# NTSB UNK64X1021: Bell 47D1, N4253A, Miami, FL, March 22, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: March 22, 1964
- Place: Miami, FL · MIAMI, FL
- Location: 25.7743° N, 80.1937° W: Placed by OpenAirDocs: center of Miami, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=25.7743&lon=-80.1937&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 6, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 185614
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X1021
- Page: https://openairdocs.org/ntsb/UNK64X1021

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0078  64/3/22    MIAMI FLA           BELL 47D1           CR-  0  0  1  MISCELLANEOUS             COMMERCIAL, FL.INSTR.,
        TIME - 1100                    N4253A              PX-  0  0  1  TEST                      AGE 54, 1618 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            800 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT -                 Z
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: WIRES/POLES                               IN FLIGHT: NORMAL CRUISE
           HARD LANDING                                             LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS
```

## Aircraft

- Registration: N4253A (not matched to a registry record)
- Reported make and model: BELL 47D1
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport:                 Z

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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