NYC95LA199

NTSB accident investigation · Let Blanik L-13 · Mayville, NY · August 19, 1995

Accident · No injuriesLimited investigationFinal report
Date
August 19, 1995, 17:45 local (21:45 UTC)
Place
Mayville, NY
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N69ASLet Blanik L-13
Weather
Visual (VMC) · Day
Status
Completed · report January 8, 1997
Report
Approved by Office Director
FAA report
19950819049289A
Case key
39034

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 improper flight control input during the landing roll in high grass, which resulted in a ground loop and subsequent wingtip damage.

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.

On ground/water encounter with terrain/waterLanding - roll
Terrain condition - high vegetation
Flight controls - improper use ofPilot in commandCause

Analysis

The glider pilot stated, '...I noticed a small plane moving down runway 31. I was intending to land on 13....I landed in the high grass west of the runway, about 10 feet from the edge of the runway....not wanting to roll across the runway into the powerlines, ditch, or road, I applied full right rudder and deployed my spoilers. I hadn't noticed that my right wing had not yet cleared the high grass....my wingtip dipped, caught in ground and damaged glider. The sole cause of the damage to the glider was the ground loop instigated by my applying rudder while wing was still in grass...' Additionally, the student pilot had a total time of about 18 hours, of which 1 hour was solo time.

Factual narrative

On August 19, 1995, about 1745 eastern daylight time, a Let Blanik L-13, glider, N69AS, operated by Aero Soaring Club Inc., was substantially damaged when it ground looped during the landing at the Dart Airport, Mayville, New York. The student pilot was not injured. Visual meteorological conditions prevailed for the instructional flight that departed Mayville at 1705. No flight plan had been filed for the local flight conducted under 14 CFR Part 91.

In the NTSB form 6120.1/2, the pilot stated:

...I noticed a small plane moving down runway 31. I was intending to land on 13....I altered my base leg, hoping to cut back and land halfway down the runway, thus landing behind the small plane. I landed in the high grass west of the runway, about 10 feet from the edge of the runway....Not wanting to roll across the runway into the powerlines, ditch, or road, I applied full right rudder and deployed my spoilers. I hadn't noticed that my right wing had not yet cleared the high grass west of runway....The glider did a 180 degree turn....My wingtip dipped, caught in ground and damaged glider. The sole cause of the damage to the glider was the ground loop instigated by my applying rudder while wing was still in grass....

Additionally, at the time of the accident, the winds were reported as calm, and the pilot had approximately 18 hours of total flight time, of which 1 hour was solo time.

Aircraft

Registration
N69AS
Reported as
Let Blanik L-13 (BLANIK L-1)
Category
Glider
Serial number
026941
Airframe hours
1,045
Engine
unknown
Damage
Substantial damage
Flight
Instructional · Part 91
Registered owner
Aero Soaring Club Inc.
Airworthiness certificate
Standard, Normal
Last inspection
Annual · April 12, 1995 · 30 hours before
Departed
D79
Airport
D79 · Dart Airport, runway 13, 2,750 × 50 ft, grass/turf

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
29
Certificate
Student
Medical
Unknown
Seat
Front
Flight hours
18 total · 1 as pilot in command · 4 in the last 90 days · 1 in the last 30 days

Weather

Conditions
Visual (VMC) · Day
Wind
Variable at 5 knots
Temperature
81 °F

FAA reports on this event · 1

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