NTSB CAROL · Event
Event LAX03CA247
Aircraft involved
Probable cause & findings
The pilot's misjudged landing flare, which resulted in a porpoise pilot induced oscillation and hard landing.
Factual narrative
On July 20, 2003, at 1230 Pacific daylight time, a Cessna 172N, N73857, experienced a hard landing at Livermore Airport, California. The airplane was registered to and operated by Flying Particles, Inc., a flying club in Livermore, under the provisions of 14 CFR Part 91. The private pilot was not injured, and the airplane was substantially damaged. Visual meteorological conditions prevailed and a visual flight plan had not been filed. The personal flight originated from the Fresno-Chandler Downtown Airport about 1130. The pilot stated in the Pilot/Operator Aircraft Accident Report (NTSB Form 6120 1/2), that she bounced the airplane two times while attempting to land on runway 25R. She described the bounces as a "porpoise." The pilot then executed a go-around and on the second approach she landed uneventfully. The winds at Livermore were recorded as variable at 3 knots. A mechanic inspected the airplane and reported to the NTSB Investigator-in-Charge (IIC) that the engine firewall was damaged and a section of fuselage skin behind the firewall on the left side was wrinkled. During a landing attempt the airplane porpoised on touchdown and bounced at least two times. The pilot performed a go-around and landed uneventfully on the second attempt. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2003_LAX03CA247.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 (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.
- 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.
- NASA NTRS 2019 · Conference Paper
Validation of Proposed Go-Around Criteria Under Various Environmental Conditions
This paper evaluates the effects of environmental conditions on touchdown performance under varying approach states and validates proposed go-around criteria developed using data from a previously con…
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