CEN09LA488

NTSB accident investigation · Piontkowski Challenger · Kankakee, IL · August 3, 2009

Accident · Serious injuriesLimited investigationFinal report
Date
August 2, 2009, 19:49 local (Aug 3, 2009, 00:49 UTC)
Place
Kankakee, IL
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4526GPiontkowski Challenger
Defining event
Maneuvering-low-alt flying: Low altitude operation/event
Weather
Visual (VMC) · Day
Status
Completed · report July 22, 2010
Report
Approved by Office Director
NTSB office
Central Region
Parties
Federal Aviation Administration
FAA report
20090802048719A
Case key
74434

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 pilot's failure to maintain clearance from the telephone line and his poor judgment to fly while under the influence of alcohol. Contributing to the accident was the pilot's impairment due to the alcohol consumption.

Findings · 4

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Analysis

The aircraft was observed flying low along a river about 30 to 40 feet above the water, when it impacted a telephone line that went across the river. First responders reported that the pilot had the smell of alcohol on his breath. The pilot had his blood drawn more than 3½ hours after the accident, and the laboratory results indicated 0.127 g/dL of ethanol. Examination and photographs of the wreckage did not reveal any pre-impact anomalies. FAA regulation 91.17 Alcohol or drugs, in part, stated, "(a)No person may act or attempt to act as a crewmember of a civil aircraft - (1) Within 8 hours after the consumption of any alcoholic beverage; (2) While under the influence of alcohol; … or (4) While having an alcohol concentration of 0.04 or greater in a blood or breath specimen."

Factual narrative

On August 2, 2009, about 1949 central daylight time, an experimental amateur-built Piontkowski Challenger, N4526G, operated by a private pilot, sustained substantial damage when the airplane struck a telephone line and then subsequently impacted the Kankakee River near Kankakee, Illinois. Visual meteorological conditions prevailed at the time of the accident. The personal flight was being conducted under the provisions of 14 CFR Part 91 without a flight plan. The pilot on board the airplane sustained serious injuries. The flight originated at the Greater Kankakee Airport (IKK), near Kankakee, Illinois. According to witness statements in a Kankakee County Sheriff’s Police report, the aircraft was observed flying low along the Kankakee River. The IKK airport manager was a witness in a boat on the river. He recognized that the airplane was based at IKK. He saw that the airplane flew about 30 to 40 feet above the water. The airplane was further observed impacting a telephone line that went across the river and then impacting the Kankakee River. First responders reported that the pilot had the smell of alcohol on his breath. The pilot had his blood drawn more than 3½ hours after the accident on August 2, 2009, about 2320 and taken into evidence by the Kankakee County Sheriff. The laboratory results reference the blood draw indicated 0.127 g/dL of ethanol. Federal Aviation Administration (FAA) inspectors examined and took photographs of the wreckage. Their examination and review of their photographs did not reveal any pre-impact anomalies. FAA regulation 91.17 Alcohol or drugs, in part, stated: (a) No person may act or attempt to act as a crewmember of a civil aircraft - (1) Within 8 hours after the consumption of any alcoholic beverage; (2) While under the influence of alcohol; … or (4) While having an alcohol concentration of 0.04 or greater in a blood or breath specimen. Alcohol concentration means grams of alcohol per deciliter of blood or grams of alcohol per 210 liters of breath. FAA regulation 91.119 Minimum safe altitudes: General, in part, stated: Except when necessary for takeoff or landing, no person may operate an aircraft below the following altitudes: ... (c) Over other than congested areas. An altitude of 500 feet above the surface, except over open water or sparsely populated areas. In those cases, the aircraft may not be operated closer than 500 feet to any person, vessel, vehicle, or structure.

Aircraft

Registration
N4526G
Reported as
Piontkowski Challenger
Category
Airplane, amateur-built
Serial number
CH2-1206-LSS-0111
Airframe hours
70.6
Engine
Rotax 503 DCDI, 52 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Piontkowski Jeffery J
Registered owner
Piontkowski Jeffery J
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Condition · May 28, 2009
Departed
IKK · Kankakee, IL
Destination
IKK · Kankakee, IL
Airport
IKK · Greater Kankakee Airport

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
Injuries
Serious
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3
Last flight review
May 21, 2008
Seat
Front
Flight hours
194 total · 85 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
220° at 6 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
73 °F, dew point 55 °F
Altimeter
29.95 inHg
Observed at
IKK, 1 nm away

Docket · 5

The files NTSB released with the investigation on April 20, 2010, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.3 MB in all.

FAA reports on this event · 1

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