IAD96LA142

NTSB accident investigation · Schweizer SGS-1-26E · Elmira, NY · September 1, 1996

Accident · Serious injuriesLimited investigationFinal report
Date
September 1, 1996, 10:00 local (14:00 UTC)
Place
Elmira, NY
Injuries
1 serious
Damage
Substantial damage
Phase of flight
Approach
Aircraft
N1142SSchweizer SGS-1-26E
Weather
Visual (VMC) · Day
Status
Completed · report March 31, 1998
Report
Approved by Office Director
FAA report
19960901046609A
Case key
28104

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 altitude and airspeed during the landing approach, resulting in a stall/spin and subsequent encounter with an embankment.

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 flightApproach
Altitude - misjudgedPilot in commandCause
Airspeed - inadequatePilot in commandCause
Stall/spin - inadvertentPilot in commandCause
On ground/water encounter with terrain/waterLanding
Terrain condition - drop-off/descending embankment

Analysis

The pilot reported that she had made two successful landings in the glider, and was on the third solo flight. According to the pilot, she was planning to land on runway 16, but decided at the last minute to change runways. She stated that the altitude and airspeed was inadequate to complete the landing on the new runway. She reported that she skidded the glider with the rudder to avoid banking too steeply and the combination initiated a stall and spin to the left. According to an FAA inspector, this was the pilot's third flight in this glider. The pilot reported that there was no mechanical malfunction, and the accident could have been prevented if she maintained a proper pattern airspeed, not change runways at the last minute, and not use a forward slip too low on final approach with the spoilers closed.

Factual narrative

On September 1, 1996, at about 1409 eastern daylight time (EDT), N1142S, a Schweizer SGS-1-26E glider, overshot runway 17 during landing at Harris Hill Airport, in Elmira, New York. The student pilot, the sole occupant, was seriously injured. The airplane sustained substantial damage. Visual meteorological conditions prevailed and a flight plan was not filed. The local, instructional flight was conducted under 14 CFR Part 91, and originated from Elmira, New York, at 1320 EDT.

The pilot reported that she completed two successful landings and this was her third solo flight. She said, "...started my landing approach to runway 16 at Harris Hill with the idea of using a slip to lose altitude, if possible. On final I initiated a slip with the spoilers closed so I would not be too low. I then realized I was too low for a slip, but in terminating I ballooned and became concerned with completing successful landing on 16 due to being too high. I then decided to extend my glide path and turn East to land on Harris Hill's auxiliary runway located at the South end of the field. However, my altitude and airspeed were both too low to complete this maneuver...I skidded the glider with the rudder to avoid banking too steeply and this in combination with my low airspeed initiated a stall and spin to the left... ."

According to a Federal Aviation Administration (FAA) Safety Inspector, this was the pilot's third flight in this glider. The glider overshot the runway and slid down an embankment. The pilot stated that "there was no mechanical malfunction and the accident could have been prevented if she had maintained the proper pattern airspeed, flying coordinated at low airspeeds close to the ground, not changing runways at the last minute, and not using a forward slip too low on final with spoilers closed".

Aircraft

Registration
N1142S
Reported as
Schweizer SGS-1-26E
Category
Glider
Serial number
522
Airframe hours
351
Engine
unknown
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Harris Hill Soaring Corp.,
Registered owner
Dorianne E Riggs
Airworthiness certificate
Standard, Normal
Last inspection
Annual · November 17, 1995 · 38 hours before
Departed
4NY8 · NY
Airport
4NY8 · Harris Hill, runway 16, 1,700 × 200 ft, asphalt

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
59
Certificate
Private
Airplane ratings
Single-engine land
Medical
Class 3, Valid Medical--no waivers/lim.
Seat
Front
Flight hours
137 total · 2 in this make and model · 6 as pilot in command · 20 in the last 90 days · 16 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 5 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
81 °F, dew point 55 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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