better training of personnel who must keep the ships
combat ready. The need for training and the problem of
frequent turnover of trained personnel call for some kind
of system that can be used to keep things going smoothly
during the confusion. The EOSS was developed for that
EOSS is a set of manuals designed to eliminate
problems due to operator error during the alignment of
piping systems and the starting and stopping of
machinery. It involves the participation of all personnel
from the department head to the fireman on watch.
EOSS consists of a set of detailed written procedures,
using charts, instructions, and diagrams. These aids are
developed for safe operation and casualty control of a
specific ships engineering plant and configuration.
EOSS improves the operational readiness of the ships
engineering plant by providing positive control of the
plant. This, in turn, reduces operational casualties and
extends machinery life.
EOSS is divided into two subsystems: (1)
engineering operational procedures (EOPs) and (2)
engineering operational casualty control (EOCC).
EOPs are prepared specifically for each level of
operation: plant supervision (level l), space supervision
(level 2), and component/system operator (level 3). The
materials for each level or stage of operation contain
only the information necessary at that level. All
materials are interrelated. They must be used together to
maintain the proper relationship and to ensure positive
control and sequencing of operational events within the
plant. Ships that do not have EOSS use operating
instructions and a casualty control manual for plant
CASUALTY CONTROL (EOCC)
This subsystem of EOSS enables plant and space
supervisors to RECOGNIZE the symptoms of a possible
casualty. They can then CONTROL the casualty to
prevent possible damage to machinery, and RESTORE
plant operation to normal. The documents of the EOCC
subsystem contain procedures and information that
describe symptoms, causes, and actions to be taken in
the most common engineering plant casualties.
ENGINEERING CASUALTY CONTROL
The best form of casualty control is prevention. If
you do not let a casualty happen, you will not have to
Preventive maintenance is one of the principal
factors of casualty control. Preventive inspections, tests,
and maintenance are vital to casualty control. These
actions minimize casualties caused by MATERIAL
failures. Continuous detailed inspections are necessary
to discover worn or partly damaged parts, which may
fail at a critical time. These inspections eliminate
maladjustments, improper lubrication, corrosion,
erosion, and other enemies that could cause early failure
of a vital piece of machinery.
The inspections, tests, and maintenance called for
in the 3-M systems must be performed conscientiously
since they are based on the known requirements of
Still, casualties do happen. When they do, the
success of the mission, the safety of your ship, and the
lives of your shipmates may depend on your ability to
handle the situation. That means continuous training and
frequent refresher drills to be sure you can do your part,
and do it well.
Engineering casualty control is used to prevent,
minimize, and correct the effects of operational and
battle casualties. These casualties will be on engineering
space machinery, related machinery outside of
engineering spaces, and the piping installations
associated with the various pieces of machinery. The
mission of engineering department personnel is to
maintain all engineering services in a state of maximum
reliability under all conditions. If you cannot provide
these services, the ship may not be able to fight.
The use of EOCC procedures was discussed at the
beginning of this chapter. These procedures are prepared
and approved for your ship.
Steps involved in handling engineering casualties
can be divided into three general phases:
1. Immediate action to prevent further damage.
2. Supplementary action to stabilize the plant
3. Restoration action to restore equipment to
operation after a casualty. Where equipment damage has
occurred, repairs may be necessary to restore
machinery, plants, or systems to their original condition.
Communication of accurate information is one of
the major problems in casualty control. Be sure you