NTSB CAROL · Event
Event SEA04CA054
Aircraft involved
Probable cause & findings
Failure to maintain airspeed while on final approach resulting in a stall. Factors include a rough running engine for undetermined reasons and rough/uneven terrain.
Factual narrative
On March 21, 2004, at 1000 Pacific standard time, an amateur built, experimental category, Menefee RAF Vari-Eze airplane, N200TZ, sustained substantial damage during a hard landing at the Bremerton National Airport, Bremerton, Washington. The airplane was being operated as a visual flight rules (VFR) local flight under the provisions of 14 CFR Part 91, when the accident occurred. The private pilot, the sole occupant of the airplane, received minor injuries. Visual meteorological conditions prevailed and no flight plan was filed for the flight. During a telephone conversation with the National Transportation Safety Board IIC, the pilot reported that shortly after takeoff the aircraft developed a rough running engine. The pilot stated he turned back toward the departure runway (19/1), but was unable to land due to traffic on the runway. The pilot stated he entered the traffic pattern and continued to the south for a landing on the departure runway. The pilot said the airplane was low, slow and unresponsive to roll inputs after turning final. Shortly after turning final, the pilot reported that the airplane "pancaked" in, coming to rest in a grassy area adjacent to runway 19. The pilot reported that he believed the rough running engine was caused by a fouled sparkplug. An FAA inspector from Seattle, Washington, Flight Standards District Office inspected the airplane after the accident and reported that there was no evidence found to indicate a mechanical failure and the cause of the engine vibration was undetermined. The airplane was powered by an E81T Subaru engine rated at 100 horsepower. The pilot reported that shortly after takeoff the aircraft developed a rough running engine. The pilot stated he turned back toward the departure runway, but was unable to land due to traffic on the runway. The pilot stated he entered the traffic pattern and continued to the south for a landing on the departure runway. The pilot said the airplane was low, slow and unresponsive to roll inputs after turning final. Shortly after turning final, the pilot reported that the airplane "pancaked" in, coming to rest in a grassy area adjacent to runway 19. The pilot later reported that he believed the rough running engine was caused by a fouled sparkplug. An FAA inspector inspected the airplane after the accident and reported that there was no evidence found to indicate a mechanical failure and the cause of the engine vibration was undetermined. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_SEA04CA054.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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