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Atlas / NTSB / CEN25LA221

NTSB CAROL · Event

Event CEN25LA221

2025-06-24 Pierre, South Dakota, United States Serious 1 aircraft Status: Completed

Registry · N107ML

FAA Aircraft Registry record.

Make / Model

AIR TRACTOR INC AT-402B

Year of manufacture

2012 · 13 years old at event

TCDS

A17SW · AIR TRACTOR INC

Engine

P&W CANADA PT6A-34AG (750 hp)

Seats / Engines

2 seats · 1 engine

Last airworthiness date

20120301

ADS-B equipped

Yes — Mode-S A01FD3

Registrant of record

MIKE OGAN FARMS

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot’s failure to maintain clearance with the power lines while maneuvering that resulted in an in-flight collision with the power lines and impact with terrain.

Factual narrative

During an aerial application of a field, the airplane was in a 20 to 30o descent at 140 kts when its vertical stabilizer struck a power line. The vertical stabilizer and rudder separated from the airplane, which resulted in the airplane’s uncontrolled descent and impact with the ground. The airplane sustained substantial damage to the vertical stabilizer, rudder, fuselage, and both wings. The pilot stated that he knew the location of the power line, but it was pilot error that resulted in the collision with the power line. The pilot stated there were no mechanical malfunctions or failures with the airplane before the accident. 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-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Not attained/maintained
  • Personnel issues-Psychological-Attention/monitoring-Monitoring environment-Pilot

Verbatim from NTSB's published report. Source file NTSB_2025_CEN25LA221.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.