# Accident 20030820021559A: Boeing A75, Onalaska, WI, August 20, 2003

- Type: FAA accident report (Accident/Incident Data System), as reported
- Date: August 20, 2003, 10:15 local time
- Place: Onalaska, WI
- Damage: Substantial damage
- Phase of flight: Descent
- Operating rules: General operating rules (Part 91)
- Location: 43.8789° N, 91.2544° W: From the FAA
- Nearby events: https://openairdocs.org/map.md?lat=43.8789&lon=-91.2544&mi=10
- Aircraft: N806RB, registered now (https://openairdocs.org/aircraft/N806RB) (OpenAirDocs)
- Registry model: Boeing A75 (registry code 1380108, https://openairdocs.org/model/boeing-a75) (OpenAirDocs)
- Registry engine: Pratt & Whitney R-985 series (registry code 52008, https://openairdocs.org/engine/pratt-whitney-r-985-series) (OpenAirDocs)
- Reported make and model: BOEING A75
- Reported engine: PWA R985*
- People aboard: 1
- Fatal injuries: 0
- Pilot flight hours: 17,525 total, 10,780 in this make and model, 168 in the last 90 days
- NTSB investigation: [NTSB CHI03LA274](https://openairdocs.org/ntsb/CHI03LA274) (OpenAirDocs)
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/20030820021559A

## Narrative

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

(-23) ON DESCENT IN LSE AIRPORT ENGINE BEGAN TO SHAKE HARD, PILOT RETARDED THROTTLE AND ENGINE SUDDENLY STOPPED. LANDING INITIATED 3 MILES NORTH OF LSE AIRPORT IN CORNFIELD. UPON TOUCHDOWN AIRCRAFT FLIPPED OVER CAUSING DAMAGE TO WINGS AND TAIL. APPROXIMATELY 12 GALLONS OF FUEL WERE DRAINED FROM AIRCRAFT AFTER RETRIEVING IT FROM FIELD. ENGINE TEARDOWN AT COVINGTON AIRCRAFT ENGINES, OKMULGEE, OK, REVEALED THE CRANKSHAFT WAS BROKEN IN TWO PIECES.

## 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 CHI03LA274](https://openairdocs.org/ntsb/CHI03LA274), Aug 20, 2003: Boeing A-75 (N806RB), La Crosse, WI, substantial damage. Probable cause: The total loss of engine power due to a fatigue fracture of the engine's crankshaft. A factor was the corn crop.

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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