Somerset County Airport
Aircraft Accident/Incident Report

Somerset, Pennsylvania 15541
Monday, October 7, 2002 14:40 EDT

NTSB Narrative Summary Released at Completion of Accident

The flight instructor and the commercial pilot/owner had traveled to Maryland to inspect and pick-up the newly purchased airplane, and fly it back to Michigan. The commercial pilot was not current in the airplane and asked the flight instructor to accompany him and provide flight instruction while en route. As part of the pre-sale agreement, the seller hired a certificated airframe and power plant mechanic to perform an airworthiness inspection of the airplane, which included a compression check and fabric test. The mechanic endorsed the airplane's logbook for Day-VFR flight only. The day before the accident, the flight instructor flew the airplane, and afterwards, queried the seller about its slow climb rate. The seller told the flight instructor that the airplane, "was not a great performer", and a normal climb airspeed was between 60-70 miles per hour (mph), and between 95-100 mph during cruise flight. The flight instructor and pilot departed, and flew to their first intended fueling stop. During the flight, the indicated cruise airspeed was lower than expected. After landing, the airplane was filled with fuel, and prepared for the next leg of the flight. After take-off, the airplane would not climb, and only got to about 200 feet agl before it started to descend. The flight instructor took the control of the airplane and turned it to the left and right to avoid obstacles; however, the airplane struck 40-foot power lines and fell to the ground. Examination of the engine revealed low compression on the #3 cylinder, and no compression on the #5 cylinder. The air filter was found clogged with debris, and when the throttle was placed in the full forward position, the carburetor butterfly valve only opened about 1/3 of the way.

NTSB Probable Cause Narrative

The mechanic's failure to discover several mechanical deficiencies during a pre-buy inspection, which either independently or collectively resulted in a subsequent engine failure. A factor was the power lines in the forced landing area.

Event Information

Type of Event Accident
Event Date 10/7/2002
Event Day of the Week Monday
Time of Event 1440
Event Time Zone Eastern Daylight Time
Event City SOMERSET
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15541
Event Date Year 2002
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 400233N
Event Location Longitude 0790047W
Event Location Airport Somerset County Airport
Event Location Nearest Airport ID 2G9
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 240
Airport Elevation 2272
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1454 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 30
Weather Observation Facility ID JST
Elevation of weather observation facility 2284
Distance of event from weather observation facility (units?) 19
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 4200
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) 13
Dew Point at event time (in degress fahrenheit) 3
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 11
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 17
Altimeter Setting at event time (in. Hg) 30.08
Density Altitude (feet) 2401
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 13829
NTSB Notification Source EASTERN REG OPS CTR
NTSB Notification Date Oct 7 2002 12:00AM
NTSB Notification Time 1650
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Aug 26 2003 8:17AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office ALLEGHENY FAA/FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6652N
NTSB Number IAD03LA002
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 Taylorcraft
Aircraft Model 15A
Aircraft Series Identifier --
Aircraft Serial Number 5-14019
Certified Max Gross Weight 2200
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection --
Airframe hours since last inspection 3
Airframe Hours 1075
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name JAMES EDWARD MURPHY
Aircraft Owner Street Address --
Aircraft Owner City SANFORD
Aircraft Owner State MI
Aircraft Owner Country USA
Aircraft Owner Zipcode 48657
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) Ferry
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code 2G9
Departure City Somerset
Departure State PA
Departure Country USA
Departure Time 1438
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code 3BS
Destination City Midland
Destination State MI
Destination Country USA
Specific Phase of Flight Takeoff - initial climb
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Apr 16 2003 11:07AM
User who most recently changed record COXP
Since inspection or accident Time of Accident
Event Location Runway Number and Location 24
Runway Length 4697
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --