Nevada County Air Park Airport
Aircraft Accident/Incident Report

Grass Valley, California 95945
Sunday, February 27, 2011 13:00 PST

NTSB Narrative Summary Released at Completion of Accident

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 Narrative

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.

Event Information

Type of Event Accident
Event Date 2/27/2011
Event Day of the Week Sunday
Time of Event 1300
Event Time Zone Pacific Standard Time
Event City Grass Valley
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95945
Event Date Year 2011
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 391316N
Event Location Longitude 1210007W
Event Location Airport Nevada County Air Park
Event Location Nearest Airport ID GOO
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 3152
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1252 Pacific Standard Time
Direction of event from weather observation facility (degrees) 90
Weather Observation Facility ID BLU
Elevation of weather observation facility 5284
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 0
Dew Point at event time (in degress fahrenheit) -12
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 28287
NTSB Notification Source FAA AWP Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 24 2011 4:10PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7951V
NTSB Number WPR11CA148
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model A150M
Aircraft Series Identifier --
Aircraft Serial Number A1500524
Certified Max Gross Weight 1600
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Feb 4 2010 12:00AM
Airframe hours since last inspection 85
Airframe Hours 2500
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name PATRICK W BORIN
Aircraft Owner Street Address --
Aircraft Owner City RANCHO MURIETA
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95683-9128
Operator is an individual? Yes
Operator Name PATRICK W BORIN
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City RANCHO MURIETA
Operator State CA
Operator Country USA
Operator Zip code 95683-9128
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code RIU
Departure City Rancho Murieta
Departure State CA
Departure Country USA
Departure Time 1030
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code GOO
Destination City Grass Valley
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 24 2011 3:54PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location 25
Runway Length 4350
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --