Event CEN24LA070

2023-11-08 Claremore, Oklahoma, United States Airport · OK15 None 1 aircraft Status: Completed

Registry · N522TF

FAA Aircraft Registry record.

Make / Model

HELICOPTERES GUIMBAL CABRI G2

Year of manufacture

2022 · 1 years old at event

TCDS

R00005RD · HELICOPTERES GUIMBAL

Engine

LYCOMING O-360-J2A (145 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20230123

ADS-B equipped

Yes — Mode-S A6920B

Registrant of record

TRUFLIGHT HELICOPTER ACADEMY LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N522TF HELICOPTERES GUIMBAL CABRI G2 None

Probable cause & findings

The flight instructor’s failure to maintain sufficient rotor speed during a practice autorotation which resulted in a hard landing.

Factual narrative

The student pilot and flight instructor initiated a 90° practice autorotation. As the helicopter descended, the flight instructor took control of the helicopter to cushion the landing after the student pilot flared too high. During the attempted recovery, sufficient rotor speed was not maintained, and the helicopter experienced a hard landing. The helicopter sustained substantial damage to the tailboom. Both the student pilot and the flight instructor reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operations. 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-Use of equip/system-Instructor/check pilot
— Personnel issues-Action/decision-Action-Delayed action-Instructor/check pilot
— Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Landing flare-Not attained/maintained

Verbatim from NTSB's published report. Source file NTSB_2023_CEN24LA070.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.

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