# NTSB CHI84LA288: Rotorway Executive, N2993P, Cambridge, WI, July 11, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 11, 1984, 18:00 local (23:00 UTC)
- Place: Cambridge, WI
- Coordinates: 42.920158, -88.840652 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.9202&lon=-88.8407&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): 12692
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI84LA288
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/12692/pdf
- Page: https://openairdocs.org/ntsb/CHI84LA288

## Sequence of events

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

- Loss of control - in flight, hover
  - flight controls - improper use of, pilot in command (cause)
  - lack of recent experience in kind of aircraft, pilot in command (contributing factor)
  - inadequate initial training, pilot in command (contributing factor)
  - lack of recent experience, pilot in command (contributing factor)
- Roll over, hover

## Analysis

THE FIXED WING PLT WHO WAS NOT QUALIFIED TO FLY ROTORCRAFT TRIED TO HOVER HIS HOMEBUILT ACFT. AFTER FAILING THE 1ST TIMEHE TRIED AGAIN AND THIS TIME THE ACFT ROLLED OVER AND BURNED. THE PLT SAID THE ROLL OVER OCCURRED SO FAST HE DID NOT HAVE TIME TO ACT.

## Aircraft

- Registration: [N2993P](https://openairdocs.org/deregistered/N2993P-1984-10-03), registration cancelled 1984-10-03, S/N 2993 (OpenAirDocs)
- Reported make and model: ROTORWAY EXECUTIVE
- Registry model: [Peterson/Vierck ROTERWAY](https://openairdocs.org/model/peterson-vierck-roterway) (registry code 13025DZ) (OpenAirDocs)
- Category: Helicopter, amateur-built
- Serial number: 2993
- Airframe hours: 5
- Engines: ROTORWAY RW145 145 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Registered owner: Albert L. Vierck/Alan Peterson
- Airworthiness certificate: Special, Experimental (Special)

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 32; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: left; flight hours: 93 total, 10 in this make and model, 47 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 280° at 9 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 59 °F
- Altimeter: 29.00 inHg
- Observed at: MKE, 50 nm away

## 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 19840711031269A](https://openairdocs.org/incident/19840711031269A), Jul 11, 1984: Amtr ROTORWAYEXEC, Cambridge, WI, Destroyed. Pilot was attempting to hover when helicopter rolled to right. Blade struck ground and then helicopter caught fire.

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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