- Date
- May 13, 2007, 15:30 local (19:30 UTC)
- Place
- Franconia, NH
- Injuries
- 2 minor
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N39783Burkhart Grob Flugzeugbau G103
- Weather
- Visual (VMC) · Day
- Status
- Completed · report June 27, 2007
- Report
- Approved by Office Director
- Parties
- FSDO/FAA
- FAA report
- 20070513014879A
- Case key
- 65796
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 failure to obtain the proper touchdown point. A factor in the accident was an encounter with an updraft while on approach.
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.
Analysis
After about 2.5 hours of soaring in the Burkhart Grob Flugzeugbau G-103 glider, the pilot returned to the airport and entered the traffic pattern at 1,200 feet with a "small amount" of spoilers deployed. He turned onto the downwind leg at 800 feet, and used "more spoilers" to descend to 500 feet. He then turned onto the base leg, and at 300 feet and 60 knots airspeed, he turned onto the final leg of the approach and aligned the glider with the runway. He immediately felt the glider had entered rising air, so he performed a full slip with the spoilers deployed; however, the glider did not descend significantly. The pilot waited for the glider to exit the rising air mass, and it continued to descend moderately until about mid-field, when it descended rapidly. The glider touched down about 3/4 down the runway and bounced back into the air. Due to a pile of debris at the end of the runway, the pilot elected to close the spoilers, overfly the debris, and land the glider in the treetops ahead at a slow speed. Before he could accomplish his plan, a crosswind blew the glider towards a tree. The left wing contacted the tree, and the glider subsequently impacted the ground.
Factual narrative
According to the pilot, after about 2.5 hours of soaring in the Burkhart Grob Flugzeugbau G-103 glider, he returned to the airport and entered the traffic pattern at 1,200 feet with a "small amount" of spoilers deployed. He turned onto the downwind leg at 800 feet, and used "more spoilers" to descend to 500 feet. He then turned onto the base leg, and at 300 feet and 60 knots airspeed, he turned onto the final leg of the approach and aligned the glider with the runway. He immediately felt the glider had entered rising air, so he performed a full slip with the spoilers deployed; however, the glider did not descend significantly. Due to the proximity of the surrounding trees to the glider, the pilot felt that he could not successfully perform an s-turn or a 360-degree turn to lose energy, and instead felt that he should wait for the glider to exit the rising air mass. The glider continued to descend moderately until about mid-field, when it descended rapidly. The glider touched down about 3/4 down the runway and bounced back into the air. Due to a pile of debris at the end of the runway, the pilot elected to close the spoilers, overfly the debris, and land the glider in the treetops ahead at a slow speed. Before he could accomplish his plan, a crosswind blew the glider towards a tree. The left wing contacted the tree, and the glider subsequently impacted the ground.
Aircraft
- Registration
- N39783
- Reported as
- Burkhart Grob Flugzeugbau G103
- Category
- Glider
- Serial number
- 3805
- Airframe hours
- 3,070
- Engine
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Last inspection
- Annual · July 1, 2006
- Departed
- 1B5 · Franconia, NH
- Destination
- 1B5
- Airport
- 1B5 · Franconia Airport, runway 36, 2,305 × 150 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
- 44
- Injuries
- Minor
- Certificate
- Private
- Seat
- Front
- Flight hours
- 122 total · 9 in this make and model · 62 as pilot in command · 5 in the last 90 days · 5 in the last 30 days · 2 in the last 24 hours
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 340° at 10 knots, gusting 16
- Temperature
- 55 °F, dew point 21 °F
- Observed at
- HIE, 14 nm away
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.