NTSB CAROL · Event
Event CEN13TA441
Registry · N820HP
FAA Aircraft Registry record.
Make / Model
BELL OH-58A
Seats / Engines
4 seats · 1 engine
ADS-B equipped
Yes — Mode-S AB3198
Registrant of record
TENNESSEE DEPT OF SAFETY AND HOMELAND SECURITY
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's inadvertent aerodynamic stall at a low altitude, which resulted in a loss of control and impact with terrain.
Factual narrative
On July 26, 2013, about 1910 central daylight time, a Cessna 182S airplane, N820HP, impacted terrain while maneuvering near Tecumseh, Oklahoma. A postimpact fire ensured. The pilot, an Oklahoma Highway Patrol (OHP) trooper, sustained serious injuries. The airplane was substantially damaged. The airplane was registered to and operated by the Oklahoma Department of Public Safety under the provisions of 14 Code of Federal Regulations Part 91 as a public use flight. Visual meteorological conditions prevailed for the flight, which was not operated on a flight plan. The flight originated from the University of Oklahoma Westheimer Airport (OUN), Norman, Oklahoma, about 1813. The pilot was dispatched to assist OHP troopers and a local police department in the pursuit of an individual involved in a traffic accident. The driver had fled the scene after the accident and was thought to be hiding in a wooded area. The pilot reported that he arrived on-scene about 15 minutes after departing OUN. He established radio contact with an OHP trooper on the ground and informed the trooper that he had located the suspect. However, that OHP trooper was not located near the police officers, and the pilot did not have the ability to contact the police officers by radio. The pilot observed the police officers walking in the wrong direction, away from the location of the vehicle driver. Without the ability to communicate with the police officers directly, the pilot overflew the officers and pointed in the direction of the vehicle driver. As the officers approached the location of the vehicle driver, they looked up at the airplane for further guidance. At that point, the pilot reduced engine power and entered a slow descending turn over the vehicle driver's location, at which time the police officers began walking into the adjacent tree area toward the individual. The pilot reported that about the same time, the airplane's aerodynamic stall warning sounded. He added that the left wing subsequently "stalled hard," and the nose of the airplane pitched down and started to rotate to the left. He responded by applying a wings level aileron control input and increased to full engine power. He maintained directional control with rudder control and was able to prevent the airplane from entering a spin; however, he was not able to fully recover from the stall and the airplane impacted the terrain. A postaccident examination of the airplane, performed by Federal Aviation Administration (FAA) inspectors with the assistance of the airplane manufacturer, did not reveal any anomalies consistent with a preimpact failure or malfunction. Primary flight control continuity was confirmed from the cockpit controls to each control surface. The flap actuators were extended consistent with a 30-degree flap deflection. The left wing fuel tank contained approximately 7 gallons of a fluid consistent in appearance to 100 low lead aviation fuel. The right wing fuel tank had been consumed by the postimpact fire. Records on file with the FAA indicated that a Horton STOL (short takeoff and landing) kit was installed on the accident airplane in March 2002. Drooped wing leading edges were observed installed on the airplane at the accident site. The pilot, an Oklahoma Highway Patrol (OHP) trooper, was dispatched to assist fellow OHP troopers and a local police department in the pursuit of an individual who was involved in a traffic accident. The driver fled the scene after the accident and was thought to be hiding in a wooded area. The pilot established radio contact with an OHP trooper on the ground; however, he was not able to contact the local police officers by radio. As the local police officers approached the location of the vehicle driver, they looked up at the airplane for further guidance. At that time, the pilot reduced the airplane's engine power and entered a slow descending turn over the vehicle driver's location, and the police officers on the ground began walking toward the individual. About the same time, the airplane's aerodynamic stall warning sounded. The left wing subsequently "stalled hard," and the airplane pitched nose-down and started to rotate to the left. The pilot was able to maintain directional control of the airplane and avoided a spin; however, he was not able to fully recover from the stall, and the airplane impacted the terrain. A postaccident examination of the airplane did not reveal any anomalies consistent with a preimpact failure or malfunction. Source: NTSB Aviation Accident Database Retrieved: 2026-02-12
NTSB Findings
Hierarchical cause / factor breakdown from the FAA bulk avdata database. Each finding tagged C (Cause) or F (Factor).
- C Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained - C
- C Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained - C
Verbatim from NTSB's published report. Source file
NTSB_2013_CEN13TA441.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, loss of control). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- Semantic Scholar 2016 · Article (Interacción)
Trajectory Recovery System: Angle of Attack Guidance for Inflight Loss of Control
This paper describes the design and development of an ecological display to aid pilots in the recovery of an In-Flight Loss of Control event due to a Stall (ILOC-S).
- NTSB Aircraft Accident Reports 2010 · Accident report
Loss of Control on Approach — Colgan Air Flight 3407
Colgan Air 3407 / Continental Connection (Q400) Buffalo NY, February 12, 2009 — 50 fatalities. Definitive investigation of the Colgan 3407 stall-stick-pusher crash on approach to Buffalo.
- 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 …
- Embry-Riddle Scholarly Commons 2025 · Journal article (JAAER)
A Scoping Review of Aviation Loss of Control Inflight Research
Loss of control – inflight (LOC-I) contributes to aircraft accidents at unacceptably high rates. Significant industry efforts and research have aimed to improve LOC-I prevention, detection, and recove…
- arXiv 2025 · arXiv preprint
Quadratic Programming Approach to Flight Envelope Protection Using Control Barrier Functions
Ensuring the safe operation of aerospace systems within their prescribed flight envelope is a fundamental requirement for modern flight control systems.
- SKYbrary (Eurocontrol) 2024 · SKYbrary article
Loss of Control In-Flight (LOC-I) — SKYbrary Knowledge Base
SKYbrary comprehensive knowledge-base entry on Loss of Control In-Flight — definitions, contributing factors, accident case studies (Air France 447, Colgan 3407), and prevention strategies.
Browse the full corpus — academia portal ↗