Du Bois-Jefferson County Airport
Aircraft Accident/Incident Report

Du Bois, Pennsylvania 15801
Wednesday, April 9, 2003 7:15 EDT

NTSB Narrative Summary Released at Completion of Accident

The airplane was on an instrument landing system (ILS) approach in instrument meteorological conditions. The captain initially stated that the airplane was on the ILS approach with the engine power set at flight idle. About 300 feet above the ground, and 1/4 to 1/2 mile from the threshold, the captain made visual contact with the runway. The captain stated that the left engine then surged, which caused the airplane to yaw right and drift left. At the time, the airplane was in visual conditions, and on glideslope, with the airspeed decreasing through 106 knots. The captain aligned the airplane with the runway and attempted to go-around, but the throttles were difficult to move. The airplane began to stall and the captain lowered the nose. The airplane subsequently struck terrain about 500 feet prior to the runway. After the captain was informed that the engine power should not be at flight idle during the approach, he amended his statement to include the approach power setting at 1,000 lbs. of torque. The co-pilot initially reported that the engine anomaly occurred while at flight idle. However, the co-pilot later amended his statement and reported that the anomaly occurred as power was being reduced toward flight idle, but not at flight idle. Examination of the left engine did not reveal any pre-impact mechanical malfunctions. Examination of the airplane cockpit did not reveal any anomalies with the throttle levers. Review of a flight manual for the make and model accident airplane revealed that during a normal landing, 1,100 lbs of torque should be set prior to turning base leg. The manual further stated to reduce the power levers about 30 feet agl, and initiate a gentle flare. The reported weather at the airport about 5 minutes before the accident included a visibility 3/4 mile in mist, and an overcast ceiling at 100 feet. The reported weather at the airport about 7 minutes after the accident included visibility 1/4 mile in freezing fog and an overcast ceiling at 100 feet. Review of the terminal procedure for the respective ILS approach revealed that the decision height was 200 feet agl, and the required minimum visibility was 1/2 mile.

NTSB Probable Cause Narrative

The captain's failure to maintain the proper glidepath during the instrument approach, and his failure to perform a go-around. Factors were a low ceiling and reduced visibility due to mist.

Event Information

Type of Event Accident
Event Date 4/9/2003
Event Day of the Week Wednesday
Time of Event 715
Event Time Zone Eastern Daylight Time
Event City Du Bois
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15801
Event Date Year 2003
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 411042N
Event Location Longitude 0785355W
Event Location Airport Du Bois-Jefferson County
Event Location Nearest Airport ID DUJ
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 1817
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 710 Eastern Standard Time
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID DUJ
Elevation of weather observation facility 1817
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation EST
Lighting Conditions Dawn
Lowest Ceiling Height 100
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 0.75
Air Temperature at event time (in degrees celsius) 0
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.1
Density Altitude (feet) --
Intensity of Precipitation Light
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) 14992
NTSB Notification Source Allegheny FSDO
NTSB Notification Date Apr 9 2003 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Mar 2 2004 8:06AM
User who most recently changed record NTSB\MONR
Basic weather conditions Instrument Meteorological Cond
FAA District Office Allegheny, PA

Aircraft Involved

Aircraft #1

Aircraft Registration Number N805SW
NTSB Number NYC03LA081
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed IFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Short Brothers
Aircraft Model SD3-30
Aircraft Series Identifier --
Aircraft Serial Number 3055
Certified Max Gross Weight 22600
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 2
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Mar 24 2003 12:00AM
Airframe hours since last inspection 26
Airframe Hours 24401
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Sky Way Enterprises Inc.
Aircraft Owner Street Address --
Aircraft Owner City Kissimmee
Aircraft Owner State FL
Aircraft Owner Country USA
Aircraft Owner Zipcode 34741
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 DKEA
Owner has at least one certificate --
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Cargo
Type of Flying (Per_Bus / Primary) --
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code PIT
Departure City Pittsburgh
Departure State PA
Departure Country USA
Departure Time 605
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code DUJ
Destination City Du Bois
Destination State PA
Destination Country USA
Specific Phase of Flight Approach - final approach fix (FAF)/outer marker to threshold (IFR)
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Dec 9 2003 1:53PM
User who most recently changed record PEAR
Since inspection or accident Time of Accident
Event Location Runway Number and Location 25
Runway Length 5504
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --