N/A Airport
Aircraft Accident/Incident Report

Frazier Park, California 93225
Friday, July 8, 2011 13:15 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that, during the flight, he was following an interstate highway and that he then turned west to intercept a state highway and head toward his destination. He was flying about 1,000 feet above mountainous terrain when he became lost and disoriented while trying to navigate using maps and GPS. He then thought that the airplane was losing altitude. Subsequently, he concentrated on the terrain rather than direction, decided to make an off-airport landing, and landed the airplane in a dry river bottom. During the landing roll, the nosewheel dug into soft dirt, and the airplane nosed over. Postaccident engine and airframe examinations revealed no evidence of preimpact mechanical malfunctions or failures that would have precluded normal operation.

NTSB Probable Cause Narrative

The pilot’s geographic disorientation, which resulted in an off-airport precautionary landing in soft terrain and a subsequent nose over.

Event Information

Type of Event Accident
Event Date 7/8/2011
Event Day of the Week Friday
Time of Event 1315
Event Time Zone Pacific Daylight Time
Event City Frazier Park
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93225
Event Date Year 2011
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 344416N
Event Location Longitude 1191505W
Event Location Airport N/A
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1253 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KSBA
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
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) 22
Dew Point at event time (in degress fahrenheit) 16
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.86
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 32615
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 Jan 30 2014 3:50PM
User who most recently changed record plah
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4901Z
NTSB Number WPR11LA318
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 PIPER
Aircraft Model PA-22-108
Aircraft Series Identifier --
Aircraft Serial Number 22-8486
Certified Max Gross Weight --
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 May 9 2011 12:00AM
Airframe hours since last inspection --
Airframe Hours 5325
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name John Thomason
Aircraft Owner Street Address --
Aircraft Owner City Sonoma
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95476
Operator is an individual? No
Operator Name John Thomason
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Sonoma
Operator State CA
Operator Country USA
Operator Zip code 95476
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
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 LSN
Departure City Los Banos
Departure State CA
Departure Country USA
Departure Time 1030
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code LPS
Destination City Lompoc
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 31 2014 6:13PM
User who most recently changed record eckd
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --