Table 2-4.-Ship Alteration and Repair Package Process
equipment and provides increased reliability, maintain-
In general, an alteration is any change. It can be
major or minor and can affect almost anything about
the ship. It may be any of several types: ship alter-
ation (SHIPALT), boat alteration (BOATALT), ma-
chinery alteration (MACHALT), ordnance alteration
(ORDALT), or alteration equivalent to repair (AER).
An alteration, such as equipment calibration, can be
performed during an availability.
Alterations are managed through the fleet modern-
ization program and may be either military or tech-
Military Alteration: A military alteration results
in a change of a ships operational or military char-
acteristics, qualities, or features. It also increases the
ability of the ship to meet its ROC. The decision to
incorporate a military alteration rests solely with the
Technical Alteration: A technical alteration
is a change that improves the safety of personnel and
ability, and efficiency of installed equipment.
Table 2-5 lists the alteration categories and their
Table 2-5.-Ship Alteration Categories
A field change (FC) is a modification to combat/
weapons systems equipment. It should improve per-