NTSB MKC85LA164 — 1985-07-02 · DENISON, Iowa, United States

Aircraft involved

N6799D Brantly Helicopter B-2 None

Factual narrative

PLT REPORTS THAT THE ENG IDLE SETTING WAS TOO LOW AND THE ENG QUIT WHEN HE REDUCED POWER DURING A PRACTICE AUTOROTATION. THE ACFT TOUCHED DOWN HARD AND THE MAIN ROTOR CONTACTED TAIL BOOM. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12

Verbatim from NTSB's published report. Source file NTSB_1985_MKC85LA164.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Search this event elsewhere

External sources are reported, not agency: signal that something happened, not fact about what happened.

Related research

Matched on aircraft type. All research papers

NASA NTRS 2019 · Conference Paper Best Practices for Training the Structures Flight Test Engineer

The Structures Flight from 412th Test Wing and the Aerostructures Branch at NASA Armstrong Flight Research Center at Edwards Air Force Base have developed a set of best practices for training a struct…