# NTSB CHI89DEV04: Tesori Regionne 2002, Urbana, IL, December 3, 1988

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: December 3, 1988, 15:20 local (21:20 UTC)
- Place: Urbana, IL
- Coordinates: 40.099922, -88.19963 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.0999&lon=-88.1996&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 1 fatal
- Status: Completed, report June 25, 1990
- Report: Approved by Office Director
- NTSB case key (mKey): 14225
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI89DEV04
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/14225/pdf
- Page: https://openairdocs.org/ntsb/CHI89DEV04

## Analysis

THE PLT TRANSMITTED ON AN ADVISORY FREQUENCY 'CLEAR THE AREA I HAVE ENGINE TROUBLE'. WHILE TURNING FROM DOWNWIND TO THE BASE LEG OF HIS EMERGENCY APPROACH TO THE AIRPORT, WITNESSES OBSERVED THE AIRPLANE IN A STEEP RIGHT BANK WHEN IT SUDDENLY BANKED LEFT AND DESCENDED INTO THE GROUND. TEMPERATURE AND DEWPOINT WERE 54 DEGS AND 39 DEGS RESPECTIVELY. THESE TEMPS ARE CONDUCIVE TO THE FORMATION OF CARBURETOR ICE.

## Sequence of events

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

- Loss of engine power, cruise - normal
  - weather condition - carburetor icing conditions (contributing factor)
  - fuel system,carburetor - ice (cause)
  - carburetor heat - delayed, pilot in command (cause)
- Loss of control - in flight, maneuvering - turn to landing area (emergency)
  - maneuver - excessive, pilot in command (cause)
  - airspeed(vso) - not maintained, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Aircraft

- Registration: CGFSY (not matched to a registry record)
- Reported make and model: TESORI REGIONNE 2002 (REGIONNE 2)
- Category: Airplane, amateur-built
- Serial number: 001
- Engines: PZL-KALISZ AT-14RA 252 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Roberto Tesori
- Registered owner: Robert V Tesori
- Airworthiness certificate: Special, Experimental (Special)

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; private; airplane ratings: single-engine land; medical: unknown, unknown; seat: front; flight hours: 1,500 total, 112 in this make and model, 1,455 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 54 °F, dew point 39 °F
- Altimeter: 30.00 inHg
- Observed at: CMI, 5 nm away

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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