Burkhart Grob Flugzeugbau G102 CLUB ASTIR IIIB accident near Boulder, CO
On April 1, 2011, a Burkhart Grob Flugzeugbau G102 CLUB ASTIR IIIB (glider) was involved in an accident near Boulder, CO. 1 person died. Damage to the aircraft: substantial.
- Date
- April 1, 2011
- Place
- Boulder, CO
- Aircraft
- Burkhart Grob Flugzeugbau G102 CLUB ASTIR IIIB · Glider
- Injuries
- 1 fatal, 0 serious, 0 minor
- Damage
- Substantial
- Position
- 39.996°N, 105.189°W
- NTSB ID
- 20110403X95455
Official records · CEN11FA259
- Public docket: reports, statements and exhibits from the investigation
NTSB summary
HISTORY OF FLIGHT On April 1, 2011, about 1715 mountain daylight time, a Burkhart Grob Flugzeugbau G102 Club Astir IIIB glider, N633BG, was substantially damaged upon collision with high voltage transmission wires and terrain near Boulder, Colorado. The private glider pilot was fatally injured. The glider was registered to Mile High Youth Gliding Association, Inc., and operated by Mile High Gliding under the provisions of 14 Code of Federal Regulations Part 91 as a personal flight. Visual meteorological conditions prevailed for the flight, which operated without a flight plan. The flight originated from Boulder Municipal Airport (BDU), Boulder Colorado, at 1628. The pilot of the tow plane reported that the glider released from the tow plane at 13,900 feet mean sea level. The tow plane pilot characterized the air conditions as bumpy with updrafts of 1,000 feet per minute in several areas. Several eyewitnesses reported the glider in a spiral turn towards the ground. All witnesses reported seeing a steep bank angle. One witness observed the glider level off momentarily, then pitch nose up and climb, and then pitch nose down and descend. PERSONNEL INFORMATION The pilot, age 46, held a private glider pilot certificate issued on September 24, 2010. A review of the pilot's logbook revealed the pilot had logged 104.4 hours total time, with a majority of the flight time logged in the accident glider. The pilot had previously been diagnosed with diabetes and had actively monitored his blood sugar level. The pilot’s last recorded blood sugar reading was taken on the day of the acciden
Probable cause
The pilot's incapacitation for undetermined reasons, which resulted in a loss of control.
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Browse: Colorado
Source: NTSB aviation accident database (US government, public domain). Findings may be preliminary or later revised by the NTSB. Not a complete global record.
