After a fault was detected, the operators need to identify the source, namely, the particular component that failed.
The problem
is that sometimes the
operators cannot identify the failed component based on
the attributes of the
alarm, because they were not trained to recognize
components by associated
alarm s, or because they did not experience the
alarm
often enough to remember the particular
system behavior. This is especially important to enable safe behavior
under stress.
Operators should be trained to recognize the
alarm
situation and to identify the source of the
alarm s.
The pilots at the AF 447 accidents were not trained to recognize the exceptional maneuver by the captain in charge.
The TMI team in the control room was not trained to resolve conflicting information obtained when the PORV was stuck open.
To enable training the
operation in exceptional condition, the
system should be equipped with mean to bypass the sensors, and to simulate their behavior in exceptional conditions.
Updated on 05 Apr 2016.