- Date
- July 1, 1991, 16:00 local (22:00 UTC)
- Place
- Driggs, ID
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Approach
- Aircraft
- N711KRLet L-13
- Weather
- Visual (VMC) · Day
- Status
- Completed · report December 4, 1992
- Report
- Approved by Office Director
- FAA report
- 19910701025229A
- Case key
- 41462
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 NTSB’s determination of the probable cause, and any contributing factors.
The pilot misjudged his distance and altitude to the runway during the approach and failed to attain the proper touchdown point for landing. His lack of experience in the make and model of glider was a related factor.
Analysis
During a solo instructional flight, the pilot allowed the glider to get low on final approach. Unable to reach the airport, he landed the glider short of the runway. During the landing roll, it collided with the airport boundary fence.
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.
Aircraft
- Registration
- N711KR
- Reported as
- Let L-13
- Category
- Glider
- Serial number
- 175127
- Engine
- unknown
- Damage
- Substantial damage
- Flight
- Instructional · Part 91
- Operator
- James Ball & Eric Soyland, doing business as Grand Valley Aviation
- Registered owner
- James Ball & Eric Soyland
- Airport
- U59 · Teton Peaks, runway 21, 5,200 × 75 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
- 55
- Certificate
- Private
- Airplane ratings
- Single-engine land
- Medical
- Class 3, Valid Medical--w/ waivers/lim
- Flight hours
- 294 total · 5 in this make and model · 218 as pilot in command · 27 in the last 90 days · 19 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 30 statute miles
- Lowest ceiling
- None
- Temperature
- 81 °F, dew point -0 °F
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N711KR · 3
Matched to the same aircraft by N-number and date.