2 fatal · MOONEY M20E · 2012-02-26 · San Antonio, TX, USA
Event
NTSB number
CEN12FA170
Event ID
20120226X01048
Type
Accident
Date
2012-02-26
Location
San Antonio, TX, USA
Coordinates
29.321111, -98.459724
Injuries
Highest injury
FATL
Fatal
2
Serious
0
Minor
0
Uninjured
0
Total aboard
2
Aircraft
Make
MOONEY
Model
M20E
Registration
N9224M
FAR Part
091
Engines
1
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The pilot's inadvertent overboost of the turbocharged engine during initial climb, which resulted in detonation and a partial loss of engine power followed by the pilot's failure to maintain airspeed and the instructor's delayed remedial action, which resulted in an aerodynamic stall. Contributing to the accident was the instructor's improper judgment in acting as a pilot with disqualifying medical conditions and while taking impairing medications.