Aircraft Accident/Incident Report

Pipersville, Pennsylvania 18947
Tuesady, April 21, 1998 14:20 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot had been soaring for approximately 2 hours when he lost sight of his intended landing site. As he lost altitude, he continued to slow the glider while looking for a field to land in. Just prior to touch down, he stalled the glider, which struck a tree, then hit the side of a barn before coming to rest up right.

NTSB Probable Cause Narrative

the pilot's misjudgment of distance and altitude, while on an approach to an off-airport landing area, which resulted in a lack of airspeed and/or altitude to reach the intended landing area (undershoot), a stall or mush into tree(s), and collision with a barn.

Event Information

Type of Event Accident
Event Date 4/21/1998
Event Day of the Week Tuesday
Time of Event 1420
Event Time Zone Eastern Daylight Time
Event City PIPERSVILLE
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 18947
Event Date Year 1998
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1351 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 355
Weather Observation Facility ID PHL
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 30
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 7000
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) 10
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) 7
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 150
NTSB Notification Source --
NTSB Notification Date Apr 21 1998 12:00AM
NTSB Notification Time 1550
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 11:11AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N298BA
NTSB Number NYC98LA097
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 Let
Aircraft Model L-23 SUPER BLANIK
Aircraft Series Identifier L-23 SUPER
Aircraft Serial Number 968215
Certified Max Gross Weight --
Aircraft Category Glider
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 --
Number of Engines --
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DON J. SUMMA
Aircraft Owner Street Address 17 ROHIWEE ROAD
Aircraft Owner City WARMINSTER
Aircraft Owner State PA
Aircraft Owner Country
Aircraft Owner Zipcode 18974
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 No
Departure Airport Code 9N1
Departure City ERWINNA
Departure State PA
Departure Country
Departure Time 1200
Departure Time Zone EDT
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 Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --