NTSB CAROL · Event
Event LAX94LA321
Aircraft involved
Probable cause & findings
the pilot's misjudging the flare altitude and failing to maintain adequate airspeed resulting in an inadvertent stall and hard landing. The pilot's lack of total time in the airplane is a factor in this accident.
Factual narrative
On August 13, 1994, at 1815 hours mountain standard time, a Cessna 172P, N98909, sustained a hard landing on runway 21 at Scottsdale Municipal Airport, Scottsdale, Arizona. The pilot was completing a visual flight rules personal flight. The airplane, registered to and operated by Sawyer Aviation, Phoenix, Arizona, sustained substantial damage. Neither the recently certificated private pilot nor either of the two passengers were injured. Visual meteorological conditions prevailed. The flight originated at Sky Harbor Airport, Phoenix, Arizona, about 1700 hours. Mr. James Hackman, Sawyer Aviation, was interviewed via telephone by National Transportation Safety Board investigators on August 16, 1994. Mr. Hackman said the pilot reported that the approach speed and flare to the runway were normal, but the airplane, however, "suddenly dropped like a rock." The pilot taxied off the runway. Mr. Hackman also said that he contacted the local controller. The local controller reported that the approach speed and flare altitude appeared normal moments before it dropped. Safety Board investigators reviewed the recorded communications between Scottsdale Air Traffic Control Tower and N98909. The review revealed the pilot initially called the local controller at 1807:67 hours and reported that he was 8 miles southwest of the airport. The local controller cleared N98909 to land on runway 21 and cleared another airplane to land behind N98909. At 1815:54 hours, the local controller cleared N98909 to taxi to parking. At 1816:07, an unidentified voice said "that airplane looks a little bent there"; another unidentified voice responded "yeah, I see that." The communications medium also revealed that the airplane following N98909, a Beach BE-55, landed without incident. There were no communications from any pilots before or after the accident suggesting any windshear conditions. The reported surface winds were from 270 degrees at 15 knots. THE PILOT MISJUDGED THE FLARE ALTITUDE DURING LANDING AND FAILED TO MAINTAIN ADEQUATE AIRSPEED. THE AIRPLANE STALLED AND SUSTAINED A HARD LANDING. THE PILOT HAD ACCRUED 1.5 HOURS IN THE AIRCRAFT MAKE AND MODEL. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1994_LAX94LA321.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 (stall). 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 · Conference Paper
Computational Analysis of Steady State Aerodynamics of Transonic Truss-Braced Wing Configuration in Deep Stall
This study presents a computational investigation of steady state aerodynamics of the Subsonic Ultra-Green Aircraft Research (SUGAR) Transonic Truss-Braced Wing (TTBW) configuration over a wide range …
- arXiv 2023 · arXiv preprint
Automating Bird Diverter Installation through Multi-Aerial Robots and Signal Temporal Logic Specifications
This paper tackles the task assignment and trajectory generation problem for bird diverter installation using a fleet of multi-rotors.
- arXiv 2023 · arXiv preprint
Variation of Critical Crystallization Pressure for the Formation of Square Ice in Graphene Nanocapillaries
Two-dimensional square ice in graphene nanocapillaries at room temperature is a fascinating phenomenon and has been confirmed experimentally.
- arXiv 2023 · arXiv preprint
Polycrystallinity enhances stress build-up around ice
Damage caused by freezing wet, porous materials is a widespread problem, but is hard to predict or control. Here, we show that polycrystallinity makes a great difference to the stress build-up process…
- arXiv 2022 · arXiv preprint
Enhanced Prediction of Three-dimensional Finite Iced Wing Separated Flow Near Stall
Icing on three-dimensional wings causes severe flow separation near stall. Standard improved delayed detached eddy simulation (IDDES) is unable to correctly predict the separating reattaching flow due…
- Embry-Riddle Scholarly Commons 2021 · Journal article (JAAER)
Analysis on the Negative Emotional, Physiological, and Cognitive Responses Elicited from of the Activation of a Stall Alarm
Failing to identify an aerodynamic stall can lead to the inability of an aircraft to sustain flight. To warn pilots of an impending or fully-developed stall, many aircraft have safety devices installe…
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