Vansant Arpt Airport
Aircraft Accident/Incident Report

Erwinna, Pennsylvania 18920
Saturday, May 4, 2013 10:50 EDT

NTSB Narrative Summary Released at Completion of Accident

The glider pilot intended to practice stalls after being towed to an altitude of 3,000 feet mean sea level. Shortly after takeoff, the tow pilot observed the glider yaw left, then right, and then left again. He added that, for most of the tow, the glider appeared to be above the normal tow position with its nose pointed 45 degrees right. About 400 feet above ground level, the glider pilot released the tow line, and the glider turned about 180 degrees left; its right wing then impacted trees, and the glider pitched down and impacted terrain. Postaccident examination of the wreckage revealed that the rudder control cables were rigged backward. The accident flight was the first flight following the glider’s most recent annual inspection. Before the annual inspection, the rudder had been removed for repair then re-installed. The mechanic who conducted a flight control check after the annual inspection with assistance from another pilot seated in the cockpit stated that he confirmed movement of the rudder while at the rear of the glider; however, he did not see which pedal the pilot was pushing and did not verbally confirm the corresponding position of the rudder pedals. If the pilot had conducted a thorough preflight inspection, he should have been able to detect that the rudder control cables were rigged backward.

NTSB Probable Cause Narrative

The pilot’s loss of glider control due to improper rigging of the rudder control cables, the mechanic’s inadequate flight control checks following the glider’s most recent annual inspection, and the pilot’s failure to perform a thorough preflight inspection.

Event Information

Type of Event Accident
Event Date 5/4/2013
Event Day of the Week Saturday
Time of Event 1050
Event Time Zone Eastern Daylight Time
Event City Erwinna
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 18920
Event Date Year 2013
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 402902N
Event Location Longitude 0750559W
Event Location Airport Vansant Arpt
Event Location Nearest Airport ID 9N1
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 390
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1154 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 185
Weather Observation Facility ID DYL
Elevation of weather observation facility 394
Distance of event from weather observation facility (units?) 10
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) 17
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) 3
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.28
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report METAR KDYL 041554Z AUTO VRB03KT 10SM CLR 17/07 A30
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 32422
NTSB Notification Source FAA Eastern 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 5 2014 10:59AM
User who most recently changed record kenj
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2045T
NTSB Number ERA13LA229
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SCHWEIZER
Aircraft Model SGS 2-33A
Aircraft Series Identifier --
Aircraft Serial Number 475
Certified Max Gross Weight 1040
Aircraft Category Glider
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 1
Total number of seats on the aircraft 2
Number of Engines 0
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Apr 15 2013 12:00AM
Airframe hours since last inspection 0
Airframe Hours 13624
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name CIVIL AIR PATROL
Aircraft Owner Street Address --
Aircraft Owner City MAXWELL AFB
Aircraft Owner State AL
Aircraft Owner Country USA
Aircraft Owner Zipcode 36112-5937
Operator is an individual? No
Operator Name CIVIL AIR PATROL
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City MAXWELL AFB
Operator State AL
Operator Country USA
Operator Zip code 36112-5937
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) Flight Test
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 9N1
Departure City Erwinna
Departure State PA
Departure Country USA
Departure Time 1050
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 9N1
Destination City Erwinna
Destination State PA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Mar 5 2014 10:59AM
User who most recently changed record kenj
Since inspection or accident Last Inspection
Event Location Runway Number and Location 07
Runway Length 3058
Runway Width 120
Sight Seeing flight No
Air Medical Flight No
Medical Flight --