- Date
- July 19, 2011, 17:21 local (23:21 UTC)
- Place
- Brigham City, UT
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Enroute
- Aircraft
- N797VSchleicher ASW-27
- Defining event
- Enroute: Loss of lift
- Weather
- Visual (VMC) · Day
- Status
- Completed · report March 8, 2012
- Report
- Approved by Office Director
- NTSB office
- Western Pacific Region
- Parties
- Salt Lake FSDO
- Case key
- 82596
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 glider pilot did not take timely action to locate a safe outlanding area after entering an area where atmospheric lift was not sufficient to maintain soaring flight.
Findings · 4
NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.
Sequence of events
The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.
Analysis
While participating in a soaring contest, the glider pilot entered an area where atmospheric lift was not sufficient. Instead of reversing his course toward better outlanding fields, he continued with the contest course and task. He ultimately ended up in a location where he was forced to attempt an off-airport landing on unsuitable terrain. Immediately upon touchdown, the glider encountered several small boulders that were hidden in the grass, and the left wing tip became snagged in some tall grass, resulting in a loss of directional control. During the resulting ground loop, both wings sustained substantial damage and the empennage tail boom separated from the main part of the fuselage.
Factual narrative
While participating in a soaring contest, the glider pilot entered an area where atmospheric lift was not sufficient. Instead of jettisoning the glider's water ballast to reduce its sink rate and reversing his course toward better outlanding fields, he continued on with the contest course and task. He therefore ultimately ended up in a location where he was forced to attempt an off-airport landing on unsuitable terrain. Immediately upon touchdown, the glider encountered several small boulders that were hidden in the grass, and the left wing tip became snagged in some tall grass, resulting in a loss of directional control. During the resulting ground loop, both wings sustained substantial damage and the empennage tail boom separated from the main part of the fuselage.
Aircraft
- Registration
- N797V
- Reported as
- Schleicher ASW-27
- Category
- Glider
- Serial number
- 27145
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Operator
- Cumiford James H Jr
- Registered owner
- Cumiford James H Jr
- Airworthiness certificate
- Standard, Normal
- Departed
- KLGU · Logan, UT
- Destination
- KLGU · Logan, UT
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
- 56
- Injuries
- None
- Certificate
- Private
- Seat
- Single
- Flight hours
- 3,018 total · 892 in this make and model
Weather
- Conditions
- Visual (VMC) · Day
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 90 °F
Docket · 1
The files NTSB released with the investigation on January 17, 2012, on NTSB’s docket system: statements, records, photos and specialists’ reports. 709 KB in all.