LAX82DVG26

NTSB accident investigation · Grumman G-164 · Williams, CA · June 7, 1982

Accident · No injuriesFinal report
Date
June 7, 1982, 11:30 local (18:30 UTC)
Place
Williams, CA
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Maneuvering
Aircraft
N641UGrumman G-164
Weather
Visual (VMC) · Day
Status
Completed · report June 7, 1983
Report
Approved by Office Director
FAA report
19820607023989A
Case key
73050

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Sequence of events

NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.

In flight collision with objectManeuvering - aerial application
Light condition - sunglareFactor
Terrain condition - high obstruction(s)Factor
Object - wire,transmissionFactor
Clearance - misjudgedPilot in commandCause
In flight collision with terrain/waterDescent - uncontrolled

Analysis

The pilot was applying a granular herbicide to a rice field with low voltage wires on the west border and high voltage lines located diagonally across the field. During a pass from west to east, he crossed over the low voltage wires and lowered the nose to fly under the high voltage lines. The pilot stated he was partially blinded by sunglare on his goggles and his line of sight was obstructed by the top wing. The plane struck a high voltage wire and crashed in the rice field.

Aircraft

Registration
N641U
Reported as
Grumman G-164
Category
Airplane
Serial number
377
Airframe hours
7,271
Engine
P&W R-1340, 600 horsepower, reciprocating
Damage
Destroyed
Flight
Aerial application · Part 137
Operator
Thayer Avia.
Registered owner
Thayer Avia.
Departed
Williams, CA
Destination
Williams, CA

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
30
Certificate
Commercial
Airplane ratings
Single-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Flight hours
2,775 total · 2,000 in this make and model · 2,725 as pilot in command · 390 in the last 90 days · 10 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
Calm
Visibility
50 statute miles
Temperature
172 °F
Altimeter
29.00 inHg

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N641U · 1

Matched to the same aircraft by N-number and date.