NTSB CAROL · Event
Event LAX94LA110
Aircraft involved
Probable cause & findings
THE CFI'S INPROPER SUPERVISION OF THE FLIGHT, THE DUAL STUDENT'S IMPROPER RECOVERY FROM A BOUNCED LANDING, AND THE DUAL STUDENT'S IMPROPER USE OF THE BRAKES. THE CFI'S LACK OF TOTAL INSTRUCTIONAL EXPERIENCE IS A FACTOR IN THIS ACCIDENT.
Factual narrative
On January 31, 1994, at 1256 hours Pacific standard time, a Cessna 140, N2396V, nosed over while landing on runway 12 at Palo Alto Airport, Palo Alto, California. The pilots were conducting a local visual flight rules instructional flight. The airplane, registered to and operated by the flight instructor, sustained substantial damage. Neither the certificated commercial pilot/flight instructor (CFI) nor the certificated commercial pilot/dual student was injured. Visual meteorological conditions prevailed. The flight originated at Palo Alto Airport at 1200 hours. The CFI reported in a telephone interview conducted on February 1, 1994, that the dual student was "being checked out in conventional gear airplanes." The dual student was receiving wheel landing instruction and had made four or five takeoffs and landings before the accident. On the accident landing, the airplane bounced several times. When the airplane stopped bouncing and was rolling on the main wheels, the dual student applied heavy braking at his instruction. The airplane nosed down and flipped over onto its back. In a telephone interview conducted on February 1, 1994, the dual student said the airplane bounced several times and nosed over when he applied the brakes. He said that the airplane did not experience any preimpact malfunctions or failures. The CFI submitted the required Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2, to the National Transportation Safety Board, Southwest Regional Office. In the report, the CFI said the accident occurred on the fifth landing. The airplane ". . . bounced lightly a few times, then bounced, pitched down & [and] over . . .." He said there was no time to react to arrest the nose over. The dual student submitted a partial Pilot/Operator Aircraft Accident Report, NTSB Form 6120.1/2. He confirmed the CFI's written statement in the Aircraft Accident Report. Neither the CFI nor the dual student said anything about applying the brakes in their respective written statements. THE DUAL STUDENT WAS PRACTICING WHEEL LANDINGS IN A CONVENTIONAL GEAR AIRPLANE. ON THE LAST LANDING, THE CFI INSTRUCTED THE DUAL STUDENT TO APPLY THE BRAKES WHEN THE AIRPLANE WAS BOUNCING. THE DUAL STUDENT APPLIED THE BRAKES AND THE AIRPLANE NOSED OVER ONTO ITS BACK. THE CFI HAD 12 HOURS TOTAL INSTRUCTOR TIME OF WHICH 3 HOURS WERE IN THE LAST 90 DAYS. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1994_LAX94LA110.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 ↗