Happy Camp Airport
Aircraft Accident/Incident Report

Happy Camp, California 96039
Saturday, May 22, 2010 13:30 PDT

NTSB Narrative Summary Released at Completion of Accident

The non-instrument-rated pilot advised an air traffic controller that he was having trouble descending through clouds. At that point, the controller lost radio and radar contact with the pilot and airplane, respectively. Shortly thereafter, emergency services began receiving telephone calls regarding a possible airplane crash. A law enforcement helicopter could not respond due to the foggy and rainy weather conditions. The wreckage was located later that evening in a forested area. Satellite imagery around the accident time showed the development of an area of convection immediately over the accident site consistent with low topped thunderstorms, which were embedded within a low cloud cover. The accident airplane encountered instrument meteorological conditions when it was lost from radar contact. The flight likely also encountered heavy rain and moderate to severe turbulence associated with the embedded thunderstorms.

NTSB Probable Cause Narrative

The pilot’s inadequate preflight planning and decision to continue to operate under visual flight rules into instrument meteorological conditions, which resulted in an encounter with an embedded thunderstorm and rain showers and moderate to severe turbulence, which ultimately resulted in the loss of airplane control.

Event Information

Type of Event Accident
Event Date 5/22/2010
Event Day of the Week Saturday
Time of Event 1330
Event Time Zone Pacific Daylight Time
Event City Happy Camp
Event State CALIFORNIA
Event Country --
Zipcode of the event site 96039
Event Date Year 2010
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 414417N
Event Location Longitude 1232328W
Event Location Airport Happy Camp Airport
Event Location Nearest Airport ID 36S
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 5
Degrees magnetic from airport --
Airport Elevation 1209
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) 30
Weather Observation Facility ID MFR
Elevation of weather observation facility 1335
Distance of event from weather observation facility (units?) 45
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3400
Sky/Lowest/Cloud Conditions Scattered
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) 11
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 290
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) 29.99
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 30332
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 Aug 7 2012 5:14PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3041Y
NTSB Number WPR10LA259
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SOCATA
Aircraft Model TB-20
Aircraft Series Identifier --
Aircraft Serial Number 1507
Certified Max Gross Weight 3083
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 5
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name Alonzo E. Mullin Trustee
Aircraft Owner Street Address --
Aircraft Owner City Medford
Aircraft Owner State OR
Aircraft Owner Country USA
Aircraft Owner Zipcode 97504
Operator is an individual? Yes
Operator Name Alonzo E. Mullin Trustee
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Medford
Operator State OR
Operator Country USA
Operator Zip code 97504
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 PSP
Departure City Palm Springs
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code MFR
Destination City Medford
Destination State OR
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 7 2012 5:02PM
User who most recently changed record coos
Since inspection or accident --
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --