# NTSB DEN84LA110: Hiller FH 1100, N5042F, Provo, UT, March 16, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 16, 1984, 14:15 local (21:15 UTC)
- Place: Provo, UT
- Location: 40.2192° N, 111.7234° W: Placed by OpenAirDocs at PROVO MUNI (PVU), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.2192&lon=-111.7234&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16350
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84LA110
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16350/pdf
- Page: https://openairdocs.org/ntsb/DEN84LA110

## Sequence of events

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

- Roll over, takeoff
  - terrain condition - soft (contributing factor)
  - rotorcraft flight controls - improper use of, pilot in command (cause)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)

## Analysis

THE ACFT WAS LANDED IN SOGGY TERRAIN AND THE RIGHT SKID SANK INTO THE SURFACE. ONE OF THE OCCUPANTS OF THE HELICOPTER DEPLANED TO'LIGHTEN THE LOAD'AND THE PLT OVERCORRECTED IN AN ATTEMPT TO TAKEOFF. THE ACRT ROLLED OVER ONTO ITS LEFT SIDE.

## Aircraft

- Registration: [N5042F](https://openairdocs.org/deregistered/N5042F-2008-02-27), registration cancelled 2008-02-27, S/N 212, built 1969 (OpenAirDocs)
- Reported make and model: HILLER FH 1100
- Registry model: [Fairchild Hiller FH-1100](https://openairdocs.org/model/fairchild-hiller-fh-1100) (registry code 3376502) (OpenAirDocs)
- Registry engine: [Allison 250 SER 250HP](https://openairdocs.org/engine/allison-250-ser-250hp) (registry code 03002, turbo-shaft) (OpenAirDocs)
- Category: Helicopter
- Serial number: 212
- Airframe hours: 3216
- Engines: ALLISON 250-C18BR 274 horsepower turbo shaft
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Gary M Elton
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, September 15, 1983
- Airport: PVU, Provo Municipal

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; private; airplane ratings: single-engine land; medical: class 3, expired; seat: left; flight hours: 871 total, 37 in this make and model, 871 as pilot in command, 79 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 55 °F, dew point -0 °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 19840316006109A](https://openairdocs.org/incident/19840316006109A), Mar 16, 1984: Hiller FH1100, Provo, UT, Substantial damage. A skid stuck in soft ground while trying to lift off. Helicopter then entered a dynamic rollover regime and crashed

## Other investigations on N5042F (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 NYC81FGM09](https://openairdocs.org/ntsb/NYC81FGM09), Dec 25, 1980: Hiller Acft FH1100 (N5042F), Somerset, PA, 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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