LAX82DA306

NTSB accident investigation · Hiller UH-12E · Chandler, AZ · August 20, 1982

Accident · No injuriesFinal report
Date
August 20, 1982, 03:07 local (10:07 UTC)
Place
Chandler, AZ
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N4026SHiller UH-12E
Weather
Visual (VMC) · Night/dark
Status
Completed · report August 20, 1983
Report
Approved by Office Director
FAA report
19820820041759A
Case key
70189

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.

Vortex turbulence encounteredManeuvering - aerial application
Light condition - dark nightFactor
Unsafe/hazardous condition - inadvertentPilot in commandCause
In flight collision with terrain/waterManeuvering - aerial application
Main gear collapsedManeuvering - aerial application

Analysis

The pilot was spraying liquid chemicals at night. The pilot flew into his own wake turbulence and lost control and collided with the ground. Control was regained to make an upright landing in the field. Skids were torn off the aircraft.

Aircraft

Registration
N4026S
Reported as
Hiller UH-12E
Category
Helicopter
Serial number
5055
Airframe hours
1,400
Engine
Lycoming VO-540, 305 horsepower, reciprocating
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
San Tan Dusters
Registered owner
Duval Co. Ranch Co. Incorporat
Departed
Chandler, AZ
Destination
Chandler, AZ

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
54
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Medical
Class 2, Valid Medical--w/ waivers/lim
Flight hours
13,150 total · 2,500 in this make and model

Weather

Conditions
Visual (VMC) · Night/dark
Wind
45° at 2 knots
Temperature
194 °F

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 N4026S · 2

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