- Date
- July 29, 2019, 20:40 local (Jul 30, 2019, 02:40 UTC)
- Place
- Roundup, MT
- Injuries
- 1 serious
- Damage
- Substantial damage
- Phase of flight
- Maneuvering
- Aircraft
- C-GEYPCessna 150
- Defining event
- Maneuvering-low-alt flying: Collision with terr/obj (non-CFIT)
- Weather
- Visual (VMC) · Dusk
- Status
- Completed
- Report
- Approved by Office Director
- Investigation class
- Class 3
- NTSB office
- Western Pacific Region
- Parties
- Federal Aviation Administration
- Case key
- 100025
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot ‘s failure to maintain an adequate altitude above the trees while maneuvering to land.
Findings · 3
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
During a cross-county flight, the pilot arrived at his planned destination near sunset and was maneuvering to land. While maneuvering, the airplane struck a stand of trees and subsequently impacted terrain. The pilot reported that the airplane’s engine was “running fine” and that there were no preimpact mechanical malfunctions or failures with the airplane that would have precluded normal operation. Postaccident examination of the airframe and engine also revealed no preimpact mechanical anomalies or malfunctions that would have precluded normal operation.
Factual narrative
On July 29, 2019, about 2040 mountain daylight time, a Cessna 150M airplane, Canadian Registered C-GEYP, was substantially damaged when it was involved in an accident near Roundup Airport (RPX), Roundup, Montana. The private pilot was seriously injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot remembered flying cross-country that day starting from Oshkosh, Wisconsin. His previous stop before the accident was at Harding County Airport, (9D2), Buffalo, South Dakota, where he filled up with fuel. His final stop of the day was scheduled to be RPX, which was about 215.7 miles east-southeast of 9D2. The pilot recalled arriving in the local area of RPX about 2030. He mentioned that the airplane’s engine was “running fine” when he felt an impact, which was the last thing he remembered about the accident. He had no recollection of how he egressed from the airplane but remembered being found outside the airplane the next morning. The pilot further reported that there were no preimpact mechanical malfunctions or failures with the airplane. The accident site was located about 0.5 mile to the northwest of the approach end for runway 07. A review of the accident site pictures revealed that a tall tree was broken about 10 ft from the top, and the top portion of the tree was laying on the ground with a fresh break. A postaccident examination of the airplane revealed that it sustained substantial impact damage to the fuselage and wings. Flight control continuity was established. The engine was examined and was unable to be rotated due to the crankshaft being bent, which was consistent with impact damage. No other anomalies were noted during the examination of the engine or engine accessories that would have precluded normal operation. Sunset in Roundup, Montana, on the day of the accident was 2049.
Aircraft
- Registration
- C-GEYP
- Reported as
- Cessna 150 (M)
- Category
- Airplane
- Serial number
- 15078027
- Built
- 1976
- Airframe hours
- 3,600
- Engine
- Continental O-200, 100 hp, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · November 1, 2018
- Departed
- 9D2 · Harding, SD
- Destination
- Same as departure
- Airport
- RPX · Roundup, runway 07/25, 5,099 × 75 ft, asphalt
- Equipment
- Handheld GPS, Stall warning system
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 68
- Injuries
- Serious
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, With waivers/limitations
- Seat
- Left
- Flight hours
- 600 total · 475 in this make and model · 550 as pilot in command
Weather
- Conditions
- Visual (VMC) · Dusk
- Wind
- 130° at 7 knots
- Visibility
- 10 statute miles
- Temperature
- 82 °F, dew point 52 °F
- Altimeter
- 29.96 inHg
- Observed at
- KBIL, 40 nm away
- METAR
- METAR KBIL 300253Z 13007KT 10SM FEW110 SCT180 28/11 A2996 RMK AO2 SLP108 CB DSNT SW NW SHRA DSNT SW-NW T02830111 55003
Docket · 5
The files NTSB released with the investigation on May 18, 2022, on NTSB’s docket system: statements, records, photos and specialists’ reports. 7.3 MB in all.