CHI90LA220

NTSB accident investigation · Schleicher ASK-21 · Plainfield, IL · July 31, 1990

Accident · No injuriesLimited investigationFinal report
Date
July 31, 1990, 13:00 local (18:00 UTC)
Place
Plainfield, IL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Emergency descent
Aircraft
N342KSSchleicher ASK-21
Weather
Visual (VMC) · Day
Status
Completed · report November 9, 1992
Report
Approved by Office Director
FAA report
19900731029339A
Case key
14742

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

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Probable cause

The glider pilot's improper aircraft handling at low atitude.

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.

In flight collision with objectDescent - emergency
Aircraft handling - improperPilot in commandCause
Glider/tow release - performedPilot in commandFactor
Clearance - not maintainedPilot in commandCause
In flight collision with terrain/waterLanding - flare/touchdown
Terrain condition - crop

Analysis

The glider pilot stated that he allowed his aircraft to get out of position behind the tow plane during initial climbout. He reported that he was afraid the tow line would pull the tow plane out of control at low altitude, so he released and attempted to return to the departure airport for a landing. The glider impacted trees on the edge of the airport and came to rest in a bean field.

Aircraft

Registration
N342KS
Reported as
Schleicher ASK-21
Category
Glider
Serial number
21253
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Advanced Soaring Klub, Ltd.
Registered owner
Advanced Soaring Klub, Ltd.
Airworthiness certificate
Standard, Normal
Airport
1C5 · Clow International

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
64
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Front
Flight hours
1,316 total · 8 in this make and model · 1,123 as pilot in command · 21 in the last 90 days · 6 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
20° at 10 knots
Visibility
20 statute miles
Lowest ceiling
3,000 ft broken
Temperature
70 °F, dew point 54 °F
Altimeter
30.00 inHg
Observed at
ARR

FAA reports on this event · 1

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