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NTSB Report
January 30, 2017 · Cessna 180 B · N5222E
Tyonek, AK
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
January 30, 2017
Injury Outcomes
No injuries (3 uninjured)
Location
Tyonek, AK
Aircraft
Cessna 180 B (1959)
Tail Number
N5222E
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA17CA134
The pilot of the tundra tire- and tailwheel-equipped airplane reported that, while on the flight back to his home airport, he decided to land on a snow-covered airstrip. He flew over the landing area three times before deciding on the fourth pass to attempt a full-stop landing. During the touchdown of the three-point landing, he realized the snow was deeper than he had expected, and the airplane decelerated rapidly. The pilot increased power, but the airplane continued to sink in the snow. Subsequently, the airplane nosed over and slid to a stop inverted. The airplane sustained substantial damage to its empennage. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
NTSB Probable Cause
Environmental issues-Physical environment-Runway/land/takeoff/taxi surface-Snow/slush/ice covered surface-Decision related to condition - C
Full Narrative
The pilot of the tundra tire and tailwheel-equipped airplane reported that while on the flight back to his home airport, he decided to land on a snow-covered airstrip. The pilot further reported that he flew over the landing area three times before deciding on the fourth pass to attempt a full stop landing. During the touchdown of the 3-point landing, he realized the snow was deeper than he had expected and the airplane decelerated rapidly. The pilot reported that he increased power, but the airplane continued to sink in the snow. Subsequently, the airplane nosed over and slid to a stop inverted. The airplane sustained substantial damage to its empennage. The pilot reported there were no pre-accident mechanical failures or malfunctions with the airframe or engine that would have precluded normal operation.
Flight
Event TypeAccident
Event Time15:00 AKST
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 180 B
Tail NumberN5222E
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsCont Motor · O-470-R-13 · Reciprocating · 230
Seats4
People & Injuries
Injury SummaryNo injuries (3 uninjured)
Fatal0
Serious0
Minor0
Uninjured3
Total3
Crew 1Age 42 · Third Class · None
Crew 2None
Crew 3None
Conditions
ConditionsVMC
LightDaylight
Wind20° @ 5 kt
Visibility10 sm
CeilingBroken clouds 6000 ft
Temperature / Dew Point18 C / 18 C
Altimeter30.17 inHg
Observation Time23:53
Weather SourceWFAC