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NTSB Report
March 9, 2019 · Piper PA18 150 · N4100Z
Pullman, WA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 9, 2019
Injury Outcomes
1 injury (1 minor injury)
Location
Pullman, WA
Aircraft
Piper PA18 150 (1964)
Tail Number
N4100Z
Injuries
Minor
Aircraft Damage
Substantial
NTSB Number
GAA19CA159
The pilot of the tailwheel- and ski-equipped airplane reported that, while landing off airport on a snow-covered ridge, the back of the right ski struck about a 6-inch-tall, firm snow drift. The right ski then pitched forward, the tip dug into the "crusty" snow, and the airplane nosed over. The airplane sustained substantial damage to the fuselage, empennage, and lift strut. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
Environmental issues-Physical environment-Runway/land/takeoff/taxi surface-Snow/slush/ice covered surface-Effect on operation
Full Narrative
The pilot of the tailwheel, ski-equipped airplane reported that, while landing off airport, on a snow-covered ridge, the back of the right ski struck about a 6" tall, firm snow drift. The right ski then pitched forward, the tip dug into the "crusty" snow, and the airplane nosed over. The airplane sustained substantial damage to the fuselage, empennage, and lift strut. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time12:20 PST
Nearest Airport0nm
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftPiper PA18 150
Tail NumberN4100Z
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2B · Reciprocating · 160
Seats2
People & Injuries
Injury Summary1 injury (1 minor injury)
Fatal0
Serious0
Minor1
Uninjured0
Total1
Crew 1Age 63 · Third Class · Minor
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point16 C / 12 C
Altimeter29.95 inHg
Observation Time11:53
Weather SourceWFAC