# NTSB OAK65A0074: Hiller UH-12E, N44B, Mammoth Lakes, CA, June 22, 1965

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 22, 1965
- Place: Mammoth Lakes, CA · MAMMOTH LAKES, CA
- Location: 37.6244° N, 118.9884° W: Placed by OpenAirDocs: center of Mammoth Lakes, CA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=37.6244&lon=-118.9884&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 3, 1965
- Report: Brief approved by the director
- NTSB case key (mKey): 178232
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=OAK65A0074
- Page: https://openairdocs.org/ntsb/OAK65A0074

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
2-0593  65/6/22  NR.MAMMOTH LAKES CAL  HILLER UH-12E       CR-  0  0  1  COMMERCIAL                COMMERCIAL, FL.INSTR.,
        TIME - 1550                    N44B                PX-  0  0  0  AIR TAXI-CARGO            AGE 34, 6500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            3800 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - MT BALDWIN
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            LANDING: FINAL APPROACH
           ROLL OVER                                                LANDING: POWER-OFF AUTOROTATIVE LANDING
        PROBABLE CAUSE(S)
           MISCELLANEOUS ACTS,CONDITIONS - ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - ICE-CARBURETOR
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING OFF AIRPORT ON LAND
```

## Aircraft

- Registration: [N44B](https://openairdocs.org/deregistered/N44B-2012-11-29), registration cancelled 2012-11-29, S/N 2091, built 1961 (OpenAirDocs)
- Reported make and model: HILLER UH-12E
- Registry model: [Hiller UH-12E](https://openairdocs.org/model/hiller-uh-12e) (registry code 4360122) (OpenAirDocs)
- Registry engine: [Lycoming VO-540 series](https://openairdocs.org/engine/lycoming-vo-540-series) (registry code 41534, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Mt Baldwin

## Other investigations on N44B (2)

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 MIA71DM066](https://openairdocs.org/ntsb/MIA71DM066), Jan 24, 1971: Hiller UH12E4 (N44B), Naguabo, PR, substantial damage
- [NTSB MIA68O0001](https://openairdocs.org/ntsb/MIA68O0001), Aug 29, 1967: Hiller UH12E4 (N44B), Santa Fe, RP, 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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