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NTSB Report
May 10, 2026 · Cessna 172 · N6643A
Marysvale, UT
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 10, 2026
Injury Outcomes
2 injuries (1 serious injury, 1 minor injury)
Location
Marysvale, UT
Aircraft
Cessna 172 (1956)
Tail Number
N6643A
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
WPR26LA180
The pilot reported that while flying along the west side of Monroe Mountain about 1,000 ft above ground level, the airplane encountered a downdraft near a river drainage at the southern end of the valley. The pilot applied full engine power, maneuvered to avoid a tree near the right wingtip, and attempted to maintain airspeed. During the maneuver, the airplane collided with another tree that the pilot had not seen. The airplane subsequently impacted terrain and was consumed by a postimpact fire. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot's failure to maintain clearance from trees while maneuvering in mountainous terrain prior to encountering a downdraft.
Full Narrative
The pilot reported that while flying along the west side of Monroe Mountain about 1,000 ft above ground level, the airplane encountered a downdraft near a river drainage at the southern end of the valley. The pilot applied full engine power, maneuvered to avoid a tree near the right wingtip, and attempted to maintain airspeed. During the maneuver, the airplane collided with another tree that the pilot had not seen. The airplane subsequently impacted terrain and was consumed by a postimpact fire. The pilot reported that there were no mechanical malfunctions or failures with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time12:14 MDT
Nearest AirportDraw On The West Side Of Mount (0nm)
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireGrd
Aircraft ExplosionNo
Aircraft
AircraftCessna 172
Tail NumberN6643A
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · O-300-B · Reciprocating · 145
Seats2
People & Injuries
Injury Summary2 injuries (1 serious injury, 1 minor injury)
Fatal0
Serious1
Minor1
Uninjured0
Total2
Crew 1Age 87 · Sprt · Serious
Crew 2Basc · Minor
Conditions
ConditionsVMC
LightDaylight
Wind20° @ 10 kt, gusting 20 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point7 F
Altimeter30.20 inHg
Observation Time11:52
Weather SourceWFAC