Aircraft Accident/Incident Report

Monroe, Washington 98272
Thursday, May 10, 2007 14:20 PDT

NTSB Narrative Summary Released at Completion of Accident

During cruise flight the engine lost partial power and the rpm decreased from 2,300 to 1,200. The pilot applied carburetor heat, but engine power was not restored, and the pilot made a forced landing in an open field. The nose gear collapsed during the landing. An examination of the engine revealed no evidence of internal component failure. Review of a carburetor icing probability chart disclosed that the temperature and dew point were within an area of the chart annotated "Moderate Icing -- Cruise Power or Serious Icing Descent Power."

NTSB Probable Cause Narrative

A loss of engine power during cruise due to carburetor icing, and the pilot's delay in using carburetor heat.

Event Information

Type of Event Accident
Event Date 5/10/2007
Event Day of the Week Thursday
Time of Event 1420
Event Time Zone Pacific Daylight Time
Event City Monroe
Event State WASHINGTON
Event Country --
Zipcode of the event site 98272
Event Date Year 2007
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 475007N
Event Location Longitude 1215421W
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 1453 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 265
Weather Observation Facility ID PAE
Elevation of weather observation facility 606
Distance of event from weather observation facility (units?) 18
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) 15
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 5
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.12
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) 23704
NTSB Notification Source FAA
NTSB Notification Date May 10 2007 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Jun 30 2008 11:48AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Seattle, WA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N68166
NTSB Number LAX07LA155
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 152
Aircraft Series Identifier --
Aircraft Serial Number 15282158
Certified Max Gross Weight 1670
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 Apr 1 2007 12:00AM
Airframe hours since last inspection 10
Airframe Hours 6363
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Northway Aviation of Washington, Inc.
Aircraft Owner Street Address 10108 32nd Avenue West, Bldg C-3
Aircraft Owner City Everett
Aircraft Owner State WA
Aircraft Owner Country USA
Aircraft Owner Zipcode 98204
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
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 PAE
Departure City Everett
Departure State WA
Departure Country USA
Departure Time 1420
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record May 28 2008 2:33PM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --