CHI91FA088
1991-02-03 · OSCEOLA, Wisconsin, United States · Fatal · 1 aircraft · Status: Completed
Airport OEO
Aircraft involved
Probable cause & findings
FAILURE OF THE PILOTS IN BOTH AIRCRAFT TO SEEING-AND-AVOID THE OTHER AIRPLANE.
Factual narrative
THE PLTS OF 2 CESSNA 182 ACFT TOOK OFF FROM RWY 10 IN FORMATION. ONE OF THESE, N6384A, HAD 4 SKYDIVERS ABOARD. AFTER TAKEOFF, THE PLT OF N6384A DISCONTINUED FORMATION FLT & DEPD TO THE SE, WHILE THE OTR CESSNA DEPD NE. AT ABOUT THE SAME TIME, A PIPER PA-28, N4676R, WAS APCHG THE ARPT WITH A DUAL STUDENT & INSTRUCTOR (CFI) ABOARD. SUBSEQUENTLY, THE 2 ACFT CONVERGED & COLLIDED ABOUT 1-1/2 MI SE OF THE ARPT. NO KNOWN WITNESS SAW THE COLLISION; THE ALTITUDE & HEADINGS OF THE ACFT WERE NOT VERIFIED. DURING IMPACT, THE 2 ACFT BECAME ENTANGLED & THEY IMPACTED THE GROUND AT THE SAME LOCATION. AN INVESTIGATION REVEALED EVIDENCE THAT THE HIGH WING CESSNA & THE LOW WING PA-28 CONVERGED LATERALLY, WHILE ON FLT PATHS THAT ANGLED TOWARD EACH OTHER. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_CHI91FA088.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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