LAX85LA305

NTSB accident investigation · Hiller UH-12E · Gonzales, CA · July 5, 1985

Accident · No injuriesLimited investigationFinal report
Date
July 5, 1985, 07:15 local (14:15 UTC)
Place
Gonzales, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N161HAHiller UH-12E
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850705029529A
Case key
24763

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

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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.

Loss of engine power(partial) - mech failure/malfManeuvering - aerial application
Fuel system,line fitting - unapproved partCause
Maintenance,replacement - improperOther maintenance personnelCause
Fuel system,line fitting - corrodedCause
Fuel system,line fitting - deterioratedCause
Fuel system,line fitting - failure,totalFactor
Forced landingDescent
On ground/water encounter with terrain/waterLanding - flare/touchdown
Terrain condition - none suitableFactor
Airport facilities,runway/landing area condition - open field
Airport facilities,runway/landing area condition - rough/unevenFactor
Airport facilities,runway/landing area condition - softFactor
Roll overLanding - flare/touchdown

Analysis

While cruising during an ag flight the acft's eng began losing pwr. At the time the acft was about 50 ft AGL & was travelling at 50 mph. The plt made a forced ldg onto a nearby plowed fld. Upon touchdown the rt skid dug into a furrow & the acft rolled over. Exam of the acft revealed that an air leak had developed at the fuel feed line inlet to the electric boost pump. The connector inlet bushing being used was not found to be of 'acft quality,' & its condition was observed to be rusted, putted & rough. The individual(s) responsible for originally placing the unauthorized part in service could not be determined.

Aircraft

Registration
N161HA
Reported as
Hiller UH-12E
Category
Helicopter
Serial number
HA-3061
Engine
Allison 250-C20, 305 horsepower, turbo shaft
Damage
Substantial damage
Flight
Aerial application · Part 137
Operator
Verticare
Registered owner
Coalinga Commuter & Cargo
Airworthiness certificate
Special, Restricted (Special)
Departed
Gonzales, CA
Destination
Salinas, 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
61
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Center
Flight hours
15,000 total · 2,000 in this make and model · 75 in the last 90 days · 25 in the last 30 days · 2 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 3 knots
Visibility
25 statute miles
Lowest ceiling
None
Temperature
61 °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 N161HA · 4

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