NTSB CAROL · Event
Event LAX95LA174
Aircraft involved
Probable cause & findings
the pilot's misjudged landing flare. A factor in the accident was the illusion of a lower than actual altitude created by the high vegetation which led the pilot to flare early.
Factual narrative
On April 29, 1995, at 0858 hours Pacific daylight time, a Robinson R-22 helicopter, N9067B, sustained a hard landing and rolled over on helicopter pad No. 1 at Long Beach Airport, Long Beach, California. The pilot was conducting a local solo visual flight rules instructional flight. The helicopter, registered to and operated by the pilot, sustained substantial damage. The certificated airline transport pilot (fixed wing) was not injured. Visual meteorological conditions prevailed. The flight originated at Long Beach Airport at 0800 hours. The pilot told National Transportation Safety Board investigators in a telephone interview conducted on May 1, 1995, that he was practicing autorotations in preparation for his forthcoming helicopter rating flight test. He said that he initially performed autorotations that terminated with a power recovery. He then began to practice autorotations from a hover to a landing. He said that he planned a run-on landing autorotation, but the helicopter landed hard and bounced. During the recovery, the helicopter rotated to the left and the skids became entangled in the high vegetation (tall grass) which caused the helicopter to roll over. The pilot also said that the helicopter did not experience any preimpact malfunctions or failures. The pilot essentially repeated his statement in the aircraft accident report. He added, however, that on the fourth or fifth autorotation he undershot the helipad and flared the helicopter over the tall grass. He said the tall grass gave him the impression that the helicopter was inches above the ground, but the helicopter was about 3-feet above the ground. THE FIXED WING AIRLINE TRANSPORT PILOT WAS PRACTICING AUTOROTATIONS IN PREPARATION OF HIS ROTORCRAFT - HELICOPTER RATING FLIGHT TEST. ON THE LAST AUTOROTATION, THE PILOT OVERSHOT THE HELIPAD AND FLARED THE HELICOPTER OVER HIGH VEGETATION. THE HIGH VEGETATION GAVE THE PILOT THE IMPRESSION THAT THE HELICOPTER WAS INCHES ABOVE THE GROUND AND THE PILOT ELECTED TO EXECUTE A RUN-ON LANDING. THE HELICOPTER DROPPED 3 FEET AND THE LEFT SKID BECAME ENTANGLED IN THE HIGH VEGETATION AND THE HELICOPTER ROLLED OVER. THE PILOT REPORTED THAT THE HELICOPTER DID NOT EXPERIENCE ANY PREIMPACT MALFUNCTIONS OR FAILURES. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1995_LAX95LA174.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type or causal vocabulary (icing). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2026 · Contractor Report (CR)
Icing Physics Studies Using the 3D SIDRM Test Article: 2023 Icing Tests Analysis
In-flight icing is an important safety issue and is a factor that affects aircraft design and performance. Newer regulations are driving a need for improvements in airframe and engine icing simulation…
- arXiv 2025 · arXiv preprint
Multi-Agent Deep Reinforcement Learning for UAV-Assisted 5G Network Slicing: A Comparative Study of MAPPO, MADDPG, and MADQN
The growing demand for robust, scalable wireless networks in the 5G-and-beyond era has led to the deployment of Unmanned Aerial Vehicles (UAVs) as mobile base stations to enhance coverage in dense urb…
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Mathematical Model on the Temporal Dynamics of Aviation Competitive Pricing
This study investigates the competitive dynamics of airport pricing using U.S. airport data to validate the findings. It employs linear and nonlinear ordinary differential equation models to analyze t…
- NASA NTRS 2025 · Presentation
NASA Icing Update – March 2025
This NASA Icing Update was prepared for presentation to the SAE International AC-9C Inflight Icing Technology Committee. This update includes the following topics: planned Rotational Icing Scaling tes…
- arXiv 2024 · arXiv preprint
An energy-stable phase-field model for droplet icing simulations
A phase-field model for three-phase flows is established by combining the Navier-Stokes (NS) and the energy equations, with the Allen-Cahn (AC) and Cahn-Hilliard (CH) equations and is demonstrated ana…
- NASA NTRS 2024 · Presentation
NASA Icing Update – Oct 2024
This presentation provides a status update on select NASA icing research activities for the SAE AC-9C Icing Technical Committee Meeting on Oct 21, 2024.
Browse the full corpus — academia portal ↗