# Accident 20010716026419A: Druine TURBULENT D-31, Lebanon, IN, July 16, 2001

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: July 16, 2001, 09:45 local time
- Place: Lebanon, IN
- Airport: Boone County Airport
- Damage: No damage
- Operating rules: General operating rules (Part 91)
- Location: 40.0509° N, 86.4705° W: From the FAA, an estimate near the named town, within about 3 miles
- Nearby events: https://openairdocs.org/map.md?lat=40.0509&lon=-86.4705&mi=10
- Aircraft: N4697T, a cancelled registration (https://openairdocs.org/deregistered/N4697T-2001-10-09) (OpenAirDocs)
- Registry model: Druine TURBULENT D-31 (registry code 05601HM, https://openairdocs.org/model/druine-turbulent-d-31) (OpenAirDocs)
- Registry engine: Volkswagen CONVERSION (registry code 63501, https://openairdocs.org/engine/volkswagen-conversion) (OpenAirDocs)
- NTSB investigation: [NTSB CHI01LA222](https://openairdocs.org/ntsb/CHI01LA222) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20010716026419A

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ON JULY 16, 2001, N4697T, AN AMATEUR-BUILT DRUINE/TURBULENT D-31 AIRCRAFT, OWNED AND OPERATED BY LES L. SCHNEIDER WAS ATTEMPTING A TAKEOFF FORM RUNWAY 18 AT BOONE COUNTY AIRPORT, LEBANON, IN WHEN THE AIRCRAFT LOST THRUST AT ABOUT 50 FEET IN THE AIR. THE PILOT SAID HE PUT THE NOSE DOWN IN AN ATTEMPT TO REGAIN AIRSPEED BUT THE LEFT WING OF THE AIRCRAFT APPARENTLY STALLED AND THE MACHINE IMPACTED IN A BEAN FIELD ADJACENT TO THE RUNWAY. THE AIRMAN RECEIVED A SEVERE BUT NON-LIFE THREATENING HEAD LACERATION. INVESTIGATION BY FSDO PERSONNEL REVEALED A HOLE IN THE ACCELERATOR PUMP ADJACENT TO THE CARBURETOR. MAINTENANCE PERSONNEL ALSO DETERMINED THAT THE PROPELLER WAS SET TO ABOUT 18 DEGREES OF PITCH. THERE IS A STRONG POSSIBILITY THAT THIS PROPELLER PITCH IS NOT ADEQUATE TO PRODUCE THE THRUST NECESSARY TO SUSTAIN FLIGHT. INVESTIGATION INTO THIS POSSIBILITY IS ONGOING.

## The NTSB's investigation of this event (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB CHI01LA222](https://openairdocs.org/ntsb/CHI01LA222), Jul 16, 2001: Druine Turbulent D-31 (N4697T), Lebanon, IN, substantial damage. Probable cause: The pilot not maintaining aircraft control while maneuvering during initial climb. Factors to the accident were the improperly serviced propeller that resulted in a pitch setting that was…

## Other reports on N4697T (1)

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

- [Incident 19790710018639I](https://openairdocs.org/incident/19790710018639I), Jul 10, 1979: Amtrsg TURBULENT (N4697T), Bluffton, IN. Engine stopped running. Idler drive crew backed out. Causing camshaft to disconnect.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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