# N44CW: Berkshire Mfg. CONCEPT 70, registration cancelled 2011-03-16

- Type: Cancelled registration (FAA registry, deregistered aircraft)
- Cancelled: March 16, 2011
- Status when cancelled: Assigned, pending cancellation
- Airframe: [Berkshire Mfg. CONCEPT 70](https://openairdocs.org/model/berkshire-mfg-concept-70) (registry code 1240104)
- Serial number: 3
- Type of aircraft: Glider
- Airworthiness: Experimental, racing
- Airworthiness date: February 25, 1972
- Last registry action: October 6, 1979
- Mode S code: A5488B
- The mark today: https://openairdocs.org/aircraft/N44CW
- FAA registry: https://registry.faa.gov/AircraftInquiry/Search/NNumberResult?nNumberTxt=44CW
- Page: https://openairdocs.org/deregistered/N44CW-2011-03-16

From the FAA registry file of October 28, 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 Berkshire Mfg. CONCEPT 70: https://openairdocs.org/model/berkshire-mfg-concept-70.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 OAK73FXQ04](https://openairdocs.org/ntsb/OAK73FXQ04), Jul 19, 1972: Concept 70 (N44CW), Minden, NV, destroyed

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