NTSB CAROL · Event
Event ATL04LA111
Registry · N321TR
FAA Aircraft Registry record.
Make / Model
BEECH F90
Seats / Engines
10 seats · 2 engines
Last airworthiness date
19800520
ADS-B equipped
Yes — Mode-S A373C0
Registrant of record
VERTIVUE LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain adequate airspeed which resulted in a stall. A factor was loss of engine power and water in the fuel.
Factual narrative
On May 6, 2004, at 1833 eastern daylight time, a Riggs Skyraider homebuilt experimental airplane, N321TR, registered to and operated by a private pilot, collided with the ground while turning base to final at a private airstrip in Blounts Creek, North Carolina. The personal flight was operated under the provision of Title 14 CFR Part 91. Visual meteorological conditions prevailed and no flight plan was filed. The airplane was substantially damaged. The pilot was fatally injured. The flight originated from the same private airstrip in Blounts Creek, North Carolina, on May 6, 2004 at 1832. The circumstances and purpose of the flight are unknown. If the pilot completed a preflight inspection of the airplane and fuel system before takeoff are also unknown. However, according to a witness, the airplane was on a base to final for the grass strip runway when the left wing dipped and the airplane went straight into the ground. The airplane came to rest in a field with a nose down attitude, 100 yards northwest of the runway. Based on the GPS track data recovered from the airplane, the flight duration was one minute and twenty seconds. Examination of the wreckage site found the airplane in the immediate area, approximately 35 degrees in a nose down attitude. The engine was buried several inches into the ground and displaced aft into the cockpit area. Examination of the airplane revealed the fuselage was buckled, the empennage was deflected towards the right side, both wings had leading edge crush damage, the left wing ribs were broken and the right main wheel was separated. The examination also revealed that there was six pounds of lead weight added to the tail section at the bottom of the horizontal stabilizer and there were no problems found with the flight controls. The engine was equipped with two carburetors. One carburetor was separated from the engine, and the other carburetor remained with the engine assembly. The examination of the carburetor that remained with the engine disclosed a small amount of corrosion in the bowl. Examination of the carburetor that was found separated from the engine disclosed a small amount of fuel and water in the bowl. There were two inline fuel filters installed in the fuel system, one filter for each carburetor. The examination of the filters also disclosed an undetermined amount of water. The only fuel drain installed in the fuel system was installed on the bottom of the header tank. When the drain assembly was removed from the header tank, four ounces of water were recovered from the header tank. The left wing tank had no drain assembly installed but about 12 ounces of water were recovered from that tank. The right fuel tank had been separated from the airframe and was empty. The Medical Examiner at Pitt County Memorial Hospital, Greenville, North Carolina conducted the autopsy of the pilot on May 8, 2004. The reported cause of death was "multiple injuries due to aircraft crash". The Forensic Toxicology Fatal Accident Report by the Federal Aviation Administration in Okalahoma City, Okalahoma detailed the results of the postmortem toxicology of specimens from the pilot. The report revealed that diphenhydramine was present in urine but not detected in blood. No carbon monoxide or cyanide was detected in blood and no ethanol was detected in urine. A review of the pilot's flight log disclosed that he had accumulated a total of 485 hours and had flown 5 hours in the Riggs Skyraider I. The pilot was issued a private pilot flight certificate for single engine land airplanes on March 28, 1973. The pilot's last third class medical certificate was issued on May 29, 2002, no limitations were listed on the certificate. The airplane was issued a special airworthiness certificate dated November 22, 2003. The circumstances of the flight and if a complete preflight or fuel system check was performed by the pilot are not known. A witness stated that the airplane was on a base to final for the grass strip runway when the left wing dipped and the airplane went straight into the ground. The airplane came to rest in a field with a nose down attitude, 100 yards northwest of the runway. Based on the global positioning system (GPS) track recovered from the airplane, the flight duration was one minute and twenty seconds. Examination of the wreckage site found the airplane in the immediate area, approximately 35 degrees in a nose down attitude. The engine was buried several inches into the ground and displaced aft into the cockpit area. Examination of the airplane revealed the fuselage was buckled, the empennage was deflected towards the right side, both wings had leading edge crush damage, the left wing ribs were broken and the right main wheel was separated. The examination also revealed that there was six pounds of lead weight added to the tail section at the bottom of the horizontal stabilizer and there were no problems found with the flight controls. Further examination discovered that there was a small amount of corrosion from water inside the bowl of the carburetor that was found separated from the engine and the bowl from the other carburetor contained fuel and water. The two-inline fuel filters both contained water. The only fuel drain in the aircraft was connected to the bottom of the header tank. The drain was removed and four ounces of water was discovered in the header tank. The left wing tank had no facilities for a drain in the tank and 10 to 12 ounces of water was found in that tank. The right fuel tank had been separated and was empty. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_2004_ATL04LA111.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…
Browse the full corpus — academia portal ↗