LAX85FA126

NTSB accident investigation · Aerospatiale SA316B · Galt, CA · January 30, 1985

Accident · Serious injuriesField investigationFinal report
Date
January 30, 1985, 07:12 local (15:12 UTC)
Place
Galt, CA
Injuries
1 serious, 2 uninjured
Damage
Substantial damage
Phase of flight
Enroute
Aircraft
N67081Aerospatiale SA316B
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19850130001409A
Case key
24464

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.

Airframe/component/system failure/malfunctionCruise - normal
Rotorcraft flight control,tail rotor control - loss,total
Rotorcraft flight control,tail rotor control - undeterminedCause
Forced landingDescent - emergency
Roll overLanding - flare/touchdown

Analysis

While in cruise the plt lost tail rotor control and elected to execute an emergency landing in an open field. The tail rotor gearbox was found 45 ft from the main wreckage. The tail rotor guard was found 60 ft from the main wreckage. It did not exhibit any ground impact damage, but did display 3 tail rotor blade marks. The right ear tail rotor gearbox attachment bolt sheared in an overload manner. The left ear tail rotor gearbox attachment bolt was missing and the ear showed compression damage at the bottom aft edge of its inside plate. There was no other evidence of a preimpactfailure or malfunction.

Aircraft

Registration
N67081
Reported as
Aerospatiale SA316B
Category
Helicopter
Serial number
2184
Airframe hours
2,054
Engine
Turbomeca ARTOUSTE IIIB, 858 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 135
Registered owner
Rocky Mountain Helicopters Inc
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · January 29, 1985 · 0 hours before
Departed
Sacramento, 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
39
Certificate
Commercial
Airplane ratings
Single-engine land, Multi-engine land
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
482 in this make and model

Weather

Conditions
Visual (VMC) · Day
Wind
330° at 8 knots
Visibility
40 statute miles
Lowest ceiling
None
Temperature
36 °F, dew point 34 °F
Altimeter
30.00 inHg
Observed at
SAC, 16 nm away

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 N67081 · 1

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