CEN25LA340

NTSB accident investigation · Burkhart Grob Flugzeugbau G102 Club Astir Iiib · Highland, IL · August 24, 2025

Accident · No injuriesClass 4 · LimitedFinal report
Date
August 24, 2025, 12:50 local (17:50 UTC)
Place
Highland, IL
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N424BGBurkhart Grob Flugzeugbau G102 Club Astir Iiib
Defining event
Takeoff: Loss of control on ground
Weather
Visual (VMC) · Day
Status
Completed · report October 2, 2025
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Central Region
Parties
FAA - STL FSDO
FAA report
20250824016769A
Case key
200850

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 directional control during takeoff which resulted in a collision with a parked vehicle.

Findings · 2

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 pilot reported that the glider was preparing to take off and was connected to a tow airplane. As the tow began, the glider began to drift to the left due to a crosswind, and the glider moved out of position behind the towplane. As the tow progressed the glider’s left wing dropped to the ground, and the glider began to ground loop. The pilot released from the towplane and the right wing of the glider struck a parked golf cart. The glider received substantial damage to the right wing. The pilot stated that there were no mechanical anomalies with the glider that would have precluded normal operations.

Aircraft

Registration
N424BG
Reported as
Burkhart Grob Flugzeugbau G102 Club Astir Iiib
Category
Glider
Serial number
5548CB
Built
1981
Airframe hours
4,175
Damage
Substantial damage
Flight
Personal · Part 91
Operator
St Louis Soaring Association Inc
Registered owner
St Louis Soaring Association Inc
Airworthiness certificate
Standard, Normal
Last inspection
Annual · August 10, 2025
Airport
H07 · Highland-Winet, runway 18/36, 2,200 × 100 ft, grass/turf
Equipment
None

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
67
Injuries
None
Certificate
Private
Last flight review
July 14, 2024
Seat
Single
Restraint
4-point
Flight hours
58 total · 10 in this make and model · 58 as pilot in command · 2 in the last 90 days · 1 in the last 30 days · 0 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
310° at 13 knots
Visibility
10 statute miles
Temperature
79 °F, dew point 57 °F
Altimeter
30.04 inHg
Observed at
KBLV, 17 nm away
METAR
METAR KBLV 241755Z AUTO 31013KT 10SM FEW045 26/14 A3004 RMK AO2 SLP172 T02590140 10259 20154 58009=

Docket · 2

The files NTSB released with the investigation on October 2, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 2.7 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.

Other investigations on N424BG · 2

Matched to the same aircraft by N-number and date.