Aircraft Accident/Incident Report

Dorrington, California 95222
Saturday, October 23, 2010 14:27 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that, while the airplane was level at 15,000 feet in instrument meteorological conditions, he failed to apply carburetor heat to the engine. After several minutes, the engine began losing power, and the airplane was not able to sustain flight. During the descent for a forced landing in mountainous terrain, the airplane descended below the cloud base about 2,000 feet above the ground, and the pilot observed a road and a clearing. During the landing rollout, the airplane impacted trees, which severed its wings. Icing probability charts indicated that carburetor ice was probable under the atmospheric conditions in which the airplane had been flying. The pilot reported that if he had applied the carburetor heat during flight, the accident likely would not have occurred.

NTSB Probable Cause Narrative

The pilot’s failure to use carburetor heat while cruising in carburetor icing conditions, which resulted in a loss of engine power.

Event Information

Type of Event Accident
Event Date 10/23/2010
Event Day of the Week Saturday
Time of Event 1427
Event Time Zone Pacific Daylight Time
Event City Dorrington
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95222
Event Date Year 2010
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 381650N
Event Location Longitude 1201216W
Event Location Airport --
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 1353 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 1
Weather Observation Facility ID TVL
Elevation of weather observation facility 6264
Distance of event from weather observation facility (units?) 38
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height 2900
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) 8
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.07
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report KTVL 232053Z AUTO 19011KT 8SM -RA OVC029 08/05 A30
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 29282
NTSB Notification Source AWP-6 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 Nov 18 2011 4:28PM
User who most recently changed record coos
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N228KK
NTSB Number WPR11LA025
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-28-236
Aircraft Series Identifier --
Aircraft Serial Number 28-7911056
Certified Max Gross Weight 3000
Aircraft Category Airplane
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 2
Cabin Crew Seats --
Passenger Seats 2
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 3688
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site Yes
ELT Type Unknown
Aircraft Owner Name JOHNSON RUSSELL
Aircraft Owner Street Address --
Aircraft Owner City TRUCKEE
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 96161
Operator is an individual? Yes
Operator Name Otis R. Johnson III
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City TRUCKEE
Operator State CA
Operator Country USA
Operator Zip code 96161
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 TRK
Departure City Truckee
Departure State CA
Departure Country USA
Departure Time 1330
Departure Time Zone PDT
Destination Same as Local Flt --
Destination Airport Code L08
Destination City Borrego Valley
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Nov 18 2011 4:28PM
User who most recently changed record coos
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --