Acadiana Regional Airport
Aircraft Accident/Incident Report

New Iberia, Louisiana 70505
Wednesday, October 4, 1989 14:30 CDT

NTSB Narrative Summary Released at Completion of Accident

DURING THE RECURRENT TRAINING FLIGHT, THE INSTRUCTOR PILOT ANNOUNCED A FORCED LANDING AND REDUCED THE FUEL CONTROL LEVER TO FLIGHT IDLE. THE SECOND PILOT UNDER INSTRUCTION INITIATED AN AUTOROTATION AND EXECUTED THE MANEUVER IN A SATISFACTORY MANNER UNTIL TOUCHDOWN. THE SECOND PILOT FAILED TO LEVEL THE HELICOPTER PRIOR TO THE TOUCHDOWN ON THE SOD, RESULTING IN THE REAR SKIDS CONTACTING THE GROUND FIRMLY. THE MAIN ROTOR SYSTEM FLEXED REARWARD AND A MAIN ROTOR BLADE CONTACTED AND SEVERED THE TAILBOOM.

NTSB Probable Cause Narrative

THE SECOND PILOT'S (UNDER INSTRUCTION) MISJUDGEMENT OF AIRCRAFT ATTITUDE DURING THE LEVEL OFF PHASE OF THE AUTOROTATION

Event Information

Type of Event Accident
Event Date 10/4/1989
Event Day of the Week Wednesday
Time of Event 1430
Event Time Zone Central Daylight Time
Event City NEW IBERIA
Event State LOUISIANA
Event Country --
Zipcode of the event site 70505
Event Date Year 1989
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport ACADIANA REGIONAL
Event Location Nearest Airport ID ARA
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 24
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1430 Central Daylight Time
Direction of event from weather observation facility (degrees) 360
Weather Observation Facility ID ARA
Elevation of weather observation facility 34
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 6
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1930
NTSB Notification Source --
NTSB Notification Date Oct 4 1989 12:00AM
NTSB Notification Time 1620
Fiche Number and/or location -used to find docket information 41060
Date of most recent change to record Dec 13 2000 1:08PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3606Y
NTSB Number FTW90LA003
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AEROSPATIALE
Aircraft Model 350D
Aircraft Series Identifier 350D
Aircraft Serial Number 1236
Certified Max Gross Weight 4300
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 6
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name PETROLEUM HELICOPTERS, INC
Aircraft Owner Street Address P.O. BOX 90808
Aircraft Owner City LAFAYETTE
Aircraft Owner State LA
Aircraft Owner Country
Aircraft Owner Zipcode 70509
Operator is an individual? --
Operator Name PETROLEUM HELICOPTERS, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O.BOX 90808
Operator City LAFAYETTE
Operator State LA
Operator Country
Operator Zip code 70509
Operator Code PHM
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1400
Departure Time Zone CDT
Destination Same as Local Flt crash at destination city
Destination Airport Code ARA
Destination City
Destination State
Destination Country
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 34
Runway Length 8002
Runway Width 200
Sight Seeing flight No
Air Medical Flight No
Medical Flight --