NTSB CAROL · Event
Event DEN99LA115
Registry · N4163V
FAA Aircraft Registry record.
Make / Model
CESSNA 170
Year of manufacture
1948 · 51 years old at event
Engine
CONT MOTOR C145 SERIES (145 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19560428
ADS-B equipped
Yes — Mode-S A4ED3F
Registrant of record
ROOT SHANE G
Source: FAA Aircraft Registry (releasable master file).
Aircraft involved
Probable cause & findings
The pilot's failure to maintain directional control of the aircraft during landing roll. A factor was the high density altitude and the high vegetation (sagebrush).
Factual narrative
On June 22, 1999, approximately 1130 mountain daylight time, a Cessna 170, N4163V, registered to and operated by the pilot, was substantially damaged after colliding with terrain during landing roll at Animas Air Park, Durango, Colorado. The private pilot, the sole occupant aboard, was not injured. The aircraft was being operated as a personal cross-country flight under Title 14 CFR Part 91, and no flight plan was filed. The flight originated from Lamar, Colorado, at 0700. Visual meteorological conditions prevailed. According to the pilot, he approached the airport from the south for landing and listened to Durango-La Plata County Airport's Automated Weather Observing System (AWOS), located 6.3 nautical miles to the southeast. The wind was reported to be light and variable. During his first attempt to land on runway 19, the approach was too high and he performed a go around. During his second landing attempt, he bounced once, and decided to go around again. His third landing was successful; however upon touching down, the aircraft began to depart the right side of the runway. The right wheel exited the pavement, and he was unable to return completely back onto the runway. The airplane continued to the right, and the aircraft traveled at a high speed through sagebrush. In attempting to maneuver the aircraft back onto the runway, the airplane skidded sideways towards the west at a 90 degree angle from the runway. The aircraft tilted onto its left side with the right wingtip in the air. The left wingtip impacted the ground, bounced back, and the airplane then came to rest in an upright position. During the landing sequence, the aircraft sustained substantial damage to the horizontal stabilizer, elevator, left wing tip, and wing spar extension. During the third landing attempt, the pilot stated that the aircraft's indicated airspeed was 60 knots, and the ground speed was approximately 85 knots. Density altitude at the time of the accident was calculated to be 9,422 feet. During the pilot's third landing attempt, the aircraft departed the right side of the runway. The right wheel exited the pavement, and he was unable to return completely back onto the runway. The airplane continued to the right, and the aircraft traveled at a high speed through sagebrush. In attempting to maneuver the aircraft back onto the runway, the airplane skidded sideways towards the west at a 90 degree angle from the runway. The aircraft tilted onto its left side, bounced back, and came to rest in an upright position. During landing, the aircraft's indicated airspeed was 60 knots, and the ground speed was approximately 85 knots. Density altitude at the time of the accident was calculated to be 9,422 feet. Source: NTSB Aviation Accident Database (Pre-2008 Archive) Retrieved: 2026-02-12
Verbatim from NTSB's published report. Source file
NTSB_1999_DEN99LA115.txt.
Findings + structured fields enriched from FAA avall.mdb.
Full investigation docket on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
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Determination of the Wetting Angle of Germanium and Germanium-Silicon Melts on Different Substrate Materials
During Bridgman growth of semiconductors detachment of the crystal and the melt meniscus has occasionally been observed, mainly under microgravity (microg) conditions.
- NASA NTRS 2019 · Abstract
Contact Angles and Surface Tension of Germanium-Silicon Melts
Precise knowledge of material parameters is more and more important for improving crystal growth processes. Two important parameters are the contact (wetting) angle and the surface tension, determinin…
- arXiv 2019 · arXiv preprint
Heat and water vapor transfer in the wake of a falling ice sphere and its implication for secondary ice formation in clouds
We perform direct numerical simulations of the settling of an ice sphere in an ambient fluid accounting for heat and mass transfer with the aim of studying in a meteorological context the case of fall…
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