# NTSB MKC90LA041: Mancini Rotorway Exec, N4463N, Mountain Iron, MN, January 7, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: January 7, 1990, 15:30 local (21:30 UTC)
- Place: Mountain Iron, MN
- Coordinates: 47.519638, -92.620727 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.5196&lon=-92.6207&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report December 15, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 34921
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA041
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34921/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA041

## Probable cause

FAILURE OF THE NON-CERTIFICATED PILOT TO MAINTAIN ADEQUATE ALTITUDE, WHILE MANEUVERING THE HELICOPTER.  THE PILOT'S LACK OF EXPERIENCE AND PROPER CERTIFICATION (QUALIFICATION) WERE RELATED FACTORS.

## Sequence of events

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

- Dragged wing,rotor,pod,float or tail/skid, maneuvering
  - proper altitude - not maintained, pilot in command (cause)
  - qualification, pilot in command (contributing factor)
  - lack of total experience, pilot in command (contributing factor)
- In flight collision with terrain/water, maneuvering

## Analysis

WHILE FLYING HIS HOMEBUILT HELICOPTER, THE NON-CERTIFIED PILOT WAS MANEUVERING ABOUT 4 FEET AGL AND DRAGGED A SKID. CONTROL OF THE AIRCRAFT WAS LOST AND IT COLLIDED WITH THE TERRAIN, SUSTAINING SUBSTANTIAL DAMAGE. THE PILOT HAD A TOTAL OF ABOUT 19 HOURS, OF WHICH 10 WERE DUAL INSTRUCTION RECEIVED IN 1983.

## Aircraft

- Registration: [N4463N](https://openairdocs.org/deregistered/N4463N-1990-10-19), registration cancelled 1990-10-19, S/N 3111 (OpenAirDocs)
- Reported make and model: MANCINI ROTORWAY EXEC (ROTORWAY E)
- Registry model: [Mancini Geno F ROTORWAY EXEC](https://openairdocs.org/model/mancini-geno-f-rotorway-exec) (registry code 13017BU) (OpenAirDocs)
- Category: Helicopter, amateur-built
- Serial number: 3111
- Engines: CHEVROLET V-6 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mancini, Geno F.
- Registered owner: Unknown
- Airworthiness certificate: Special, Experimental (Special)
- Departed: NONE, MOUNTAIN IRON, MN

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; medical: unknown; flight hours: 19 total, 19 in this make and model, 6 in the last 90 days, 4 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 300° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: HIB, 15 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 19900107000129A](https://openairdocs.org/incident/19900107000129A), Jan 7, 1990: Amtr ROTORWAYEXEC, Mountain Iron, MN, Substantial damage. Dragged a skid during air taxi turn and lost control causing a crash. No license or medical certificate.

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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