Skip to content

Atlas / NTSB / CHI89LA044

NTSB CAROL · Event

Event CHI89LA044

1989-01-15 OSCEOLA, Wisconsin, United States Airport · OEO None 1 aircraft Status: Completed

Aircraft involved

Probable cause & findings

INADEQUATE PREFLIGHT BY THE STUDENT PILOT, INADEQUATE SUPERVISION (TO ASSURE A PROPER PREFLIGHT) BY THE INSTRUCTOR PILOT (CFI), AND WATER CONTAMINATION OF THE FUEL. THE TERRAIN WAS CONSIDERED TO BE A CONTRIBUTING FACTOR. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1989_CHI89LA044.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.