218-Navigation and Watch Keeping / 748
N
a
v
i
g
ation and
W
atc
h
Kee
p
in
g
BOS-PRD-07.900502
Version 04. Original date: 01/06/2012. Version date: 31/12/2014. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Head of Operations. Approved by: BOS Head of Operations. Validated by: BOS Quality Representative.
9 / 17
4
.
3
.
6
Hea
v
y
weat
h
e
r
The
Ma
s
te
r
is responsible for documenting his requirements for heavy weather sailing in the
Master’s
Standing Orders
and with the
B
r
id
g
e
W
atc
h
O
ff
ice
rs
ensuring they are followed.
A full risk assessment
shall
be carried out prior to onset of heavy weather to ensure the safety of the vessel
and crew.
Ideally, a vessel
should
“ride” heavy weather on a course and at a speed to maintain heading while limiting
the effects of breaking seas and to prevent damage.
During heavy weather, in addition to other documented safe navigational practices, the
B
r
id
g
e
W
atc
h
O
ff
ice
r
shall
:
x
If prior warning of heavy weather is received (or if a proposed course alternation
shall
cause severe
motion) ensure that all personnel are made aware, cargo
should
be checked to ensure movable
objects are suitably secured and all practical precautions are taken to avoid any damage that may
otherwise occur;
x
Consideration
shall
be given to finding shelter from the seas; a port of refuge
shall
be considered if
the vessel is taking or is likely to take unacceptable punishment;
x
Crew activity on deck or any exposed area
shall
be avoided unless necessary for the safety of
personnel, the vessel or assets;
x
If crewmembers have to go onto the deck or into other exposed areas, the use of lifelines or similar
protection
shall
be considered in addition to floatation devices;
x
The vessel
shall
be maneuvered into a position and at an optimised speed to afford maximum
protection for crew on deck, who
shall
be constantly monitored until safely clear from the deck;
x
If sizeable objects are lost or jettisoned overboard and remain afloat, a security message
shall
be
transmitted and the nearest
C
oa
s
tal
S
tate a
u
t
h
o
r
itie
s
shall
be informed. The
C
ont
r
act
s
Mana
g
e
r
,
O
p
e
r
ation
s
Mana
g
e
r
and any applicable offshore installation
shall
also be informed;
x
If the contents of the lost object are hazardous, a marine pollutant or a danger to navigation, the
appropriate message
shall
be dispatched. The
C
ont
r
act
s
Mana
g
e
r,
O
p
e
r
ation
s
Mana
g
e
r
and any
applicable offshore installation
shall
also be informed;
x
In the event of any damage or other loss, or any other situation developing that is deemed unusually
hazardous with consideration to the prevailing heavy weather conditions. The
Ma
s
te
r
shall
follow the
procedures for incident reporting;
x
The
C
ont
r
act
s
Mana
g
e
r,
O
p
e
r
ation
s
Mana
g
e
r
and any applicable offshore installation
shall
be
informed.
During heavy weather, Enginee Watch Keeping responsibilities are as documented for coastal navigation.
4
.
3
.
7
D
y
na
m
ic
P
o
s
itionin
g
(
DP2
)
W
atc
h
Kee
p
in
g
The bridge
shall
be manned by two
DP
O
p
e
r
ato
rs
whenever the vessel is operating in a DP mode. Both
DP
O
p
e
r
ato
rs
per watch
shall
be qualified
B
r
id
g
e
W
atc
h
O
ff
ice
rs
, trained and experienced in DP operations
and with a sound working knowledge of offshore operations.
One of the
DP
O
p
e
r
ato
rs
shall
be certified and designated by the
S
enio
r DP
O
p
e
r
ato
r
(
Sr
-
DP
O)
and be in
charge of the watch. The second Operator
shall
be the
DP
O
p
e
r
ato
r
(
DP
O)
and
shall
be capable of taking a
watch at the operating console.
The DP console is to be manned at all times when the vessel is operating in the DP mode and the
S
enio
r
DP
O
p
e
r
ato
r
shall
at all time remain on the bridge.
The
DP
O
p
e
r
ato
r
at the console is the active surface co-ordinator of the operation whilst the vessel is in the
DP mode, and as such
shall
remain dedicated to his responsibilities at the DP console.
The
DP
O
p
e
r
ato
r
under no circumstances
shall
take part in the ships routine activities.
To avoid loss of concentration, the two
DP
O
p
e
r
ato
rs
on watch
should
exchange places at the console at
least every two hours and preferably every one hour.
218