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Atlas / NTSB / WPR11CA439

NTSB CAROL · Event

Event WPR11CA439

2011-09-05 Roundup, Montana, United States None 1 aircraft Status: Completed

Registry · N8772X

FAA Aircraft Registry record.

Make / Model

CESSNA 180D

Year of manufacture

1960 · 51 years old at event

Engine

CONT MOTOR O 470R (230 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

20160726

ADS-B equipped

Yes — Mode-S AC130B

Registrant of record

SARGENT LESLIE K

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

Probable cause & findings

The pilot's failure to maintain clearance from an obstacle during the landing flare.

Factual narrative

The pilot reported that prior to landing on a dirt road; he overflew the area, noting a group of cows nearby prior to entering a left-hand pattern for his intended landing area. During the landing flare, the pilot observed a cow approaching the flight path of the airplane from his left to right and attempted to maneuver the airplane to avoid a collision. Subsequently, the left main landing gear struck the cow and the airplane immediately veered to the left. Despite the pilot's control inputs, the airplane continued to the left, landed hard, bounced, and settled back onto the ground. Examination of the airplane by the pilot revealed structural damage to the left elevator, horizontal stabilizer, and engine firewall. The pilot reported no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. The pilot reported that prior to landing on a dirt road he overflew the area, noting a group of cows nearby before entering a left-hand pattern for his intended landing area. During the landing flare, the pilot observed a cow approaching the flight path of the airplane from his left and attempted to maneuver the airplane to avoid a collision. Subsequently, the left main landing gear struck the cow and the airplane immediately veered to the left. Despite the pilot's control inputs, the airplane continued to the left, landed hard, bounced, and settled back onto the ground. A postaccident examination of the airplane by the pilot revealed structural damage to the left elevator, horizontal stabilizer, and engine firewall. The pilot reported no preimpact 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).

  • C Personnel issues-Psychological-Attention/monitoring-Task monitoring/vigilance-Pilot - C
  • C Environmental issues-Physical environment-Object/animal/substance-Animal(s)/bird(s)-Response/compensation - C
  • C Personnel issues-Action/decision-Action-Incorrect action performance-Pilot - C

Verbatim from NTSB's published report. Source file NTSB_2011_WPR11CA439.txt. Findings + structured fields enriched from FAA avall.mdb. Full investigation docket on data.ntsb.gov ↗.