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NTSB Report
August 5, 2009 · Eiriavion Oy PIK 20B · N77MA
Marana, AZ
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
August 5, 2009
Injury Outcomes
No injuries (1 uninjured)
Location
Marana, AZ
Aircraft
Eiriavion Oy PIK 20B
Tail Number
N77MA
Operator
Umberger Martin S
Injuries
None
Aircraft Damage
Substantial
NTSB Number
WPR09CA389
While returning from a cross-country glider flight, the pilot reported losing lift and encountering downdrafts along his route. He elected to make an off-airport landing. During the landing approach, the glider impacted the top of a tree at approximately 12 feet above the ground; subsequently, it impacted terrain on the chin of its' fuselage and came to rest in an upright position. The force of the impact resulted in the separation of both wings. Examination of the glider revealed that the fuselage, canopy, and wings were structurally damaged.
NTSB Probable Cause
Aircraft-Aircraft oper/perf/capability-Performance/control parameters-Altitude-Attain/maintain not possible - C
Full Narrative
While returning from a cross-country glider flight, the pilot reported losing lift and encountering downdrafts along his route. He elected to make an off-airport landing. During the landing approach, the glider impacted the top of a tree at approximately 12 feet above the ground; subsequently, it impacted terrain on the chin of its' fuselage and came to rest in an upright position. The force of the impact resulted in the separation of both wings. Examination of the glider revealed that the fuselage, canopy, and wings were structurally damaged.
Flight
Event TypeAccident
Event Time15:25 MST
Nearest AirportEl Tiro Gliderport (3nm)
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftEiriavion Oy PIK 20B
Tail NumberN77MA
Aircraft CategoryGli
DamageSubstantial
OperatorUmberger Martin S
Operating RulePart 91
Engines0
Seats1
People & Injuries
Injury SummaryNo injuries (1 uninjured)
Fatal0
Serious0
Minor0
Uninjured1
Total1
Crew 1Age 59 · None · None
Conditions
ConditionsVMC
LightDaylight
Wind4 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point11 C / 43 C
Altimeter29.88 inHg
Observation Time22:53
Weather SourceWFAC