NTSB CAROL · Event
Event CEN21LA391
Registry · N222L
FAA Aircraft Registry record.
Make / Model
CESSNA 320E
Engine
CONT MOTOR IO 520 SERIES (285 hp)
Seats / Engines
6 seats · 2 engines
Last airworthiness date
19860629
ADS-B equipped
Yes — Mode-S A1E969
Registrant of record
TWO MOTOR ODOR LLC
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
A forced landing due to a loss of engine power on the right engine for a reason that could not be determined based on the available evidence.
Factual narrative
On August 28, 2021, about 1934 central daylight time, a Cessna 320E airplane, N222L, was substantially damaged when it was involved in an accident near Windthorst, Texas. The pilot sustained minor injuries. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. According to the pilot, he had picked up the airplane from Cox Field Airport (PRX), near Paris, Texas, and flew about 57 nautical miles (nm) to Sherman Municipal Airport (SWI), Sherman, Texas, where he filled the airplane’s six fuel tanks. Afterward, the pilot departed SWI for his home airport, which was Lubbock Executive Airpark (F82), Lubbock, Texas, a distance of about 261 nm from SWI. About 20 minutes after departure from SWI, the pilot detected a partial loss of power involving the right engine. He noticed that the fuel flow indication on the right engine had dropped, so he activated the electric boost pump, which restored power briefly before the engine again lost power. The pilot reported that he did not switch fuel tanks and that he subsequently shut off and feathered the right engine. The pilot decided to divert to Olney Municipal Airport (ONY), Olney, Texas, but the airplane was not able to maintain altitude. Once the pilot realized that the airplane did not have sufficient altitude to reach ONY, he performed a forced landing to a field. The pilot reported that the left engine continued to operate until he reduced power for the forced landing. During the landing, the airplane struck trees, and the fuselage and both wings sustained substantial damage. Postaccident examination of the airplane was limited because it had been disassembled to facilitate removal from the accident site. Examination of the right engine revealed suction and compression on all cylinders when the engine crankshaft was rotated. Both magnetos produced spark on all ignition leads when rotated by hand. Accessory gear continuity was established when the engine crankshaft was rotated. The engine fuel controls were not available for further examination. No anomalies were noted with the right engine. The airplane maintenance records were not available during the investigation of this accident. The pilot reported that the twin-engine airplane’s right engine lost power about 20 minutes after takeoff. The pilot’s activation of the electric boost pump restored power for a short time before the power on the right engine was again lost, after which the pilot shut down the right engine and feathered the propeller. The pilot diverted to another airport, but the airplane was unable to maintain altitude. As a result, the pilot executed a forced landing to a field, which resulted in substantial damage to the airplane. Postaccident examination revealed no anomalies with the right engine that would have precluded normal operations. Given the available evidence for this investigation, the cause of the right engine’s loss of power could not be determined. 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).
- — Not determined-Not determined-(general)-(general)-Unknown/Not determined
Verbatim from NTSB's published report. Source file
NTSB_2021_CEN21LA391.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 (maintenance). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2022 · arXiv preprint
Experimental investigations on the characteristics of snow accretion using the EMU-320 model train
This paper presents a snow accretion test conducted in a climate wind tunnel to investigate the icing process on a model train.
- Embry-Riddle Scholarly Commons 2017 · Conference paper
Pilot Control Design Influences on Pilot Monitoring Effectiveness of Crew Resource Management in Airbus 320 Landings
The purpose of this paper is to examine the effects of Airbus flight control design on pilot perception of Crew Resource Management (CRM) in the landing phase of flight.
- Embry-Riddle Scholarly Commons 2015 · Journal article (JAAER)
Is “Green Dot” Always the Optimum Engines-Out Glide Speed on the Airbus A320 Aircraft?
The dual-engine failure checklist of the Airbus A320 states that the optimum airspeed at which the aircraft can be flown is the “green dot” speed when an engine restart is considered impossible.
- Embry-Riddle Scholarly Commons 2026 · Journal article (IJAAA)
From Reactive to Predictive: A hybrid Trust-Mediated Adoption Framework for Data-Driven Maintenance in Distributed-Authority Aviation Environments
Modern aviation maintenance operates within increasingly data-intensive technological environments, yet the operational integration of predictive maintenance into routine decision-making remains incon…
- Semantic Scholar 2025 · Article (Applied Sciences)
Decision-Making Framework for Aviation Safety in Predictive Maintenance Strategies
The implementation of predictive maintenance (PM) in aviation presents unique challenges due to strict safety requirements, complex operational environments, and regulatory constraints.
- Embry-Riddle Scholarly Commons 2024 · Journal article (JAAER)
Low-Resource Automatic Speech Recognition Domain Adaptation – A Case-Study in Aviation Maintenance
With timeliness and efficiency being critical in the aviation maintenance industry, the need has been growing for smart technological solutions that optimize and streamline the different underlying ta…
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