Aircraft Accident/Incident Report

Palmerton, Pennsylvania 18071
Sunday, November 28, 1999 16:40 EST

NTSB Narrative Summary Released at Completion of Accident

While ridge soaring, the pilot elected to delay his landing back to the airport. The sun became low on the horizon, and the glider began to loose lift. The pilot attempted to fly the glider close to a ridgeline in an attempt to gain lift, but could not locate the ridgeline due to a glare through the windscreen. The glider began to descend and the pilot performed a forced landing to a parking lot. The sun set below the horizon at 1637.

NTSB Probable Cause Narrative

The pilot's improper decision to delay his landing. A factor related to the accident was the loss of thermal lift.

Event Information

Type of Event Accident
Event Date 11/28/1999
Event Day of the Week Sunday
Time of Event 1640
Event Time Zone Eastern Standard Time
Event City PALMERTON
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 18071
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
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 1651 Eastern Standard Time
Direction of event from weather observation facility (degrees) 170
Weather Observation Facility ID ABE
Elevation of weather observation facility 394
Distance of event from weather observation facility (units?) 14
Time Zone of the weather observation EST
Lighting Conditions Dusk
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
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) 7
Dew Point at event time (in degress fahrenheit) -2
Wind Direction (degrees magnetic) 280
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
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 --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1310
NTSB Notification Source --
NTSB Notification Date Nov 29 1999 12:00AM
NTSB Notification Time 1550
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Jan 10 2001 10:12AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N117TB
NTSB Number NYC00LA042
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 Schempp-Hirth
Aircraft Model DISCUS A
Aircraft Series Identifier DISCUS A
Aircraft Serial Number 17
Certified Max Gross Weight 1157
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 1
Number of Engines --
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jul 3 1999 12:00AM
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 THOMAS G. BELTZ
Aircraft Owner Street Address 109 MALLARD DR.
Aircraft Owner City NORTH WALES
Aircraft Owner State PA
Aircraft Owner Country
Aircraft Owner Zipcode 19454
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 14N
Departure City BELTZVILLE
Departure State PA
Departure Country
Departure Time 0
Departure Time Zone
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 --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 10 2001 12:27PM
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 --