Accident Investigation
Sheet1
| KEY |
&L&"Arial,Bold"&14FAULT TREE CHART - UNIT VI
Bob slips in water and breaks leg
No "wet floor" warning
Water on floor
Leak in pipe
Water not cleaned up
Sam went home without cleaning up the spill
OR
AND
Basic Event
CAUSAL
FACTOR
No one on day shift aware of spill
Repair request not submiited
Resources not available
Sam chooses to not place warning sign
Warning sign not available
Mary calls in to say she will be late
Tom calls in to say he will be late
Messages are not passed to another supervisor.
Messages are not passed to another supervisor.
Top Event
Sheet2
| LOGIC GATES and CONNECTORS used in MAKING a FAULT TREE |
AND
OR
MAIN FAULT
or
Intermediate Fault
BASIC EVENTS
or
BASIC CAUSES