# NTSB LAX81FUG06: Hiller Acft UH-12B, N94731, Rialto, CA, December 25, 1980

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: December 25, 1980
- Place: Rialto, CA · RIALTO, CA
- Location: 34.1174° N, 117.3892° W: Placed by OpenAirDocs: center of Rialto, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=34.1174&lon=-117.3892&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report February 23, 1981
- Report: Brief approved by the director
- NTSB case key (mKey): 127607
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX81FUG06
- Page: https://openairdocs.org/ntsb/LAX81FUG06

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3476  80/12/25   RIALTO,CA           HILLER ACFT UH-12B  CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 34, 343
        TIME - 1355                    N94731              PX-  0  0  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 18 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - RIALTO MUNI
        DEPARTURE POINT             INTENDED DESTINATION
          RIALTO,CA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            TAKEOFF: INITIAL CLIMB
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           POWERPLANT - FUEL SYSTEM: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - FUEL STARVATION
        FACTOR(S)
           TERRAIN - HIGH VEGETATION
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
        REMARKS- DRG BENCH CK AFTER ACDNT,FUEL PUMPS WOULD NOT PROVIDE PRES WHEN SUPPLY WAS INTERUPTED FOR 1 SECOND
```

## Aircraft

- Registration: [N94731](https://openairdocs.org/deregistered/N94731-2007-07-17), registration cancelled 2007-07-17, S/N 387, built 1952 (OpenAirDocs)
- Reported make and model: HILLER ACFT UH-12B
- Registry model: [Hiller UH-12B](https://openairdocs.org/model/hiller-uh-12b) (registry code 4360110) (OpenAirDocs)
- Registry engine: [Franklin 6VS-335 series](https://openairdocs.org/engine/franklin-6vs-335-series) (registry code 27040, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Rialto Muni

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19801225083009A](https://openairdocs.org/incident/19801225083009A), Dec 25, 1980: Hiller UH12B, Rialto, CA, Substantial damage. Engine quit, rolled over on emergency landing. Found fuel level low, below fuel line pickup.

## Other investigations on N94731 (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 OAK79FVD11](https://openairdocs.org/ntsb/OAK79FVD11), Feb 25, 1979: Hiller UH-12B (N94731), Brentwood, 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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