NTSB CAROL · Event
Event ATL04LA199
Aircraft involved
Probable cause & findings
Loss of engine power for undetermined reasons and the pilot's improper landing flare which resulted in a hard landing and collapse of the main landing gear.
Factual narrative
On July 10, 2004 at 1138 eastern daylight time, an unregistered experimental Adventura II, owned and operated by Quality Contracting Services Inc., collided with the ground shortly after takeoff from runway 23 at Naples Municipal Airport, Naples, Florida. The personal flight operated under provisions of Title 14 CFR Part 91. Visual meteorological conditions prevailed at the time of the accident and no flight plan was filed. The airplane was substantially damaged. The pilot was not injured, the passenger suffered minor injuries. The flight originated from Naples Municipal Airport, Naples, Florida, on July 10, 2004 at 1137. The pilot completed one high speed taxi on runway 23, and then started a second high speed taxi at which time he attempted to take off. The pilot applied full power and climbed to approximately 100 feet above. As he continued the climb, he noticed the airplane was not performing properly. The passenger stated she heard the airplane engine surging. The pilot reported the engine problem to the control tower and his last transmission stated "I need to make a 180 and come back". The 180-degree turn was never completed and the airplane landed hard at the end of runway 23. The flight was never cleared for a takeoff. Examination of the airplane revealed the main landing gear collapsed, the aluminum support tubes fractured, and the float attachment tube fractured. The pilot completed one high speed taxi on runway 23, and then started a second high speed taxi at which time he attempted to take off. The pilot applied full power and climbed to approximately 100 feet. As he continued the climb, he noticed the airplane was not performing properly. The passenger stated she heard the airplane engine surging. The pilot reported the engine problem to the control tower and his last transmission stated "I need to make a 180 and come back". The 180-degree turn was never completed and the airplane landed hard at the end of runway 23. The flight was never cleared for takeoff. Examination of the airplane revealed the main landing gear collapsed, the aluminum support tubes fractured, and the float attachment tube fractured. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_ATL04LA199.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. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
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- Embry-Riddle Scholarly Commons 2022 · Journal article (JAAER)
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- NASA NTRS 2019 · Conference Paper
A TCAS-II Resolution Advisory Detection Algorithm
The Traffic Alert and Collision Avoidance System (TCAS) is a family of airborne systems designed to reduce the risk of mid-air collisions between aircraft.
- NASA NTRS 2019 · Technical Memorandum (TM)
Los Angeles International Airport Runway Incursion Studies: Phase III--Center-Taxiway Simulation
Phase III of the Los Angeles International Airport Runway Incursion Studies was conducted, under an agreement with HNTB Corporation, at the NASA Ames FutureFlight Central (FFC) facility in June 2003.
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