NTSB Identification: FTW86LA169.
The docket is stored on NTSB microfiche number 31374.
Accident occurred Friday, September 19, 1986 in EUGENE ISLAND
Aircraft: BELL 206B, registration: N16978
Injuries: 1 Serious,1 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.

COMMERCIAL HELICOPTER PILOT ENGAGED IN OFF-SHORE FLIGHT OPERATIONS FAILED TO REMOVE AIRCRAFT TIE-DOWN LINES PRIOR TO TAKE OFF FROM THE OIL RIG. PILOT LOST CONTROL OF AIRCRAFT IN A HOVER CAUSING THE AIRCRAFT TO COLLIDE WITH A METAL SAFETY NET AND, SUBSEQUENTLY, THE BOOM OF A CRANE. TAIL SECTION OF AIRCRAFT SEPARATED AND LODGED IN CRANE BOOM. AIRCRAFT IMPACTED THE WATER INVERTED AND SANK. AIRCRAFT WAS NOT RECOVERED. PILOT SUFFERED MINOR INJURIES. HOWEVER, ONE COMPANY EMPLOYEE LOCATED IN NEAR-BY BUNKHOUSE SUFFERED SERIOUS INJURIES TO BOTH LEGS.

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

AIRCRAFT PREFLIGHT..INADEQUATE..PILOT IN COMMAND

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

TIE DOWN..INADVERTENT..PILOT IN COMMAND

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

PROCEDURES/DIRECTIVES..DISREGARDED..PILOT IN COMMAND

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

CHECKLIST..NOT USED..PILOT IN COMMAND


Contributing Factors

DESCENT..UNCONTROLLED..PILOT IN COMMAND

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