ATL98LA051

NTSB accident investigation · PZL-Bielsko SZD-48-3 · Pikeville, TN · February 21, 1998

Accident · Minor injuriesLimited investigationFinal report
Date
February 21, 1998, 15:00 local (20:00 UTC)
Place
Pikeville, TN
Injuries
1 minor
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N25MZPZL-Bielsko SZD-48-3
Weather
Visual (VMC) · Day
Status
Completed · report December 8, 1998
Report
Approved by Office Director
FAA report
19980221003859A
Case key
3976

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The loss of thermal lift.

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.

Forced landingCruise
Weather condition - no thermal liftCause
In flight collision with objectEmergency descent/landing
Object - tree(s)
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot stated he proceeded at 3,500 feet AGL to the western plateau where the thermal activity became about 2-4 knots of lift and 4-6 knots of sink. According to the pilot, the lifts were ill-defined, and he flew mostly into sinks. As his altitude decreased to 2,500 feet AGL, he turned back to the departure airport. The glider continued to experience 4-6 knots of sink, so the pilot stated he began looking for a suitable field for landing. He overflew the landing field at 2,000 feet AGL and determined there was a fairly constant 6 knot sink. As he approached the field, he stated the sink increased, and he collided with trees at the approach end of his desired landing field.

Factual narrative

On February 21, 1998, at 1500 eastern standard time, a PDPS PZL-BIELSKO SZD-48-3, N25MZ, collided with the trees during approach to landing in Pikeville, Tennessee. The personal flight was operated by the pilot under the provisions of Title 14 CFR Part 91 with no flight plan filed. Visual meteorological conditions prevailed at the time of the accident. The glider sustained substantial damage, and the commercial pilot received minor injuries. The flight originated in Whitwell, Tennessee at 1330.

According to the FAA inspector, the glider lost thermal lift while soaring which led the pilot to attempt an emergency off-airport landing. During the descent, the glider collided with a tree.

According to the pilot, he took an aerotow to the eastern edge of the valley and released at 3,500 feet above ground level (AGL). The pilot then flew approximately 22 miles to Crossville Airport, which he crossed at 3,000-3,500 feet AGL. The pilot stated he then proceeded to the western plateau where the thermal activity became about 2-4 knots of lift and 4-6 knots of sink. According to the pilot, the lifts were ill defined, and he flew mostly into sinks. As his altitude decreased to 2,500 feet AGL, he turned back to Pikeville. The glider continued to experience 4-6 knots of sink, so the pilot stated he began looking for a suitable field for landing. He overflew the landing field at 2,000 feet AGL and determined there was a fairly constant 6 knot sink. He stated he did not lower the landing gear or extend the spoilers in order to reduce drag. As he approached the field, he stated the sink increased, and he collided with trees at the approach end of his desired landing field.

Aircraft

Registration
N25MZ
Reported as
PZL-Bielsko SZD-48-3
Category
Glider
Serial number
B-2074
Airframe hours
123
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Maciej Z. Pandera
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Annual · July 5, 1997 · 16 hours before
Departed
PVT · Whitwell, TN

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
45
Certificate
Private
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
268 total · 123 in this make and model · 191 as pilot in command · 9 in the last 90 days

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
10 statute miles
Lowest ceiling
None
Temperature
61 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
CHA, 35 nm away

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.