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NTSB Report
July 16, 2011 · Rolladen Schneider Ohg LS-3-17 · N84AM
Adelanto, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
July 16, 2011
Injury Outcomes
1 injury (1 serious injury)
Location
Adelanto, CA
Aircraft
Rolladen Schneider Ohg LS-3-17
Tail Number
N84AM
Injuries
Serious
Aircraft Damage
Substantial
NTSB Number
WPR11CA338
The pilot reported that he turned from the base leg to final approach at about 400 feet with full flaps and spoilers extended. On final approach about 100 feet above the ground, he decided to change the flap setting from 20 degrees to 10 degrees as there was a crosswind. He said that as he tried to move the flap handle, the handle slipped from his hand and instantly changed the flaps to 10 degrees, which resulted in the glider losing lift and nosed down. He pulled back on the controls, but the glider stalled and collided with the ground resulting in substantial damage. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or the engine that would have precluded normal operation.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Pitch control-Incorrect use/operation - C
Full Narrative
The pilot reported that he was turning the glider from base to final at about 400 feet with full flaps and spoilers extended. On final about 100 feet above the ground, the pilot decided to change his flap setting from 20 degrees to 10 degrees as there was a cross wind. When he went to move the flap handle, the handle slipped from his hand and instantly changed the flaps to 10 degrees, which caused the glider to lose lift and nose down. The pilot then pulled back on the controls which caused the glider to stall and collide with the ground. The glider was substantially damaged and the pilot was seriously injured during the accident. The pilot reported no pre-impact mechanical malfunctions of failures with the airframe or the engine that would have precluded normal operation.
Flight
Event TypeAccident
Event Time17:00 PDT
Nearest AirportKrey Field Airport (1nm)
Runway07
Runway Length3360 ft
Runway Width100 ft
Flight Plan FiledUnknown
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRolladen Schneider Ohg LS-3-17
Tail NumberN84AM
Aircraft CategoryGli
DamageSubstantial
Operating RulePart 91
Engines0
Seats1
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 59 · Third Class · Serious
Conditions
ConditionsVMC
LightDaylight
Wind130° @ 10 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point0 C
Altimeter0
Weather SourcePILO