# N843M: 1963 Bell UH-1B, registration cancelled 2010-03-30

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 30, 2010
- Status when cancelled: Triennial form not returned
- Airframe: [Bell UH-1B](https://openairdocs.org/model/bell-uh-1b) (registry code 1181410)
- Engine: [Lycoming T-53 series](https://openairdocs.org/engine/lycoming-t-53-series) (registry code 41552)
- Serial number: 63-8676
- Year built: 1963
- Type of aircraft: Rotorcraft
- Engine type: Turbo-shaft
- Airworthiness: Restricted, agriculture and pest control, forest, other, aerial surveying, patrolling
- Airworthiness date: March 12, 2003
- Certificate issued: January 12, 1994
- Last registry action: January 20, 2009
- Mode S code: AB8C11
- Owner when cancelled: [Avag Inc](https://openairdocs.org/faa-owner/AVAG%20INC)
- Location: [Richvale, CA](https://openairdocs.org/faa-place/CA/Richvale)
- Owner type: Corporation
- Owner's area on the map: 39.4973° N, 121.7557° W: Placed by OpenAirDocs at the center of ZIP code 95974, within about a mile (OpenAirDocs). The owner's mailing address, not where the aircraft was based
- The mark today: https://openairdocs.org/aircraft/N843M
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=843M
- Page: https://openairdocs.org/deregistered/N843M-2010-03-30

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 Bell UH-1B: https://openairdocs.org/model/bell-uh-1b.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 WPR09LA241](https://openairdocs.org/ntsb/WPR09LA241), May 13, 2009: Rotorcraft Development UH-1B (N843M), Richvale, CA, substantial damage. Probable cause: The pilot's failure to maintain control of the helicopter during takeoff for undetermined reasons.

## 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.

- [Accident 20090513017439A](https://openairdocs.org/incident/20090513017439A), May 13, 2009: Bell UH1B (N843M), Richvaille, CA, Substantial damage. (-23) During a repositioning flight the pilot lost control of the aircraft and it struck a hanger. The aircraft was substantial damaged. The pilot received…
- [Incident 19950527016979I](https://openairdocs.org/incident/19950527016979I), May 27, 1995: Bell UH1B (N843M), Gridley, CA, Minor damage. Narrative: on may 27, 1995, at 1513 pdst, N843M, a garlick (Bell) UH1B helicopter, registered to avag, inc., experienced a loss of engine power during take-off…

## Other aircraft with N843M

- [Cancelled 1934-12-01](https://openairdocs.org/deregistered/N843M-1934-12-01): Boeing 40-B-4, S/N 1169, built 1929. Owner: [Obbink Mildred F](https://openairdocs.org/faa-owner/OBBINK%20MILDRED%20F), [Santa Monica, CA](https://openairdocs.org/faa-place/CA/Santa%20Monica)

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