# NTSB UNK64X1458: Bell 47G, N7985A, Hayward, CA, April 25, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 25, 1964
- Place: Hayward, CA · HAYWARD, CA
- Location: 37.6688° N, 122.0808° W: Placed by OpenAirDocs: center of Hayward, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6688&lon=-122.0808&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (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): 184869
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1458
- Page: https://openairdocs.org/ntsb/UNK64X1458

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0127  64/4/25    HAYWARD CALIF       BELL 47G            CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 31, 138
        TIME - 0700                    N7985A              PX-  0  0  0  PRACTICE                  TOTAL HOURS, 56 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - HAYWARD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-ON LANDING
           ROLL OVER                                                LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
```

## Aircraft

- Registration: [N7985A](https://openairdocs.org/aircraft/N7985A), registered now, S/N 1022, built 1958 (OpenAirDocs)
- Reported make and model: BELL 47G
- Registry model: [Bell 47G](https://openairdocs.org/model/bell-47g) (registry code 1181002) (OpenAirDocs)
- Registry engine: [Franklin 6V4 series](https://openairdocs.org/engine/franklin-6v4-series) (registry code 27033, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Hayward

## Other investigations on N7985A (3)

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 WPR26LA247](https://openairdocs.org/ntsb/WPR26LA247), Jul 3, 2026: Bell 47G (N7985A), Springtown, TX, substantial damage, investigation ongoing
- [NTSB OAK75FVG13](https://openairdocs.org/ntsb/OAK75FVG13), Aug 13, 1974: Bell 47G (N7985A), Sacramento, CA, substantial damage
- [NTSB OAK70D0145](https://openairdocs.org/ntsb/OAK70D0145), Sep 8, 1969: Bell 47G (N7985A), Hollister, CA, destroyed

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.

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