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Atlas / NTSB / CEN23LA240

NTSB CAROL · Event

Event CEN23LA240

2023-06-15 Sibley, Iowa, United States Airport · ISB None 1 aircraft Status: Completed

Registry · N23679

FAA Aircraft Registry record.

Make / Model

TAYLORCRAFT BC-65

Year of manufacture

1939 · 84 years old at event

Engine

CONT MOTOR A&C65 SERIES (65 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

19560419

ADS-B equipped

Yes — Mode-S A22239

Registrant of record

SIEVERDING WAYNE A

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain adequate airspeed on final approach resulting in the airplane inadvertently exceeding the critical angle of attack and entering an inadvertent aerodynamic stall.

Factual narrative

The pilot reported that during an extended final approach, the “bottom fell out” and the airplane entered an aerodynamic stall. The pilot was unable to recover before the airplane touched down short of the runway. The left main landing gear collapsed during the hard landing, and the airplane sustained substantial damage to the fuselage and right wing. The pilot reported that there were no preaccident mechanical malfunctions or failures with the airplane that would have precluded normal operation. 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).

  • Personnel issues-Task performance-Use of equip/info-Aircraft control-Pilot
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Airspeed-Not attained/maintained
  • Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Angle of attack-Not attained/maintained

Verbatim from NTSB's published report. Source file NTSB_2023_CEN23LA240.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 (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.

Browse the full corpus — academia portal ↗