Knox County Regional Airport
Aircraft Accident/Incident Report

Rockland, Maine 04854
Sunday, August 29, 2010 14:28 EDT

NTSB Narrative Summary Released at Completion of Accident

During the takeoff climb, the pilot noticed that the airplane's engine wasn't producing as much power as it should have been when compared to other flights. The airplane's altitude was insufficient to return to the airport and the pilot performed a forced landing straight ahead. During the forced landing, the airplane impacted trees and a postcrash fire ensued. Examination of the airplane and engine revealed no preimpact abnormalities that could account for the loss of engine power. While weather conditions for carburetor icing were noted as “serious icing – glide power” at the time of the accident, the investigation was unable to determine the cause of the power loss.

NTSB Probable Cause Narrative

The loss of engine power for undetermined reasons.

Event Information

Type of Event Accident
Event Date 8/29/2010
Event Day of the Week Sunday
Time of Event 1428
Event Time Zone Eastern Daylight Time
Event City Rockland
Event State MAINE
Event Country --
Zipcode of the event site 04854
Event Date Year 2010
Event Date Month 8
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 440336N
Event Location Longitude 0690557W
Event Location Airport Knox County Regional Airport
Event Location Nearest Airport ID RKD
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 1
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1355 Eastern Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID RKD
Elevation of weather observation facility 56
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation EDT
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) 30
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 260
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 9
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 14
Altimeter Setting at event time (in. Hg) 30.02
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) 28156
NTSB Notification Source FAA New England ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Mar 28 2011 1:38PM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2493N
NTSB Number ERA10LA453
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 120
Aircraft Series Identifier --
Aircraft Serial Number 12746
Certified Max Gross Weight 1470
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 Sep 29 2009 12:00AM
Airframe hours since last inspection --
Airframe Hours 809
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name HAMILTON WILLIAM L
Aircraft Owner Street Address --
Aircraft Owner City DAMARISCOTTA
Aircraft Owner State ME
Aircraft Owner Country USA
Aircraft Owner Zipcode 04543-4032
Operator is an individual? No
Operator Name HAMILTON WILLIAM L
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City DAMARISCOTTA
Operator State ME
Operator Country USA
Operator Zip code 04543-4032
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 Yes
Departure Airport Code RKD
Departure City Rockland
Departure State ME
Departure Country USA
Departure Time 1427
Departure Time Zone EST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code RKD
Destination City Rockland
Destination State ME
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 28 2011 1:39PM
User who most recently changed record kenj
Since inspection or accident Time of Accident
Event Location Runway Number and Location 31
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --