DEN82DA159

NTSB accident investigation · Aerospatiale SA-315B · Afton, WY · August 9, 1982

Accident · No injuriesFinal report
Date
August 9, 1982, 15:30 local (21:30 UTC)
Place
Afton, WY
Injuries
1 uninjured
Damage
Destroyed
Phase of flight
Enroute
Aircraft
N10067Aerospatiale SA-315B
Weather
Visual (VMC) · Day
Status
Completed · report August 9, 1983
Report
Approved by Office Director
Safety recommendations
Yes
FAA report
19820809035279A
Case key
69692

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.

Loss of engine power(total) - mech failure/malfCruise - normal
Compressor assembly - failure,totalCause
Compressor assembly,blade - fatigueCause
Compressor assembly - fire
Forced landingLanding - flare/touchdown

Analysis

En route during a seismic operation a loud screeching, grinding sound was heard. The pilot reported the aircraft seemed to buck. A long flame emitting from the aft end of the aircraft was observed by witnesses. The engine ceased and the aircraft crashed into trees. Engine disassembly revealed substantial internal damage to the aft axial compressor bearing, axial compressor blades and diffuser blades. Two sections of the no.3 stator blade were examined and revealed surface markings indicative of fatigue.

Aircraft

Registration
N10067
Reported as
Aerospatiale SA-315B
Category
Helicopter
Serial number
2276
Airframe hours
5,418
Engine
Turbo-Meca ARTOUSTE IIIB, 562 horsepower, turbo shaft
Damage
Destroyed
Fire
Both
Flight
Part 133
Operator
Blain Sales, Inc.
Registered owner
Blain Sales, Inc.
Departed
Afton, WY
Destination
Afton, WY

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
37
Certificates
Flight instructor, Airline transport
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 1, Valid Medical--no waivers/lim.
Flight hours
6,350 total · 600 in this make and model · 200 in the last 90 days · 5 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Visibility
20 statute miles
Temperature
46 °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 N10067 · 2

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