE) (OpenAirDocs)
- Serial number: 1388M
- Type of aircraft: Rotorcraft
- Certificate issued: April 16, 1991
- Last registry action: July 28, 1994
- Mode S code: A4AF1E
- Owner when cancelled: [Income Properties](https://openairdocs.org/faa-owner/INCOME%20PROPERTIES)
- Location: [Stockton, CA](https://openairdocs.org/faa-place/CA/Stockton)
- Owner type: Corporation
- Owner's area on the map: 37.9577° N, 121.2908° W: Placed by OpenAirDocs: center of Stockton, CA, within about 4 miles (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N4001B
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=4001B
- Page: https://openairdocs.org/deregistered/N4001B-2000-03-22

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 Robinson Helicopter R22 MARINER: https://openairdocs.org/model/robinson-helicopter-r22-mariner.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 LAX94LA374](https://openairdocs.org/ntsb/LAX94LA374), Sep 23, 1994: Robinson R-22 (N4001B), Chico, CA, substantial damage. Probable cause: the student pilot's improper use of the flight controls. The student pilot's lack of experience in the helicopter is a factor in this accident.

## 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 19940922029819A](https://openairdocs.org/incident/19940922029819A), Sep 22, 1994: Robsin R22BETA (N4001B), Chico, CA, Substantial damage. Supervised solo. Advised needed more cyclic sans CFI. Over used cyclio on liftoff. Right turn. Skid dug in. Rolled.

## Other aircraft with N4001B

- [Registered now](https://openairdocs.org/aircraft/N4001B): Head Balloons AX8-88, S/N 418, built 2012
- [Cancelled (date not recorded)](https://openairdocs.org/deregistered/N4001B-undated): Bellanca 17-31ATC, S/N 7431103. Triennial form not returned

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