CHI00LA201

NTSB accident investigation · Witlock CIRCA-NIEUPORT 12 · Peotone, IL · July 16, 2000

Accident · Minor injuriesLimited investigationFinal report
Date
July 16, 2000, 12:00 local (17:00 UTC)
Place
Peotone, IL
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N317LSWitlock CIRCA-NIEUPORT 12
Weather
Visual (VMC) · Day
Status
Completed · report April 25, 2001
Report
Approved by Office Director
FAA report
20000716037319A
Case key
49719

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Probable cause

the carburetor icing conditions and the fact that the aircraft was not equipped with carburetor heat protection. A factor to the accident was the crops.

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

Loss of engine power(partial) - nonmechanicalCruise
Carburetor heat control - not installedCause
Lack of familiarity with aircraftPilot in command
Weather condition - carburetor icing conditionsCause
Forced landingEmergency descent/landing
In flight collision with terrain/waterEmergency landing
Terrain condition - cropFactor

Analysis

According to a statement by the pilot, 'Departed runway 27 for general test flight. Made several circuits of the pattern. Left the pattern to climb up higher. Upon turning to return to the airport I experienced a partial loss of power. Unable to hold altitude and attempting to get back to the approach end of 27, I landed in a corn field.' Using the Midway Airport temperature of 72 degrees and a dew point of 68, the aircraft was flying in the possibility of 'serious icing' on the Icing Probability Chart. A post accident investigation found that the aircraft had no provisions for the removal of carburetor ice. The pilot indicated that he had two hours in the accident aircraft's make and model.

Factual narrative

On July 16, 2000, at approximately 1200 central daylight time (CDT), an amateur built Circa-Nieuport 12, N317LS, piloted by a private pilot, was substantially damaged during a forced landing in a cornfield following a partial loss of engine power. The flight was operating under the provisions of 14 CFR Part 91, and was not operating on a flight plan. Visual meteorological conditions prevailed at the time of the accident. The pilot reported minor injuries. The test flight had departed a private strip 15 minutes prior to the accident.

According to a statement by the pilot, he, "Departed runway 27 for general test flight. Made several circuits of the pattern to climb up higher. Upon turning to return to the airport I experienced a partial loss of power. Unable to hold altitude and attempting to get back to the approach end of 27, I landed in a corn field."

The aircraft wreckage was moved by the owner prior to an examination by Federal Aviation Administration inspectors.

Temperature at Midway Airport, Chicago, Illinois, located approximately 39 miles to the north, was 22 degrees C, with a dew point of 17 degrees C. Using the Icing Probability Chart and the temperature and dew point, the aircraft was at risk for "serious icing". A Federal Aviation Administration inspector found that the aircraft had no provisions for the removal of carburetor ice.

The pilot, on the pilot/operator accident report form, indicated that he had accrued two hours in the accident make and model.

Aircraft

Registration
N317LS
Reported as
Witlock CIRCA-NIEUPORT 12 (CIRCA-NIEU)
Category
Airplane, amateur-built
Serial number
0079
Airframe hours
2
Engine
Yamaha 1100, 70 horsepower, reciprocating
Damage
Substantial damage
Flight
Part 91
Operator
Karl Henning
Registered owner
Dale Whitlock
Airworthiness certificate
Special, Experimental (Special)
Departed
PVT · Peotone, IL
Airport
PVT, runway 27, 1,300 × 50 ft, grass/turf

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
45
Certificate
Private
Airplane ratings
Single-engine land
Instrument ratings
Airplane
Medical
Class 3, Unknown
Seat
Rear
Flight hours
800 total · 2 in this make and model · 700 as pilot in command · 60 in the last 90 days · 20 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
230° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
72 °F, dew point 68 °F
Altimeter
29.00 inHg
Observed at
MDW

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.