- Date
- April 11, 2002, 16:00 local (20:00 UTC)
- Place
- New Smithville, PA
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N908BTWSK PZL PW-5
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 13, 2003
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration
- FAA report
- 20020411007159A
- Case key
- 54504
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's inadequate evaluation of the weather which resulted in the loss of thermal lift and collision with trees.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
During an "out-and-back" cross-country flight in a glider, the pilot noticed that the thermal lift began to dissipate, and he decided to "land out" in a field 1,500 feet below. He made a traffic pattern entry, and performed a forced landing. While on the base leg, the glider struck the top of a row of 20-foot-tall "hedge trees" at the edge of the field, and came to rest suspended in one of the trees. Examination of the glider revealed no mechanical anomalies.
Factual narrative
On April 11, 2002, at 1500 eastern daylight time, a WSK PZL PW-5 glider, N908BT, was substantially damaged during a forced landing near New Smithville, Pennsylvania. The certificated private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local flight, which originated at Blairstown Airport (1N7), Blairstown, New Jersey. The personal flight was conducted under 14 CFR Part 91.
In a telephone interview, the pilot stated that he departed Blairstown about 1300. He intended to fly an "out-and-back" cross-country flight to Kutztown, Pennsylvania; however, during the return trip, lift began to dissipate, and he decided to "land out" in a field below him. He performed a traffic pattern entry to the field, and prepared for a forced landing to the east. While on the base leg, the glider struck the top of a row of 20-foot-tall 'hedge trees' at the edge of the field. The glider came to rest suspended in one of the trees.
In a written statement, the pilot noted that the glider was at 1,500 feet above ground level when, "an outlanding field was chosen."
The pilot stated that he obtained weather information from the Internet prior to his flight, which reported winds from 130 degrees, at 14 knots.
The pilot reported 912 hours of total flight experience, 577 of which were in gliders.
A Federal Aviation Administration (FAA) inspector performed an on-scene examination of the glider. According to the inspector, the tail of the glider was separated and substantial damage was observed to both wings. A flight control continuity check revealed no mechanical anomalies.
The winds reported at the Lehigh Valley International Airport (ABE), Allentown, Pennsylvania, about 10 miles to the northeast, at 1451, were from 120 degrees at 9 knots.
Aircraft
- Registration
- N908BT
- Reported as
- WSK PZL PW-5
- Category
- Glider
- Serial number
- 1707003
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- William Thar
- Airworthiness certificate
- Special, Experimental (Special)
- Departed
- 1N7 · Blairstown, NJ
- Destination
- 1N7 · Blairstown, NJ
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 58
- Injuries
- None
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Expired
- Last flight review
- December 2, 2000
- Seat
- Left
- Flight hours
- 912 total · 98 in this make and model · 827 as pilot in command · 15 in the last 90 days · 8 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 120° at 9 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 63 °F, dew point 37 °F
- Altimeter
- 30.55 inHg
- Observed at
- ABE, 12 nm away
Docket · 1
The files NTSB released with the investigation on April 1, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 58 KB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.