# NTSB UNK65X0522: Bell 47H1, N1Z, Lagunabeach, CA, November 1, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: November 1, 1964
- Place: Lagunabeach, CA · LAGUNABEACH, CA
- Location: 33.5432° N, 117.7618° W: Placed by OpenAirDocs: center of Laguna Beach, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.5432&lon=-117.7618&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report February 19, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 181814
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK65X0522
- Page: https://openairdocs.org/ntsb/UNK65X0522

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0872   64/11/1 NR.LAGUNABEACH CALIF  BELL 47H1           CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 36, 149
        TIME - 1210                    N1Z                 PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 4 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           POWERPLANT - COOLING SYSTEM: OTHER
          PILOT-IMPROPERLY EXECUTED EMERGENCY LANDING
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING OFF AIRPORT
        REMARKS- FAILURE OF COOLING FAN BELT
```

## Aircraft

- Registration: [N1Z](https://openairdocs.org/deregistered/N1Z-2003-04-18), registration cancelled 2003-04-18, S/N 1367, built 1956 (OpenAirDocs)
- Reported make and model: BELL 47H1
- Registry model: [Bell 47H-1](https://openairdocs.org/model/bell-47h-1) (registry code 1181011) (OpenAirDocs)
- Registry engine: [Franklin 6A4200 series](https://openairdocs.org/engine/franklin-6a4200-series) (registry code 27027, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N1Z (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 LAX70F0142](https://openairdocs.org/ntsb/LAX70F0142), Aug 30, 1969: Bell 47-H (N1Z), Laguna Bch, CA, substantial damage

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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