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NTSB Report
March 8, 2008 · American Champion Acac 7GCAA · N75SE
Tracy, CA
Overview
Report Status
Final with probable cause
Event Type
Accident
Date
March 8, 2008
Injury Outcomes
No injuries (2 uninjured)
Location
Tracy, CA
Aircraft
American Champion Acac 7GCAA
Tail Number
N75SE
Operator
West Valley Flying Club
Injuries
None
Aircraft Damage
Substantial
NTSB Number
SEA08CA088
The certified flight instructor (CFI) was demonstrating a simulated engine failure during takeoff initial climb by executing a 180-degree turn back to the airport. As the CFI was completing the maneuver, he initiated a go-around by applying full power. Subsequently the airplane stalled and impacted the runway in a left-wing low attitude. The CFI stated he was aware of the tailwind condition he would encounter as the airplane completed the 180-degree turn and that upon exiting the airplane, he noted the wind to be considerably higher than he had expected. Examination of the airplane revealed that the left and right wings sustained substantial damage. No anomalies were noted with the engine or flight control systems.
NTSB Probable Cause
The flight instructor's inadequate compensation for the tailwind condition and failure to maintain adequate airspeed that led to an inadvertent stall.
Full Narrative
The certified flight instructor (CFI) was demonstrating a simulated engine failure during takeoff initial climb by executing a 180-degree turn back to the airport. As the CFI was completing the maneuver, he initiated a go-around by applying full power. Subsequently the airplane stalled and impacted the runway in a left wing low attitude. The CFI stated he was aware of the tailwind condition he would encounter as the airplane completed the 180-degree turn and that upon exiting the airplane, he noted the wind to be considerably higher than he had expected. Examination of the airplane revealed that the left and right wings sustained substantial damage. No anomalies were noted with the engine or flight control systems.
Flight
Event TypeAccident
Event Time12:05 PST
Nearest AirportNew Jerusalem Airport (0nm)
Runway12
Runway Length3530 ft
Runway Width60 ft
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftAmerican Champion Acac 7GCAA
Tail NumberN75SE
Aircraft CategoryAir
DamageSubstantial
OperatorWest Valley Flying Club
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-320-B2B · Reciprocating · 160
Seats2
People & Injuries
Injury SummaryNo injuries (2 uninjured)
Fatal0
Serious0
Minor0
Uninjured2
Total2
Crew 1Age 55 · Second Class · None
Crew 2Age 35 · Third Class · None
Conditions
ConditionsVMC
LightDaylight
Wind340° @ 7 kt
Visibility10 sm
CeilingNone
Temperature / Dew Point63 F / 48
Altimeter30.15 inHg
Observation Time19:55
Weather SourceWFAC