# NTSB LAX65A0087: Bell 47G2, N5161B, Chino, CA, April 20, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 20, 1965
- Place: Chino, CA · CHINO, CA
- Location: 33.9763° N, 117.6745° W: Placed by OpenAirDocs: center of Chino, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=33.9763&lon=-117.6745&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 16, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 179870
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX65A0087
- Page: https://openairdocs.org/ntsb/LAX65A0087

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0201  65/4/20    CHINO CALIF         BELL 47G2           CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, AGE 55, 15000
        TIME - 0830                    N5161B              PX-  0  0  1  CORP/EXEC                 TOTAL HOURS, 540 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - CHINO
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: POWER-ON LANDING
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
        FACTOR(S)
           PILOT IN COMMAND - IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS
           PILOT IN COMMAND - IMPROPER OPERATION OF FLIGHT CONTROLS
```

## Aircraft

- Registration: [N5161B](https://openairdocs.org/deregistered/N5161B-2014-12-17), registration cancelled 2014-12-17, S/N 1979, built 1957 (OpenAirDocs)
- Reported make and model: BELL 47G2
- Registry model: [Bell 47G-2](https://openairdocs.org/model/bell-47g-2) (registry code 1181008) (OpenAirDocs)
- Registry engine: [Lycoming VO-435 series](https://openairdocs.org/engine/lycoming-vo-435-series) (registry code 41525, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Chino

## Other investigations on N5161B (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 SEA75DYC40](https://openairdocs.org/ntsb/SEA75DYC40), May 31, 1975: Bell 47G-2A (N5161B), Corvallis, OR, destroyed
- [NTSB SEA74DYE39](https://openairdocs.org/ntsb/SEA74DYE39), Mar 3, 1974: Bell 47G-2 (N5161B), Forks, WA, substantial damage
- [NTSB SEA74DYE20](https://openairdocs.org/ntsb/SEA74DYE20), Oct 8, 1973: Bell 47F-2 (N5161B), Forks, WA, 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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