- Date
- June 24, 2022, 15:18 local (20:18 UTC)
- Place
- Monee, IL
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- N350CPGlasair II FT
- Defining event
- Maneuvering: Loss of control in flight
- Weather
- Visual (VMC) · Day
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Central Region
- Parties
- FAA Flight Standards
- FAA report
- 20220624011319A
- Case key
- 105358
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 in-flight loss of control while practicing aerodynamic stall recoveries.
Findings · 1
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 was conducting power-off aerodynamic stall recoveries about 3,000 ft mean sea level (msl) at the time of the accident. The first three stall recoveries were unremarkable. However, before the fourth stall, the airplane’s deceleration rate and pitch attitude were greater than the previous three stall entries. The airplane snapped to the left and rolled inverted. It continued to roll and settled into an upright left spin with a relatively flat nose-down pitch attitude between 10° and 20°. Multiple attempts to recover from the spin were not successful. The airplane made about 6 complete rotations before it impacted the terrain. The airplane sustained substantial damage to both wings, the fuselage, and the empennage. The pilot reported no malfunctions or failures associated with the airplane before the accident. He noted that initiating recovery at the first indication of the stall might have prevented the loss of control.
Factual narrative
On June 24, 2022, about 1518 central daylight time, a Glasair II FT airplane, N350CP, was substantially damaged when it was involved in an accident near Monee, Illinois. The pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot was conducting power-off aerodynamic stall recoveries about 3,000 ft msl. The pilot reported that the first three stall recoveries were unremarkable. However, before the fourth stall, the airplane’s deceleration rate and pitch attitude were greater than the previous three stall entries. The airplane snapped to the left and rolled inverted. It continued to roll and settled into an upright left spin with a relatively flat nose-down pitch attitude between 10° and 20°. Multiple attempts to recover from the spin were not successful. The airplane made about 6 complete rotations before it impacted the terrain. The airplane sustained substantial damage to both wings, the fuselage, and the empennage. The pilot reported no malfunctions or failures associated with the airplane before the accident. He noted that initiating recovery at the first indication of the stall might have prevented the loss of control.
Aircraft
- Registration
- N350CP
- Reported as
- Glasair II FT
- Category
- Airplane, amateur-built
- Serial number
- 1008
- Built
- 1997
- Airframe hours
- 603
- Engine
- Lycoming O-320, 150 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Condition · April 17, 2022 · 6 hours before
- Departed
- IGQ · Lansing, IL
- Destination
- ICQ · Lansing, IL
- Equipment
- Handheld GPS, ADS-B
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
- 64
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- BasicMed, With waivers/limitations
- Last flight review
- June 10, 2022
- Seat
- Left
- Restraint
- 3-point
- Flight hours
- 535 total · 500 in this make and model · 421 as pilot in command · 5 in the last 90 days · 2 in the last 30 days · 0 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 100° at 6 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 88 °F, dew point 57 °F
- Altimeter
- 30.02 inHg
- Observed at
- KIGQ, 14 nm away
- METAR
- METAR KIGQ 242015Z AUTO 10006KT 10SM CLR 31/14 A3002
Docket · 2
The files NTSB released with the investigation on August 30, 2023, on NTSB’s docket system: statements, records, photos and specialists’ reports. 17.8 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.