complementary forms are necessary for local use, make
f. Such other matters as may be specified by
sure that an existing standard form will serve the
Each entry must be a complete statement and must
be written using standard phraseology. The TYCOM's
directives contain other specific requirements
pertaining to the remarks section of Engineering Logs
In operating equipment, care must be taken to
for ships of the type. The engineering officer must
ensure that the equipment is operated within guidelines
ensure compliance with these directives.
Entries in the Engineering Log must be made
Operating records (logs) allow for tracking the
following instructions given in the following
condition of equipment and tracking the number of
hours of operation. These are legal records and must be
maintained as described.
The Log Sheet, NAVSEA 3120/2B
U.S. Navy Regulations, chapter 10
Naval Ship's Technical Manual, chapter 090
The Engineering Log, NAVSEA 3120/2 (fig. 13-1),
and the Log Continuation Sheet, NAVSEA 3120/2, are
used to record important daily events and data pertaining
The original Engineering Log is a legal record. As
to an engineering department and the operation of an
such, it must be prepared neatly and legibly. The
engineering plant. A table is provided in the log for
remarks should be prepared, and must be signed, by
recording the hourly average rpm (to the nearest tenth)
the engineering officer of the watch (EOOW)
of all shafts and the resultant speed in knots. Additional
(underway) or the engineering department duty officer
tables and spaces are provided for recording the
(in port). No erasures are permitted in the log. When
information that is listed below.
a correction is necessary, a single line is drawn through
the original entry so that the entry remains legible. The
1. Name of the ship.
correct entry is then inserted so clarity and legibility are
maintained. Corrections, additions, or changes are
3. Ship's draft and displacement (upon getting
made only by the person required to sign the log for the
under way and anchoring or mooring).
watch. Corrections are initialed on the margin of the
4. Total engine miles steamed for the day and the
distance traveled through water.
The engineering officer verifies the accuracy and
5. Number of days out of dock.
CO approves and signs the log on the last calendar day
6. Amount of fuel, water, and lubricating oil on
of each month and on the date his/her command is
hand, received and expended.
relinquished. The engineering officer should require
7. Location or route of the ship.
the log sheets be submitted in sufficient time to allow
his/her review and signature before noon of the first day
8. Remarks relating to important events. Remarks
following the date of the log sheet(s).
written in the Engineering Log must include the
When the CO (or engineering officer) directs a
change or addition to the Engineering Log, the person
concerned must comply unless he/she believes the
b. Engine combination in use
proposed change or addition to be incorrect In this
c. Major speed changes (such as 1/3, 2/3,
event, the CO (or engineering officer) enters such
standard, and full)
remarks over his signature as deemed appropriate. After
the log has been signed by the CO, no change is
d. All injuries to personnel occurring within the
permitted without the CO's permission or direction.
e. Casualties occurring to material under the
Completed Engineering Log sheets are filed in a
responsibility of the engineering department
post-type binder. Pages of the log are numbered