West Cameron, Blk 266 Airport
Aircraft Accident/Incident Report

West Cameron
Wednesday, April 5, 1989 13:27 CDT

NTSB Narrative Summary Released at Completion of Accident

THE HELICOPTER HAD SVRL INFLT ENG DECELERATIONS THAT MAINTENANCE EFFORTS DID NOT ISOLATE. AFTER REPLACING THE ENG FUEL CONTROLLER, A TEST FLT WAS MADE (FROM AN OIL DRILLING PLATFORM). DRG THE FLT, THE ENG SURGED, THEN DECELERATED. THE PLT WAS UNABLE TO REACH THE HELIPAD. HE ELECTED TO LAND ON THE PLATFORM, SHORT OF THE HELIPAD, RATHER THAN ACCEPT SEA CONDS OF 8 FT WAVES. DRG THE LANDING, THE HELICOPTER WAS DAMAGED. A POST-ACDNT EXAM REVEALED FUEL CONTAMINATION HAD OCCURRED. CONTAMINATION HAD BYPASSED FILTERS IN THE FUEL SYS & HAD CLOGGED & COLLAPSED THE ENG FUEL NOZZLE SCREEN. THE AIRFRAME FUEL FILTER CAP BYPASS VLV WAS FND STUCK OPEN IN THE BYPASS MODE. A PIN (CONNECTED TO THE FUEL FILTER CAP IMPENDING BYPASS TEST BUTTON) WAS FND BENT, HOLDING THE BYPASS VLV OPEN. AN OPEN BYPASS VLV SHOULD HAVE ILLUMINATED A RESPECTIVE ANNUNCIATOR LIGHT IN THE COCKPIT; HOWEVER, WHEN CHECKED, THE ANNUNCIATOR LIGHT OPERD ONLY INTERMITTENTLY DUE TO A FAULTYCOMPONENT IN THE SYS. DRG TESTS, THE CLOGGED/COLLAPSED FUEL SCREEN PREVENTED SUFFICIENT FUEL FLOW TO SUSTAIN ENG POWER.

NTSB Probable Cause Narrative

INADEQUATE MAINTENANCE/INSPECTION OF THE AIRCRAFT FUEL SYSTEM BY COMPANY MAINTENANCE PERSONNEL AND FUEL CONTAMINATION, WHICH RESULTED IN A PARTIAL LOSS OF ENGINE POWER. RELATED FACTORS WERE: A BINDING (STUCK) FUEL FILTER CAP BYPASS VALVE AND PARTIAL FAILURE (INTERMITTENT OPERATION) OF THE RESPECTIVE ANNUNCIATOR LIGHT SYSTEM.

Event Information

Type of Event Accident
Event Date 4/5/1989
Event Day of the Week Wednesday
Time of Event 1327
Event Time Zone Central Daylight Time
Event City WEST CAMERON
Event State GULF OF MEXICO
Event Country --
Zipcode of the event site 00000
Event Date Year 1989
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport WEST CAMERON, BLK 266
Event Location Nearest Airport ID WC26
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 100
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 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) 7
Air Temperature at event time (in degrees celsius) 18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 30
Variable Wind Indicator Unknown
Wind Speed (knots) 25
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
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) 1455
NTSB Notification Source --
NTSB Notification Date Apr 5 1989 12:00AM
NTSB Notification Time 1530
Fiche Number and/or location -used to find docket information 39802
Date of most recent change to record Dec 13 2000 12:36PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5004L
NTSB Number FTW89FA075
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 BELL
Aircraft Model 206B
Aircraft Series Identifier 206B
Aircraft Serial Number 2451
Certified Max Gross Weight 3200
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 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Mar 17 1989 12:00AM
Airframe hours since last inspection 42
Airframe Hours 6728
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name NOTLEF, INC
Aircraft Owner Street Address P.O. BOX 767, 3 211 BYERS RD
Aircraft Owner City POT O'CONNOR
Aircraft Owner State TX
Aircraft Owner Country
Aircraft Owner Zipcode 77982
Operator is an individual? --
Operator Name INDUSTRIAL HELICOPTERS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 90210
Operator City LAFAYETTE
Operator State LA
Operator Country
Operator Zip code 70509
Operator Code
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1325
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 Landing
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 --