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NTSB Report
December 27, 2017 · Aeropro Cz Eurofox NO Series · N3945A
Upper Lake, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
December 27, 2017
Injury Outcomes
No injuries (2 uninjured)
Location
Upper Lake, CA
Aircraft
Aeropro Cz Eurofox NO Series (2005)
Tail Number
N3945A
Injuries
None
Aircraft Damage
Substantial
NTSB Number
GAA18CA096
The pilot of the airplane reported that, during the approach to land, he applied full flaps, but "unfortunately, [he] added power too late and too slowly." Subsequently, "the bottom fell out," and the airplane aerodynamically stalled. The airplane landed hard, the left and right wings impacted the ground, and the airplane skidded to a stop. The airplane sustained substantial damage to the fuselage and right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
NTSB Probable Cause
The pilot’s failure to maintain adequate airspeed and his exceedance of the airplane’s critical angle of attack during the approach to land, which resulted in an aerodynamic stall.
Full Narrative
The pilot of the airplane reported that, during the approach to land, he applied full flaps, but "unfortunately, [he] added power too late and too slowly". Subsequently, "the bottom fell out" and the airplane aerodynamically stalled. The airplane landed hard, the left and right wing impacted the ground, and the airplane skidded to a stop. The airplane sustained substantial damage to the fuselage and right wing. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
Flight
Event TypeAccident
Event Time15:30 PST
Nearest AirportGravelly Valley (1nm SSW)
Runway01
Runway Length4050 ft
Runway Width200 ft
Flight Plan FiledNone
Flight Plan ActivatedNo
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAeropro Cz Eurofox NO Series
Tail NumberN3945A
Aircraft CategoryAir
DamageSubstantial
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsRotax · ULS · Reciprocating · 100
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 67 · Sprt · None
Conditions
ConditionsVMC
LightDaylight
WindCalm
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 45 C
Altimeter30.25 inHg
Observation Time22:56
Weather SourceWFAC