- Date
- June 13, 1992, 14:00 local (19:00 UTC)
- Place
- Schaumburg, IL
- Injuries
- 2 serious
- Damage
- Destroyed
- Phase of flight
- Initial climb
- Aircraft
- N4PVVandenbos/Thorp T-18
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 30, 1993
- Report
- Approved by Office Director
- FAA report
- 19920613019869A
- Case key
- 15235
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
Shorting of condensers on both magnetos. A factor was inadequate maintenance servicing of the airplane by other maintneance personnel.
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.
Analysis
The homebuilt airplane lost engine power during initial climb from takeoff, and the pilot made a forced landing in a swamp. Both magnetos failed functional test. On disassembly, both magnetos exhibited burned points, pitted rotors, shorted condensers and other discrepancies.
Aircraft
- Registration
- N4PV
- Reported as
- Vandenbos/Thorp T-18
- Category
- Airplane, amateur-built
- Serial number
- 495
- Airframe hours
- 450
- Engine
- Lycoming O-290-G, 125 horsepower, reciprocating
- Damage
- Destroyed
- Flight
- Personal · Part 91
- Operator
- Vandenbos, Cornelius M.
- Registered owner
- Vandenbos, Cornelius M.
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · June 10, 1992 · 30 hours before
- Departed
- 06C
- Destination
- 06C
- Airport
- 06C · Schaumburg Airpark, runway 28, 3,000 × 50 ft, asphalt
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
- 73
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Flight hours
- 166 total · 166 in this make and model · 166 as pilot in command · 2 in the last 90 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 360° at 4 knots
- Visibility
- 15 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F, dew point 48 °F
- Altimeter
- 29.00 inHg
- Observed at
- ORD, 8 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.