Mobil Heliport Airport
Aircraft Accident/Incident Report

Morgan City, Louisiana 70510
Sunday, June 14, 1992 7:00 CDT

NTSB Narrative Summary Released at Completion of Accident

THE SECOND PILOT WAS FLYING THE HELICOPTER TO AN OFF SHORE OIL PLATFORM WHEN THE OIL COOLER DRIVE SHAFT SHEARED ON THE NUMBER TWO ENGINE. THE FLIGHT CREW PERFORMED THE EMERGENCY PROCEDURE FOR THE FAILURE AND INITIATED A PRECAUTIONARY RUN ON LANDING AT THEIR DEPARTURE LOCATION. THE SECOND PILOT LOST CONTROL OF THE HELICOPTER AS HE TAXIED ONTO A HELIPAD WHEN THE RIGHT MAIN LANDING GEAR CAUGHT THE EDGE RESULTING IN ITS COLLAPSE. THE TAILROTOR AND VERTICAL FIN STRUCK A TREE AND A FENCE BEFORE THE HELICOPTER LANDED HARD ONTO THE HELIPAD.

NTSB Probable Cause Narrative

THE SECOND PILOT'S FAILURE TO MAINTAIN AIRCRAFT CONTROL.

Event Information

Type of Event Accident
Event Date 6/14/1992
Event Day of the Week Sunday
Time of Event 700
Event Time Zone Central Daylight Time
Event City MORGAN CITY
Event State LOUISIANA
Event Country --
Zipcode of the event site 70510
Event Date Year 1992
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport MOBIL HELIPORT
Event Location Nearest Airport ID 5LA2
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation 10
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 655 Central Daylight Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID PTN
Elevation of weather observation facility 10
Distance of event from weather observation facility (units?) 2
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3900
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) 23
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 6
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 2210
NTSB Notification Source --
NTSB Notification Date Jun 14 1992 12:00AM
NTSB Notification Time 1015
Fiche Number and/or location -used to find docket information 46982
Date of most recent change to record Dec 11 2000 2:59PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2620
NTSB Number FTW92LA155
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 Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name SIKORSKY
Aircraft Model S-76A
Aircraft Series Identifier S-76A
Aircraft Serial Number 760211
Certified Max Gross Weight 10500
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 14
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 13 1992 12:00AM
Airframe hours since last inspection 1
Airframe Hours 10192
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name MOBIL OIL EXPLOR PROD SE INC
Aircraft Owner Street Address 1200 YOUNGS RD
Aircraft Owner City MORGAN CITY
Aircraft Owner State LA
Aircraft Owner Country
Aircraft Owner Zipcode 70380
Operator is an individual? --
Operator Name MOBIL OIL EXPLOR PROD SE INC
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 1200 YOUNGS RD
Operator City MORGAN CITY
Operator State LA
Operator Country
Operator Zip code 70380
Operator Code
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) Executive/Corporate
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 650
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code NONE
Destination City SHIP SHOAL 72
Destination State GM
Destination Country
Specific Phase of Flight Taxi
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 7
Runway Length 700
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --