NTSB CHI90LA102 — 1990-03-24 · PHILLIPSBURG, Ohio, United States

N80450 has since been reassigned. It is now registered to a different aircraft (KOLB FIRESTAR, built 1994), which was not involved in this event.

Aircraft involved

N80450 Robinson R22 None

Probable cause & findings

THE FAILURE OF THE PILOT TO RETAIN CONTROL OF THE AIRCRAFT.

Factual narrative

THE ACCIDENT HELICOPTER COLLIDED WITH TERRAIN DURING HOVER FLIGHT AND ROLLED OVER DURING SOLO FLIGHT. THE HELICOPTER WAS SUBSTANTIALLY DAMAGED ALTHOUGHT THE STUDENT PILOT AT THE CONTROLS WAS NOT INJURED. AN FAA INTERVIEW DISCLOSED THE INFORMATION THAT AN ATP RATED PILOT HAD GIVEN VERBAL PERMISSION TO THE STUDENT TO PERFORM THE SOLO FLIGHT. AT THE TIME OF THE ACCIDENT THE STUDENT AT THE CONTROLS HAD RECEIVED APPROXIMATELY 24 HOURS OF DUAL INSTRUCTION IN ROTORCRAFT OVER THE PREVIOUS 5 MONTHS. THE STUDENT PILOT'S CERTIFICATE HAD NOT BEEN ENDORSED FOR SOLO FLIGHT BY ANY INSTRUCTOR AT THE TIME OF THE ACCIDENT. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1990_CHI90LA102.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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Related research

Matched on aircraft type. All research papers

Semantic Scholar 2023 · Article (JMIR mHealth and uHealth) Clinical Study of a Wearable Remote Rehabilitation Training System for Patients With Stroke: Randomized Controlled Pilot Trial

Background In contrast to the large and increasing number of patients with stroke, clinical rehabilitation resources cannot meet their rehabilitation needs.