NTSB CAROL · Event
Event CHI08CA018
Aircraft involved
Probable cause & findings
The pilot's failure to execute a go-around when a normal approach to the intended landing point could not be maintained. An additional cause was the excessive descent rate that developed during the approach. Contributing factors were the tailwind condition and the tree line.
Factual narrative
The helicopter was substantially damaged during a hard landing. The pilot reported that he experienced a stuck microphone after takeoff and elected to return to the helipad for landing. He noted that reversing course for landing resulted in a right quartering tailwind on approach. The pilot reported that about 100 feet above ground level (agl), he noticed that the helicopter was not slowing down. His attempt to reduce the ground speed by "slipping" the aircraft was not successful. As the helicopter approached a line of trees, he turned toward an open area; however, the helicopter began to settle in the turn. He applied power in an attempt to reduce the descent rate and pitched up in order to position the helicopter for a hard landing. Although the descent rate began to decrease about 30 feet agl, the helicopter skids impacted the crest of a hill. The pilot added power and brought the helicopter to a hover, before landing near the heliport. The post accident examination revealed that the skids, lower fuselage and left stabilizer were damaged in the hard landing. The pilot reported that he experienced a stuck microphone after takeoff and elected to return to the helipad for landing. He noted that reversing course for landing resulted in a right quartering tailwind on approach. The pilot reported that about 100 feet above ground level (agl), he noticed that the helicopter was not slowing down. His attempt to reduce the ground speed by "slipping" the aircraft was not successful. As the helicopter approached a line of trees, he turned toward an open area; however, the helicopter began to settle in the turn. He applied power in an attempt to reduce the descent rate and pitched up in order to position the helicopter for a hard landing. Although the descent rate began to decrease about 30 feet agl, the helicopter skids impacted the crest of a hill. The pilot added power and brought the helicopter to a hover, before landing near the heliport. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2007_CHI08CA018.txt.
Findings + structured fields enriched from FAA avall.mdb.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (go-around). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NTSB Aircraft Accident Reports 2010 · Accident report
Loss of Control on Approach — Colgan Air Flight 3407
Colgan Air 3407 / Continental Connection (Q400) Buffalo NY, February 12, 2009 — 50 fatalities. Definitive investigation of the Colgan 3407 stall-stick-pusher crash on approach to Buffalo.
- NASA NTRS 2025 · Conference Paper
A Training Study to Improve Monitoring During A Go-Around
As part of an FAA program to improve go-around (GA) safety, we were asked to determine if we could improve the performance of the Pilot Monitoring (PM) during a GA maneuver.
- Flight Safety Foundation 2024 · FSF / AeroSafety World
Go-Around Safety Forum Findings
Foundation Go-Around Safety Forum technical findings — examines why pilots fail to execute go-arounds when criteria are met (stabilized approach gate not met, energy state out of envelope, traffic con…
- Semantic Scholar 2022 · Article (Journal of Safety Research)
Go-around accidents and general aviation safety.
INTRODUCTION Changes in General Aviation (GA) accident rates, specifically in the go-around phase, are examined by comparing the number of accidents, the proportion of fatal accidents, and the proport…
- Semantic Scholar 2021 · Article (Aerospace)
Classification and Analysis of Go-Arounds in Commercial Aviation Using ADS-B Data
Go-arounds are a necessary aspect of commercial aviation and are conducted after a landing attempt has been aborted. It is necessary to conduct go-arounds in the safest possible manner, as go-arounds …
- NASA NTRS 2021 · Accepted Manuscript (Version with final changes)
Go-Around Criteria Refinement for Transport Category Aircraft
Presently, airline pilots are trained to go around if, when lower than 500 ft above the ground, they are outside of a handful of parameters such as airspeed, position, and rate of descent.
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