NTSB CAROL · Event
Event LAX91LA180
Aircraft involved
Probable cause & findings
THE FAILURE OF THE PILOT TO MAINTAIN CONTROL OF THE HELICOPTER. A FACTOR IN THE ACCIDENT WAS THE PILOT'S LACK OF TOTAL EXPERIENCE IN HELICOPTERS.
Factual narrative
THE PILOT DOES NOT HOLD A ROTORCRAFT CLASS RATING, HOWEVER, WAS ENDORSED FOR SOLO PRIVILEGES IN THE TOWNSEND EXECUTIVE HELICOPTER. THE PILOT SAID HE WAS PRACTICING TAKEOFFS AND LANDINGS AND LOST CONTROL OF THE HELICOPTER WHILE TURNING FROM BASE TO FINAL. THE HELICOPTER COLLIDED WITH THE GROUND IN A LEFT BANKED ATTITUDE. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1991_LAX91LA180.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.
- Embry-Riddle Scholarly Commons 2024 · Conference paper
Relational Energy’s Role in Leadership Development for Airline Executives
Relational energy — the dynamism of emotional and psychological exchanges in interactions — is an overlooked element in leadership development.
- NASA NTRS 2026 · Contractor Report (CR)
Space Shuttle Phase B System Study Extension. Part 1: Executive Summary
- NASA NTRS 2019 · Technical Memorandum (TM)
Crew Factors in Flight Operations: A Survey of Fatigue Factors in Corporate/Executive A Viation Operations - 8
Corporate flight crews face unique challenges including unscheduled flights, quickly changing schedules, extended duty days, long waits, time zone changes, and peripheral tasks.
- Semantic Scholar 2013 · Article (IEEE transactions on neural systems and rehabilitation engineering)
Effectiveness of Executive Functions Training Within a Virtual Supermarket for Adults With Traumatic Brain Injury: A Pilot Study
- 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…
Browse the full corpus — academia portal ↗