# NTSB SEA93GA052: Hiller UH-12E, N28908, Chinook, MT, January 15, 1993

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: January 15, 1993, 12:15 local (19:15 UTC)
- Place: Chinook, MT
- Coordinates: 48.469459, -109.210342 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.4695&lon=-109.2103&mi=10
- Phase of flight: [Standing](https://openairdocs.org/ntsb-phases/150) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal, 2 uninjured; on the ground: 1 fatal
- Status: Completed, report October 13, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 42943
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA93GA052
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/42943/pdf
- Page: https://openairdocs.org/ntsb/SEA93GA052

## Probable cause

INATTENTIVE FBO PERSONNEL.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Propeller/rotor contact to person, standing - idling rotors
  - object - other person
  - inattentive, fbo personnel (cause)

## Analysis

THE PILOT REPORTED THAT HE HAD LANDED THE HELICOPTER NEAR THE FUEL PUMPS AS EARLIER AGREED UPON BY THE FBO PERSONNEL. AS THE MAIN AND TAIL ROTORS WERE WINDING DOWN, THE PILOT AND PASSENGER EXITED THE HELICOPTER AND WERE REMOVING BAGGAGE WHEN AN INDIVIDUAL FROM THE FBO EXITED A NEARBY HANGAR AND WAS FOLLOWING A PATH WAY IN THE SNOW TOWARD THE ADMINISTRATION BUILDING AND THE HELICOPTER. THE PILOT CALLED OUT TO THE INDIVIDUAL TO CAUTION HIM OF THE TAIL ROTOR, HOWEVER, THE INDIVIDUAL CONTINUED AND WAS STRUCK BY THE TAIL ROTOR.

## Aircraft

- Registration: [N28908](https://openairdocs.org/aircraft/N28908), registered now, S/N 1332, built 1962 (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 0-435](https://openairdocs.org/engine/lycoming-0-435) (registry code 41516, reciprocating) (OpenAirDocs)
- Category: Helicopter
- Serial number: 1332
- Airframe hours: 8953
- Engines: LYCOMING V0-540-C2A 305 horsepower reciprocating
- Damage: Minor damage
- Flight: Public aircraft, Public use
- Operator: Dept Of Interior
- Registered owner: Hawkins & Powers Aviation
- Airworthiness certificate: Standard, Normal
- Last inspection: Continuous airworthiness, December 29, 1992, 35 hours before
- Flight plan: Company VFR
- Airport: S71, Chinook

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 11,000 total, 2,000 in this make and model, 9,400 as pilot in command, 38 in the last 90 days, 32 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 1 °F

## 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 19930115000559A](https://openairdocs.org/incident/19930115000559A), Jan 15, 1993: Hiller UH12E, Chinook, MT, Minor damage, 1 fatal. After aircraft had landed and rotors were spooling down,the fixed base operator walked into tail rotor. Fatal injury

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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