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NTSB Report
February 27, 2011 · Cessna A150M · N7951V
Grass Valley, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
February 27, 2011
Injury Outcomes
No injuries (1 uninjured)
Location
Grass Valley, CA
Aircraft
Cessna A150M
Tail Number
N7951V
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR11CA148
Upon entering the airport environment, the pilot observed a snow-covered runway. He obtained an automated weather observation report (AWOS) from the non-towered airport, with no indication on the recording that the runway was closed. Shortly after touchdown, as the airplane began its roll out, the landing gear entered an area of 12-inch-deep snow and the airplane nosed over. After exiting the airplane, the pilot spoke to the airport manager who informed him that due to a power outage in the area, he had not been able to update the AWOS recording informing pilots of the runway closure due to snow. The airplane sustained substantial damage to the vertical stabilizer and to both wings. The pilot stated that there were no mechanical abnormalities with the airplane prior to the accident.
NTSB Probable Cause
The aircraft's encounter with deep snow during the landing roll out. Contributing to the accident was the airport manager's failure to update the AWOS recording to reflect the closure of the runway due to snow.
Full Narrative
Upon entering into the airport environment, the pilot observed a snow covered runway. He obtained an automated weather observation report (AWOS) for the non-towered airport, with no indication on the recording that the runway was closed. Shortly after touchdown, as the airplane began its roll out, the landing gear entered an area of 12-inch-deep snow and the airplane nosed over. After exiting the airplane, the pilot spoke to the airport manager who informed him that due to a power outage in the area, he had not been able to update the AWOS recording informing pilots of the runway closure due to snow. The airplane sustained substantial damage to the vertical stabilizer and to both wings. The pilot stated that there were no mechanical abnormalities with the airplane prior to the accident.
Flight
Event TypeAccident
Event Time13:00 PST
Nearest AirportNevada County Air Park (0nm)
Runway25
Runway Length4350 ft
Runway Width75 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna A150M
Tail NumberN7951V
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsCont Motor · O-200 SERIES · Reciprocating · 100
Seats2
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 60 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind200° @ 4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point32 C / 10 C
Altimeter30.00 inHg
Observation Time20:52
Weather SourceWFAC