BFO94LA003

NTSB accident investigation · Schweizer SGS 2-33A · Morrisville, VT · November 7, 1993

Accident · No injuriesLimited investigationFinal report
Date
November 7, 1993, 12:00 local (16:00 UTC)
Place
Morrisville, VT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N1178SSchweizer SGS 2-33A
Weather
Visual (VMC) · Day
Status
Completed · report October 20, 1994
Report
Approved by Office Director
FAA report
19931107042239A
Case key
8863

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 lack of experience in soaring which resulted in inadequate altitude to clear the ridge and subsequent collision with the terrain. A related factor was the high terrain.

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.

In flight collision with terrain/waterCruise
Altitude - inadequatePilot in commandCause
Lack of total experiencePilot in commandFactor
Terrain condition - high terrainFactor

Analysis

According to the student pilot, he was soaring over the mountains. He stated that he was gaining and losing about 200 feet of altitude as the glider soared over the ridge from north to south; however, on the last traverse the glider lost lift and he was unable to clear the high terrain and collided with trees. The pilot reported that there was no mechanical malfunction and the accident could have been prevented if he had more experience in mountain soaring.

Factual narrative

On Sunday, November 7, 1993, at 1200 eastern standard time, N1178S, a Schweizer SGS 2-33A glider, owned by Peter Smyth of Morrisville, Vermont, and piloted by Allan Edwards collided with a ridge 3 miles east of the Morrisville-Stow Airport, Morrisville, Vermont. Visual meteorological conditions prevailed, and a flight plan was not filed. The student pilot, the sole occupant, was not injured. The airplane was substantially damaged. The local, instructional flight originated in Morrisville, and was conducted under 14 CFR 91.

The pilot said he was soaring over the mountain, heading north to south and gaining and losing about 200 feet of altitude as he soared. The student pilot reported that, "on the last traverse I lost lift over a shelf and within a few seconds was down...but there was insufficient lift or momentum to turn away from the mountain." The glider collided with trees on the side of the ridge. The student pilot stated that there was no mechanical malfunction and the accident could have been prevented if he had more experience in mountain soaring.

Aircraft

Registration
N1178S
Reported as
Schweizer SGS 2-33A
Category
Glider
Serial number
228
Airframe hours
2,588
Engine
unknown
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Peter H Smyth
Registered owner
Peter H Smyth
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · June 8, 1993 · 85 hours before

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
66
Certificate
Student
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
68 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 10 knots, gusting 15
Visibility
20 statute miles
Lowest ceiling
None
Temperature
39 °F

FAA reports on this event · 1

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