# NTSB DEN84FTM03: Rotorway Rotorway Executive, N5211F, Lehi, UT, September 7, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: September 7, 1984, 12:30 local (18:30 UTC)
- Place: Lehi, UT
- Location: 40.4171° N, 111.8711° W: Placed by OpenAirDocs: center of Lehi, UT, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=40.4171&lon=-111.8711&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16256
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84FTM03
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16256/pdf
- Page: https://openairdocs.org/ntsb/DEN84FTM03

## Sequence of events

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

- In flight collision with terrain/water, hover
  - terrain condition - rough/uneven
  - altitude - inadequate, pilot in command (contributing factor)
  - clearance - not maintained, pilot in command (cause)
  - remedial action - attempted, pilot in command (contributing factor)
  - cyclic - improper use of, pilot in command (cause)
- Loss of control - on ground/water, landing - flare/touchdown
  - collective - improper use of, pilot in command (cause)
- On ground/water encounter with weather, landing - flare/touchdown

## Analysis

THE STUDENT PLT WAS PRACTICING HOVER TAXIING AT THE ABANDONED ARPT. WHILE TAXIING THE RIGHT SKID HIT A 3 INCH HIGH MOUNDOF DIRT. THE ACFT BOUNCED UP AND ROLLED TO THE LEFT. THE PLT ATTEMPTED TO CORRECT USING THE CYCLIC BUT THE ACFT BEGAN TO ROLL FURTHER TO THE LEFT AND RIGHT ABOUT THE LONGITUDINAL AXIS. THE PLT LOWER THE COLLECTIVE, THE ACFT LANDED ON THE LEFT SKID AND ROLLED OVER. THE STUDENT PILOT HAD LOGGED A TOTAL OF 8 HOURS OF FLT TIME.

## Aircraft

- Registration: [N5211F](https://openairdocs.org/deregistered/N5211F-1991-03-29), registration cancelled 1991-03-29, S/N B2001 (OpenAirDocs)
- Reported make and model: Rotorway ROTORWAY EXECUTIVE (ROTORWAY E)
- Registry model: [Bradshaw/Bradshaw EXEC](https://openairdocs.org/model/bradshaw-bradshaw-exec) (registry code 13025FH) (OpenAirDocs)
- Category: Airplane
- Serial number: B2001
- Airframe hours: 161
- Engines: Rotorway RW145 145 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Ray Lamar Bradshaw
- Airworthiness certificate: Special, Experimental (Special)

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; student; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 8 total, 8 in this make and model, 3 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19840907047659A](https://openairdocs.org/incident/19840907047659A), Sep 7, 1984: Amtr ROTORWAYEXEC, Lehi, UT, Substantial damage. Lost control when a skid struck a dirt mound during practice hovering in ground effect. Helicopter rolled over.

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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