# N933B: not currently registered

- Registered now: No (not in the FAA registry file). The mark may be reserved or free to assign
- Earlier aircraft: 1
- Last cancelled: June 30, 2017
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=933B
- Page: https://openairdocs.org/aircraft/N933B

## Aircraft that carried N933B

- [Cancelled 2017-06-30](https://openairdocs.org/deregistered/N933B-2017-06-30): Bell 47G, S/N 662. Registration expired, pending cancellation. Owner: [B And S Flying Svc Inc](https://openairdocs.org/faa-owner/B%20AND%20S%20FLYING%20SVC%20INC), [Ardmore, OK](https://openairdocs.org/faa-place/OK/Ardmore)

## NTSB investigations on N933B (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 FTW94LA166](https://openairdocs.org/ntsb/FTW94LA166), May 18, 1994: Bell 47G (N933B), Sulphur, OK, substantial damage. Probable cause: THE LOSS OF ENGINE POWER DUE TO THE FAILURE OF AN ENGINE ACCESSORY OIL PUMP GEAR. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE AUTOROTATION.
- [NTSB OAK76DVM08](https://openairdocs.org/ntsb/OAK76DVM08), Aug 20, 1975: Bell 47G (N933B), King City, CA, substantial damage

## FAA accident and incident reports on N933B (3)

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 19940518011819A](https://openairdocs.org/incident/19940518011819A), May 18, 1994: Bell 47G (N933B), Sulphur, OK, Substantial damage. Engine failed on spray run pullup. Unable full autoratation. Hard impact. Cut tailboom. Oil pump drive gear failed.
- [Incident 19780202005569I](https://openairdocs.org/incident/19780202005569I), Feb 2, 1978: Bell 47G (N933B), Huron, CA, Minor damage. Helicopters engine quit after refueling from nurse rig. Fuel pumped from barrell. Contained rusty water.
- [Accident 19750820028299A](https://openairdocs.org/incident/19750820028299A), Aug 20, 1975: Bell 47G (N933B), King City, CA, Substantial damage. Main rotors severed tail boom.

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