# NTSB UNK64X1459: Benson B2, N1076Z, Rosemount, MN, April 25, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 25, 1964
- Place: Rosemount, MN · ROSEMOUNT, MN
- Location: 44.7394° N, 93.1258° W: Placed by OpenAirDocs: center of Rosemount, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.7394&lon=-93.1258&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report January 11, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 184870
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1459
- Page: https://openairdocs.org/ntsb/UNK64X1459

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0128  64/4/25    ROSEMOUNT MINN      BENSON B2           CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 28, 230
        TIME - 0900                    N1076Z              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 2 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SOUTHPORT
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL                                                    TAKEOFF: INITIAL CLIMB
           ROLL OVER                                                LANDING: ROLL-ON/RUN-ON
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
           PILOT IN COMMAND - LACK OF FAMILIARITY WITH AIRCRAFT
```

## Aircraft

- Registration: N1076Z (not matched to a registry record)
- Reported make and model: BENSON B2
- Category: Helicopter, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Southport

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.