FTW86LRA06

NTSB accident investigation · Aerospatiale AS-350D · Freeport, TX · January 24, 1986

Accident · Minor injuriesFinal report
Date
January 24, 1986, 14:30 local (20:30 UTC)
Place
Freeport, TX
Injuries
1 minor, 1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N3599XAerospatiale AS-350D
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19860124001249A
Case key
22126

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/malfManeuvering
Turbine assembly,turbine blade - failure,totalCause
Forced landingDescent - uncontrolled
Autorotation - performedPilot in command
Hard landingLanding - flare/touchdown
Flare - improperPilot in commandCause
Roll overLanding - flare/touchdown

Analysis

While on a maintenance test flt the helicopter experienced an eng failure. An autorotation was entered and a hard landing occurred which resulted in a roll over. The flt originated at oyster creek heliport and returned twice for maintenance adjustments and was turning for home a third time when the eng failed. Post accident inspection revealed that a gas producer turbine wheel blade had separated.

Aircraft

Registration
N3599X
Reported as
Aerospatiale AS-350D
Category
Helicopter
Serial number
1191
Airframe hours
5,130
Engine
Lycoming LTS101-600A2, 590 horsepower, turbo shaft
Damage
Substantial damage
Flight
Part 91
Operator
Petroleum Helicopters, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · January 6, 1986 · 38 hours before
Departed
Freeport, TX

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
38
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane, Helicopter
Medical
Class 2, Valid Medical--w/ waivers/lim
Seat
Left
Flight hours
5,499 total · 112 in this make and model · 4,751 as pilot in command · 120 in the last 90 days · 40 in the last 30 days · 4 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
190° at 8 knots
Visibility
7 statute miles
Temperature
70 °F, dew point 63 °F
Altimeter
30.00 inHg

FAA reports on this event · 1

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