GRUMMAN/SCHWEIZER G-164D near Richvale, CA — 2024-06-08

Probable cause

The pilot’s decision to take off with a tailwind and their failure to maintain clearance from terrain.

NTSB narrative

The pilot of the tailwheel-equipped airplane reported that after the airplane was loaded with 2,400 – 2,500 lbs of rice seed, he exited the loading area and initiated takeoff on a 2,200-foot long runway. During takeoff roll, about mid-field, the tail lifted up as he expected, and engine instruments showed expected performance. However, acceleration seemed diminished, and he increased power “to the stops.” Subsequently, the airplane struck an embankment at the end of the runway, which resulted in substantial damage to the fuselage and bottom left wing leading edge. At the time of the accident, the pilot was departing runway 34, and wind was from 170° at 5 knots. The pilot reported that there were no preaccident mechanical malfunctions or failures that would have precluded normal operation.

NTSB coding

• Collision during takeoff/land · Takeoff

Evidence available

• Photos
• 2 docket documents

Docket documents2

• PILOT/OPERATOR AIRCRAFT ACCIDENT REPORT, NTSB FORM 6120.1form
• PHOTOSphotos

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