# NTSB CAN66F0394: Hiller UH-12L, N90482, Mt.Seymour, Canada, May 24, 1966

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: May 24, 1966
- Place: Mt.Seymour, Canada · MT.SEYMOUR,BC, Canada
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report February 8, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 171443
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CAN66F0394
- Page: https://openairdocs.org/ntsb/CAN66F0394

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
6-0095  66/5/24    MT.SEYMOUR,BC CAN   HILLER UH-12L       CR-  0  1  0  COMMERCIAL                COMMERCIAL, AGE 29, 3740
        TIME - 1235                    N90482              PX-  0  0  0  CONSTRUCTION              TOTAL HOURS, 40 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: ELECTRONIC TOWERS                         IN FLIGHT: HOVERING
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING
         FIRE AFTER IMPACT
        REMARKS- INVESTIGATED AND REPORTED BY CANADIAN GOVT. MAIN RTR BLDS STRUCK TWR,2 WORKMEN FELL FRM TWR.
```

## Aircraft

- Registration: [N90482](https://openairdocs.org/deregistered/N90482-1970-06-29), registration cancelled 1970-06-29, S/N 2516 (OpenAirDocs)
- Reported make and model: HILLER UH-12L
- Registry model: [Hiller UH-12L4](https://openairdocs.org/model/hiller-uh-12l4) (registry code 4360128) (OpenAirDocs)
- Category: Helicopter
- Engines: reciprocating
- Damage: 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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