and technicians are qualified for tasks assigned and all
safety equipment is on station before starting changeout.
You can reduce or eliminate wasted of time by
properly coordinating several tasks throughout the
changeout. Simple things such as the proper placement
of the special support equipment (SSE) containers can
eliminate extra walking and moving of components.
The SSE containers should be placed within the reach
of the crane to avoid unnecessary movement of
equipment into the lift area. Crane service must be
controlled and used exclusively for the changeout. The
engine containers should be brought to the site as soon
as possible so they can be opened and ready for
installation when scheduled.
T e a m m e m b e r s m u s t c o o r d i n a t e a m o n g s t
themselves for certain functions, such as the removal
and installation of components and the constant passing
of fixtures down and into the module. Communication
between team members during the changeout process is
One way you can enhance both
teamwork and communications is by the use of portable
POST CHANGEOUT REQUIREMENTS
With the completion of an engine changeout, you
must return the SSE and container to the cognizant
repair (support) facility. The damaged engine is
packaged in a container and is then shipped to the
appropriate NADEP for repairs. The paper work
involved in the changeout is lengthy, but necessary for
careful preparation of SSE
containers and engine containers will ensure they will
reach their final destination with no shipping damage.
Returning the replaced gas generator, power
turbine, and containers requires that the major
components plus the T5.4 and Pt5.4 harnesses and the
speed sensors of that engine be packed within the
containers. The completed log book is also returned
with the container. After everything is secured within
the containers and the desiccant bags have been dried
out/changed, the cover is bolted down and pressurized
with nitrogen for shipment. The ships supply
department is responsible for shipping the engine
containers to the designated NADEP.
When the SSE containers have been completely
inventoried, restacked, and secured, the supply system
is responsible for returning the empty containers to their
place of origin.
The 05X32 office of NAVSEA is
notified of the condition of the containers by the team
leader via the chain of command.
Reports from the team leader require the completion
of the record log book for each component and the
proper closeout of that log before stowage in the engine
containers. All entries should be complete up to the time
of changeout, checked for correctness, and signed off
by the engineer officer. The SSE containers that were
inventoried on arrival are to be inventoried again at
completion for reissue to the next user. The engineer
officer and main propulsion assistant are required by
squadron directives to notify the proper people of any
irregularities at the completion of the changeout. If
lessons were learned because of the changeout, notify
the people concerned.
Any unique or suspect
occurrences could be very valuable sources of
The following section describes some lessons
learned during engine changeouts.
Since the first changeout on the SPRUANCE class
ships, problem areas and past discrepancies during
pierside changeouts have been numerous. Problems
such as location of the equipment and containers at
pierside can delay the job. When equipment or
containers are placed out of the cranes reach, the delay
is costly and frustrating.
Some changeouts have been hampered by crane
service that was not totally dedicated to the job of engine
changeout. Many hours were lost awaiting the crane.
Crane services are needed full time throughout the
changeout. All concerned personnel should realize that
to complete the changeout on time, the crane and
operators services are required the full 36 hours.
Engine lifting is not all that is required of the crane.
Every component of the rail system plus all the lift
fixtures require crane services. The crane will be in
constant use, especially when the personnel basket is
used. Personnel are also required to check the engines
guide rollers in the permanently mounted guide tracks
for freedom of movement.