Somerset County Airport
Aircraft Accident/Incident Report

Somerset, Pennsylvania 15501
Friday, November 12, 1999 13:45 EST

NTSB Narrative Summary Released at Completion of Accident

The pilot performed several high speed taxi runs to 'test the brakes', without the use of flaps. He then lowered the flaps, taxied 1/3 the distance down the runway, and power was added. As the airplane 'lifted slightly off the runway,' about 8-10 feet off the ground, the 'engine quit' and the airplane 'pitched over to the left.' The engine then regained power, and the pilot attempted to land the airplane. During the landing, the airplane made numerous contacts with the ground over a distance of 75 feet. The pilot stated he had no intention of flight on the day of the accident and when the airplane impacted the ground, 'it wasn't really flying.' Particles of the fuel tank lining were found in the fuel when it was drained from the main tank, after the accident. Fuel drained from the auxiliary tank resembled 'pond scum' and contained an odor of an aviation fuel and automobile gasoline mixture. Prior to the accident, the airplane had not been flown in five years.

NTSB Probable Cause Narrative

The pilot's improper preflight which resulted in a loss of power due to contaminated fuel, and the pilot's failure to maintain aircraft control after the loss of power. A factor in the accident was fuel contamination.

Event Information

Type of Event Accident
Event Date 11/12/1999
Event Day of the Week Friday
Time of Event 1345
Event Time Zone Eastern Standard Time
Event City SOMERSET
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15501
Event Date Year 1999
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport SOMERSET COUNTY AIRPORT
Event Location Nearest Airport ID 2G9
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 2272
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1350 Eastern Standard Time
Direction of event from weather observation facility (degrees) 300
Weather Observation Facility ID LBE
Elevation of weather observation facility 1185
Distance of event from weather observation facility (units?) 22
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 14
Dew Point at event time (in degress fahrenheit) 2
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 805
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1413
NTSB Notification Source --
NTSB Notification Date Nov 12 1999 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 12 2000 12:02PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N101WR
NTSB Number IAD00LA005
Missing Aircraft Indicator N
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 Ankenbruck
Aircraft Model SEA HAWK
Aircraft Series Identifier SEA HAWK
Aircraft Serial Number 101
Certified Max Gross Weight 1600
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Nov 9 1999 12:00AM
Airframe hours since last inspection --
Airframe Hours --
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DONALD A MITCHELL
Aircraft Owner Street Address 68124 KLINGER LAKE RD
Aircraft Owner City STURGIS
Aircraft Owner State MI
Aircraft Owner Country
Aircraft Owner Zipcode 49091
Operator is an individual? --
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? No
Certified for Part 133 or 137 Operation Unknown
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 2G9
Departure City
Departure State PA
Departure Country
Departure Time 1340
Departure Time Zone EST
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 Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 24
Runway Length 4697
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --