NYC96LA111

NTSB accident investigation · Schweizer SGS-2-33A · Bloomingburg, NY · May 19, 1996

Accident · Serious injuriesLimited investigationFinal report
Date
May 19, 1996, 12:40 local (16:40 UTC)
Place
Bloomingburg, NY
Injuries
1 serious, 1 minor
Damage
Minor damage
Phase of flight
Enroute
Aircraft
N65847Schweizer SGS-2-33A
Weather
Visual (VMC) · Day
Status
Completed · report April 15, 1999
Report
Approved by Office Director
FAA report
19960519010849A
Case key
39185

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 pilot's failure to maintain adequate airspeed, which resulted in an inadvertent stall spin 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.

Loss of control - in flightCruise
Weather condition - gusts
Airspeed - inadequatePilot in commandCause
Stall/spin - inadvertentPilot in command
In flight collision with objectDescent - uncontrolled
Terrain condition - mountainous/hilly
Object - tree(s)

Analysis

The pilot reported that he was ridge soaring, when he encountered a wind gust, and the glider drifted over the crest of a ridge. He tried to return to the windward side of the ridge; however, he encountered a wind shear, the glider stalled, and then it entered a spin. The pilot recovered from the spin at a low altitude and flew into an area of scrub oaks in a nose down attitude. The pilot reported: 'Flying faster could have avoided the stall....'

Factual narrative

On May 19, 1996, at 1240 eastern daylight time, a Schweizer SGS-2-33A, a glider, struck trees while ridge soaring near Bloomingburg, New York. The glider received minor damage. The commercial pilot received minor injuries, and the passenger received serious injuries. Visual meteorological conditions prevailed for the personal flight that originated at Wurtsboro Airport, Wurtsboro, New York. The flight was conducted under 14 CFR Part 91.

The pilot had been ridge soaring prior to the accident. In the NTSB Accident Report, he stated:

"...We worked our way in both directions within the area of the airport along the windward side of the ridge. The wind was from 300 [degrees] at 18 kts. with gusts to 25 kts. While working a thermal at 1300 feet AGL at a 45 MPH best thermaling air speed, the wind had pushed the glider to the top of the ridge which has an elevation of 1,000 ft. I continued the right turn with the intention of leaving the area as soon as I could attain a westerly heading when we encountered a strong wind sheer which stalled the glider while still in the turn. Pushed forward on the control stick but there was not enough room to recover and the glider landed in a forest of scrub oak at the top of the ridge...."

A witness at the airport reported seeing the glider above a ridge line to the east of the airport. The glider then entered a spin of about 1 1/2 rotations and disappeared behind the ridge line.

In the Recommendation section of the NTSB Accident Report, the pilot stated:

"Flying faster could have avoided the stall...."

The pilot reported that his total time was 554 hours with 200 hours in gliders. In the preceding 90 days, he had flown 1.2 hours in gliders.

Aircraft

Registration
N65847
Reported as
Schweizer SGS-2-33A
Category
Glider
Serial number
337
Airframe hours
7,781
Engine
unknown
Damage
Minor damage
Flight
Personal · Part 91
Registered owner
Wurtsboro Flight Service
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · April 29, 1996 · 12 hours before
Departed
N82 · Wurtsboro, NY
Flight plan
Unknown

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
60
Certificates
Commercial, Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--w/ waivers/lim
Seat
Rear
Flight hours
554 total · 159 in this make and model · 377 as pilot in command · 2 in the last 90 days · 2 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
260° at 7 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
82 °F, dew point 61 °F
Altimeter
30.00 inHg
Observed at
MSV, 19 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.