Port Of Whitman Airport
Aircraft Accident/Incident Report

Colfax, Washington 99111
Thursday, February 18, 2010 8:38 PST

NTSB Narrative Summary Released at Completion of Accident

The pilot was departing for the first aerial application flight of the day and the airplane was loaded with fertilizer. The pilot did not apply carburetor heat during the ground idle or taxi. He stated that during the takeoff roll, the engine did not produce normal power. He attempted to dump the fertilizer before the airplane collided with terrain in a nearby field. Post accident examination of the airplane and engine did not reveal any mechanical anomalies. Review of the carburetor icing probability chart revealed that the temperature and dew point, 8 and -1 degrees Celsius respectively, were conducive to serious icing conditions at glide power.

NTSB Probable Cause Narrative

A partial loss of engine power due to carburetor ice as a result of the pilot's failure to use carburetor heat.

Event Information

Type of Event Accident
Event Date 2/18/2010
Event Day of the Week Thursday
Time of Event 838
Event Time Zone Pacific Standard Time
Event City Colfax
Event State WASHINGTON
Event Country --
Zipcode of the event site 99111
Event Date Year 2010
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 465131N
Event Location Longitude 1172450W
Event Location Airport Port of Whitman
Event Location Nearest Airport ID S94
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 2181
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 853 Pacific Standard Time
Direction of event from weather observation facility (degrees) 160
Weather Observation Facility ID PUW
Elevation of weather observation facility 2556
Distance of event from weather observation facility (units?) 14
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) 8
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.19
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) 26948
NTSB Notification Source WP FAA Com Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 22 2010 2:28PM
User who most recently changed record johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6774Q
NTSB Number WPR10LA139
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed Unknown
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name GRUMMAN ACFT ENG COR-SCHWEIZER
Aircraft Model G-164B
Aircraft Series Identifier --
Aircraft Serial Number 284B
Certified Max Gross Weight 4500
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 26 2009 12:00AM
Airframe hours since last inspection 106
Airframe Hours 8830
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name TLC FLYING INC
Aircraft Owner Street Address PO BOX 307
Aircraft Owner City COLFAX
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 99111-0307
Operator is an individual? No
Operator Name TLC FLYING INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address PO BOX 307
Operator City COLFAX
Operator State WA
Operator Country USA
Operator Zip code 99111-0307
Operator Code WB8G
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number WB8G214Y
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) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code S94
Departure City Colfax
Departure State WA
Departure Country USA
Departure Time 846
Departure Time Zone PST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code S94
Destination City Colfax
Destination State WA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 10 2010 6:54PM
User who most recently changed record stam
Since inspection or accident Last Inspection
Event Location Runway Number and Location 25
Runway Length 3209
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --