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Atlas / NTSB / CEN21LA250

NTSB CAROL · Event

Event CEN21LA250

2021-06-04 West Portsmouth, Ohio, United States Airport · N/A Minor 1 aircraft Status: Completed

Registry · N20YY

FAA Aircraft Registry record.

Make / Model

VAN'S AIRCRAFT RV-9A

Year of manufacture

2006 · 15 years old at event

Engine

AMA/EXPR UNKNOWN ENG

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20060709

ADS-B equipped

Yes — Mode-S A191E7

Registrant of record

SMITH STEVEN J

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s improper use of the airplane’s fuel system, which resulted in a total loss of engine power due to fuel starvation.

Factual narrative

The pilot reported he’d taken off and was about 10 minutes from the airport when the airplane’s engine lost power and began to descend. The pilot misdiagnosed the power loss as an electronic ignition problem and troubleshot it as such. However, after turning on the electric fuel pump and switching fuel tanks several times, the pilot was unable to restore engine power and elected to perform a forced landing to a field. During the forced landing the airplane nosed over and came to rest inverted. The airplane sustained substantial damage to the rudder. Federal Aviation Administration inspectors reported that during a postaccident examination of the airplane the right fuel tank was empty, and the left fuel tank had about 4 gallons of fuel. The fuel selector had the right fuel tank selected. No other mechanical failures or malfunctions with the airplane were found that would have precluded normal operations. The pilot reported he spoke with the previous owner and was unaware that when switching fuel tanks, it could take about 10 seconds for the new tank to pick up fuel. The pilot reported that he had never run a fuel tank empty and was not familiar with how the engine would respond, and how long it would take for fuel to return to the engine when another fuel tank was selected. 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).

  • Aircraft-Fluids/misc hardware-Fluids-Fuel-Fluid management
  • Environmental issues-Physical environment-Terrain-(general)-Contributed to outcome
  • Personnel issues-Experience/knowledge-Knowledge-Knowledge of equipment-Pilot

Verbatim from NTSB's published report. Source file NTSB_2021_CEN21LA250.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type or causal vocabulary (fuel starvation). Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗