# NTSB CHI92DEP03: Stuart J. Carter Moni, N3944C, Eau Claire, WI, August 15, 1992

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Final report
- Date: August 15, 1992, 12:00 local (17:00 UTC)
- Place: Eau Claire, WI
- Coordinates: 44.820545, -91.490455 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.8205&lon=-91.4905&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 1 serious
- Status: Completed, report May 26, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15244
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92DEP03
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15244/pdf
- Page: https://openairdocs.org/ntsb/CHI92DEP03

## Probable cause

THE PILOT-IN-COMMAND'S FAILURE TO MAINTAIN AIRSPEED.

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - airspeed - not maintained, pilot in command (cause)
  - lack of familiarity with aircraft, pilot in command (contributing factor)
  - stall/spin - inadvertent, pilot in command
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - ground

## Analysis

THE ACCIDENT OCCURRED AS THE PILOT/OWNER OF THE HOMEBUILT AIRPLANE WAS MAKING HIS FIRST FLIGHT IN THE AIRCRAFT.  THE PILOT STATED THAT AFTER TAKEOFF HE ACCELERATED TO 60 KNOTS AND NOTED THAT CONTROL RESPONSE SEEMED 'SLOW.'  HE THEN ACCELERATED TO 70 KNOTS AND THE AILERONS STILL SEEMED 'UNRESPONSIVE.'  HE STATED HE ATTEMPTED TO KEEP THE AIRSPEED BETWEEN 75 AND 80 KNOTS; HOWEVER, THE AIRPLANE SLOWED TO 74 KNOTS AT WHICH TIME, HE STATED, THE RIGHT WING STALLED. WITNESSES REPORTED SEEING THE AIRPLANE DURING THE INITIAL CLIMB AND INDICATED THAT THE WINGS WERE ROLLING LEFT AND RIGHT JUST PRIOR TO THE AIRPLANE PITCHING NOSE DOWN AND ENTERING A BANK UNTIL IMPACT WITH THE TERRAIN.

## Aircraft

- Registration: [N3944C](https://openairdocs.org/deregistered/N3944C-1994-04-01), registration cancelled 1994-04-01, S/N 00151 (OpenAirDocs)
- Reported make and model: STUART J. CARTER MONI
- Registry model: [Carter Stuart J MONI](https://openairdocs.org/model/carter-stuart-j-moni) (registry code 05659Z9) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 000151
- Airframe hours: 164
- Engines: KFM 107E 22 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Berg, Randy R.
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, May 5, 1992, 3 hours before
- Departed: EAU
- Destination: EAU
- Airport: EAU, Eau Claire County Airport, runway 22, 7,301 × 150 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; seat: center; flight hours: 211 total, 160 as pilot in command, 4 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 3 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: EAU, 1 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 19920815031539A](https://openairdocs.org/incident/19920815031539A), Aug 15, 1992: Amtr MONI, Eau Claire, WI, Substantial damage. Appeared unstable on climbout. Stalled and spun in. Improper control input when wing stalled caused spin.

## Other investigations on N3944C (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 CHI83LA397](https://openairdocs.org/ntsb/CHI83LA397), Aug 28, 1983: Carter MONNETT-MONI (N3944C), Port Huron, MI, 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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