# NTSB UNK64X2220: Benson B8M, N371Y, Manville, NJ, June 10, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 10, 1964
- Place: Manville, NJ · MANVILLE, NJ
- Location: 40.5413° N, 74.5893° W: Placed by OpenAirDocs: center of Manville, NJ, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.5413&lon=-74.5893&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 3, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 183497
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X2220
- Page: https://openairdocs.org/ntsb/UNK64X2220

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0204  64/6/10    MANVILLE NJ         BENSON B8M          CR-  0  0  1  MISCELLANEOUS             NO CERTIFICATE, AGE 27, 0
        TIME - 1200                    N371Y               PX-  0  0  0  EXPERIMENTATION           TOTAL HOURS, ALL IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            UNK/NR INSTRUMENT RATED.
        NAME OF AIRPORT - KUPPER
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: GROUND TAXI, OTHER
           ROLL OVER                                                TAXI: GROUND TAXI, OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - ATTEMPTED OPERATION BEYOND EXPERIENCE/ABILITY LEVEL
```

## Aircraft

- Registration: [N371Y](https://openairdocs.org/deregistered/N371Y-1970-12-31), registration cancelled 1970-12-31, S/N 52 (OpenAirDocs)
- Reported make and model: BENSON B8M
- Registry model: [Bensen B-8M](https://openairdocs.org/model/bensen-b-8m) (registry code 1300516) (OpenAirDocs)
- Category: Helicopter, amateur-built
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Kupper

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.