Aircraft Accident/Incident Report

Gulf-Of-Mexico
Thursday, July 14, 1988 7:25 CDT

NTSB Narrative Summary Released at Completion of Accident

DRG LIFT-OFF FROM AN OIL PLATFORM IN THE GULF OF MEXICO, THE HELICOPTER BGN A SLOW UNCOMMANDED LEFT TURN. THE PLT TRIED TO FLY IT BY LOWERING THE NOSE & INCREASING COLLECTIVE. AFTER 2 TURNS, THE HELICOPTER SETTLED & IMPACTED THE WATER IN A LEFT BANK, NOSE DOWN ATTITUDE. THE AUTO-PLT WAS NOT DISCONNECTED, NOR WERE THE FLOATS INFLATED. NO PREIMPACT MECH FAILURE WAS FOUND. INTERVIEWS REVEALED THE HELICOPTER WAS NOT STABILIZED IN A HOVER BEFORE INITIATING A TAKEOFF. THERE WAS A PREVIOUS WRITE-UP WHICH STATED 'A/C REQUIRES MORE RIGHT PEDAL THAN USUAL IN HOVER AND FORWARD FLIGHT.' IN RESPONSETO THIS WRITE-UP, A MECHANIC HAD ADJUSTED A TUBE WHICH RAN REARWARD FROM THE PEDAL ASSEMBLY TO THE LOWER PORTION OF THE AUTO-PILOT SYSTEM. THE MAINTENANCE MANUAL DESCRIBED THIS TUBE AS BEING ONE OF THE 'SEMI-FIXED' RODS. REFERRING TO THESE RODS, THE MANUAL CAUTIONED, 'THEY ARE ADJUSTED ONCE FOR ALL WHEN THEY ARE FITTED TO THE AIRCRAFT. THEY MUST NOT BE ADJUSTED SUBSEQUENTLY.'

NTSB Probable Cause Narrative

NONE SUBMITTED

Event Information

Type of Event Accident
Event Date 7/14/1988
Event Day of the Week Thursday
Time of Event 725
Event Time Zone Central Daylight Time
Event City GULF-OF-MEXICO
Event State GULF OF MEXICO
Event Country --
Zipcode of the event site 00000
Event Date Year 1988
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
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 0
Weather Briefing Completeness Not pertinent
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) 150
Variable Wind Indicator Unknown
Wind Speed (knots) 10
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 Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None 14
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 2267
NTSB Notification Source --
NTSB Notification Date Jul 14 1988 12:00AM
NTSB Notification Time 830
Fiche Number and/or location -used to find docket information 40079
Date of most recent change to record Dec 13 2000 11:56AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N47307
NTSB Number FTW88FA131
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name AEROSPATIALE
Aircraft Model SA330J
Aircraft Series Identifier SA330J
Aircraft Serial Number 1402
Certified Max Gross Weight 16300
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 17
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Jul 9 1988 12:00AM
Airframe hours since last inspection 5
Airframe Hours 4727
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name TOPSPIN DATA CORP.
Aircraft Owner Street Address 1345 AVENUE OF THE AMERICAS
Aircraft Owner City NEW YORK
Aircraft Owner State NY
Aircraft Owner Country
Aircraft Owner Zipcode 10105
Operator is an individual? --
Operator Name PETROLEUM HELICOPTERS
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 Yes - certificate holder
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 Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger/Cargo
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 725
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code
Destination City EUGENE ISLAND
Destination State OF
Destination Country
Specific Phase of Flight Takeoff
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --