FTW83IA131

NTSB incident investigation · Aerospatiale AS-350D · E. Cameron · March 1, 1983

Incident · No injuriesIncident investigationFinal report
Date
March 1, 1983, 10:00 local (16:00 UTC)
Place
E. Cameron
Injuries
4 uninjured
Damage
Minor damage
Phase of flight
Approach
Aircraft
N3593DAerospatiale AS-350D
Weather
Visual (VMC) · Day
Status
Completed
Report
Approved by Office Director
FAA report
19830301061079I
Case key
20776

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

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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 powerApproach - vfr pattern - final approach
Reason for occurrence undeterminedCause
Forced landingLanding - flare/touchdown
Autorotation - performedPilot in commandFactor
Near collision between aircraftLanding - flare/touchdown
Electrical system,electric wiring - chafedCause
Electrical system,electric wiring - openCause
Landing gear,float assembly - inoperativeCause

Analysis

During an approach to an oil drilling rig platform, the engine decelerated as the pilot started to all power. With the acft below the landing area, he maneuvered to miss the platform & initiated an autorotative landing. He made a mayday call & tried to electrically deploy the emergency floats; however, the right float failed to inflate & there was insufficient time for manual deployment. Immediately on touchdown, the helicopter rolled over & began to fill with water. Reportedly, there was only minor damage from water immersion. No preimpact discrepancies were found that would have caused the power loss. The wires to the right float (for electrical deployment) were worn in two at a center hex head screw. A fleet inspection of 37 acft revealed that 60% were worn thru in the same area.

Aircraft

Registration
N3593D
Reported as
Aerospatiale AS-350D
Category
Helicopter
Serial number
1060
Airframe hours
3,486
Engine
Lycoming LTS-101, 531 horsepower, turbo shaft
Damage
Minor damage
Flight
Part 135
Registered owner
Petroleum Helicopters, Inc.
Airworthiness certificate
Standard, Normal
Last inspection
AAIP · February 18, 1983 · 38 hours before
Departed
E. Cameron 33a, GM
Destination
E. Cameron 42b, GM
Flight plan
Company VFR

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Pilot
Age
24
Certificate
Commercial
Airplane ratings
Single-engine land
Instrument ratings
Helicopter
Medical
Class 2, Valid Medical--no waivers/lim.
Seat
Right
Flight hours
2,286 total · 393 in this make and model · 2,014 as pilot in command · 122 in the last 90 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
120° at 10 knots
Visibility
6 statute miles
Lowest ceiling
None
Temperature
59 °F, dew point 55 °F
Altimeter
30.00 inHg
Observed at
TR4, 7 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.