NTSB Identification: FTW87LA194.
The docket is stored on NTSB microfiche number 33917.
Nonscheduled 14 CFR
Accident occurred Monday, August 10, 1987 in EUGENE ISLAND
Probable Cause Approval Date: 05/27/1988
Aircraft: BELL 206L-1, registration: N5000Y
Injuries: 2 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE ACFT EXPERIENCED A MAIN ROTOR BLADE STRIKE DURING TAKEOFF FROM AN OFFSHORE PLATFORM. THE ROTOR BLADE STRUCK THE UNDERSIDE OF A CABLE RACEWAY ON A DRILLING RIG THAT WAS SITUATED ADJACENT TO THE PLATFORM HELIDECK. THE RACEWAY WAS 9 FEET LATERALLY AND 22 FEET ABOVE THE HELIDECK EDGE. PLT HAD LANDED ON THE HELIDECK WHILE ANOTHER ACFT WAS PARKED ON THE DECK REQUIRING ACCIDENT PLT TO MAKE AN APP TO A HOVER THEN SLIDE SIDEWAYS ACROSS THE PAD AND SET DOWN WITH THE MAIN ROTOR BLADES UNDER LAPPING THE BOTOM OF THE JACK UP DRILLING PLATFORM. AFTER LIFTOFF TO A HOVER, THE PLT WAS ATTEMPTING TO TRANSITION TO FWD FLT WHEN THE ROTOR STRIKE OCCURRED. FOLLOWING THE STRIKE, HE ATTEMPTED TO INFLATE. OPR'S SOP CALLS FOR MINIMUM OF 1/3 ROTOR DISC CLEARANCE FROM ALL OBSTACLES DURING T/O AND LNDG. THIS CLEARANCE COULD NOT BE MAINTAINED WITH ONE ACFT ALREADY PARKED ON THE HELIDECK.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

PROCEDURES/DIRECTIVES..NOT FOLLOWED..PILOT IN COMMAND


Contributing Factors

MISC ROTORCRAFT,EMERGENCY FLOATATION GEAR..FAILURE,TOTAL


Contributing Factors

OBJECT..BUILDING(NONRESIDENTIAL)


Contributing Factors

MISC ROTORCRAFT,EMERGENCY FLOATATION GEAR..UNDETERMINED


Contributing Factors

AIRPORT FACILITIES,RUNWAY/LANDING AREA CONDITION..CONGESTED

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