Private Airport
Aircraft Accident/Incident Report

Berwick, Louisiana 70342
Saturday, July 21, 1990 7:40 CDT

NTSB Narrative Summary Released at Completion of Accident

DURING POSITIONING WITHIN A LANDING ZONE THE AIRCRAFT STRUCK TELEPHONE LINES WHILE HOVERING AT ABOUT THREE FEET. THE PILOT SAW THE LINES IMMEDIATELY BEFORE IMPACT, BUT WAS UNABLE TO AVOID THEM. THE MAIN ROTOR BLADES STRUCK AND SEVERED THE LINES WHICH THEN BECAME ENTANGLED WITH ONE TAIL ROTOR BLADE. THE BLADE SUBSEQUENTLY SEPARATED AND THE TAIL ROTOR GEARBOX AND A PORTION OF THE TAIL BOOM CAME OFF THE AIRCRAFT SHORTLY THEREAFTER. THE AIRCRAFT THEN LANDED HARD. THE LANDING ZONE WAS NOT ONE NORMALLY SERVICED BY THE OPERATOR AND THE PILOT HAD NEVER LANDED THERE BEFORE.

NTSB Probable Cause Narrative

PILOT IN COMMAND'S FAILURE TO SEE AND AVOID OBSTACLES IN THE LANDING ZONE. CONTRIBUTING TO THE ACCIDENT WAS THE PILOT'S LACK OF FAMILIARITY WITH THE LANDING ZONE.

Event Information

Type of Event Accident
Event Date 7/21/1990
Event Day of the Week Saturday
Time of Event 740
Event Time Zone Central Daylight Time
Event City BERWICK
Event State LOUISIANA
Event Country --
Zipcode of the event site 70342
Event Date Year 1990
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport PRIVATE
Event Location Nearest Airport ID NONE
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 15
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 2000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 24
Wind Direction (degrees magnetic) 110
Variable Wind Indicator Unknown
Wind Speed (knots) 3
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 806
NTSB Notification Source --
NTSB Notification Date Jul 23 1990 12:00AM
NTSB Notification Time 730
Fiche Number and/or location -used to find docket information 41905
Date of most recent change to record Dec 12 2000 5:09PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N3598F
NTSB Number FTW90LA143
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AEROSPATIALE
Aircraft Model AS-350D
Aircraft Series Identifier AS-350D
Aircraft Serial Number 1132
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 AAIP
Date of Last Inspection Jul 15 1990 12:00AM
Airframe hours since last inspection --
Airframe Hours 8488
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SWIG, BENJAMINE H.
Aircraft Owner Street Address 950 MASON ST.
Aircraft Owner City SAN FRANCISCO
Aircraft Owner State CA
Aircraft Owner Country
Aircraft Owner Zipcode 94106
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 70518
Operator Code PHM
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
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) Positioning
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code NONE
Departure City
Departure State
Departure Country
Departure Time 740
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Taxi
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --