NONE · Grumman G21 · 2004-04-05 · Unalaska, AK, USA
Event
NTSB number
ANC04LA038
Event ID
20040409X00437
Type
Accident
Date
2004-04-05
Location
Unalaska, AK, USA
Coordinates
53.900276, -166.543609
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
9
Total aboard
9
Aircraft
Make
Grumman
Model
G21
Registration
N22932
FAR Part
135
Engines
2
Damage
SUBS
Conditions
Light
DAYL
Weather
VMC
Probable cause
The inadvertent ground loop/swerve by the second pilot during the landing roll, and the first (check) pilot's inadequate supervision of the second pilot, which resulted in a loss of control and substantial damage to the airplane. Factors associated with the accident are the second pilot's improper upgrade/transition training by the company check airman, the second pilot's lack of experience in the accident type airplane, the operator's lack of surveillance of the training process, and a crosswind.