462/ Dynamic Positioning Operations / 992
Dy
na
m
ic
P
ositionin
g
O
p
erations
BOS-
P
RD-2
6
.900
6
0
6
T
he
redundancy
concept
of
the ma
j
or
i
ty
of
BO
U
RBON D
P
vesse
l
s
cons
i
sts
of
a
(
s
i
mp
l
e
)
port/starboard
sp
li
t
(
sp
li
t/open
bus
)
wh
il
e ma
i
nta
i
n
i
ng
sp
i
nn
i
ng
reserves
of more
than
5
0%
needed
capac
i
ty
to
k
eep
stat
i
on
after
l
os
i
ng one
s
i
de of
the sp
li
t
(
bus
).
F
or
the mar
i
ne
systems
not
spec
i
f
i
ed
i
n
these
Dynamic Positioning Guidelines
,
the
BB
S
Mana
g
in
g D
irector
and
the
Technical
Sup
erinten
d
ent
shall
recogn
i
ze
that
i
ntegr
i
ty and
success
of
such
redundancy
concept
i
s
dependent upon
the eng
i
nes
,
generators
and
thrusters
perform
i
ng
to
the
i
r
rated
capac
i
ty:
x
Technical
Sup
erinten
d
ent
shall
ma
k
e
sure
that
the
rat
i
ng
sca
l
e
of
eng
i
nes
,
generators
and
thrusters
i
n
D
P
are
cons
i
stent
w
i
th
an
up
to
date
and
ava
il
ab
l
e
e
l
ectr
i
ca
l l
oad
ba
l
ance
(
the
l
oad
ba
l
ance
shall
address
the
approved
thruster
and
power
p
l
ant
conf
i
gurat
i
ons
for
the ma
i
n
des
i
gn
D
P
operat
i
ona
l
modes
,
these
shall
serve
as
a
bas
i
s
to
generate
the
D
P
capab
ili
ty
p
l
ots
used
i
n
D
P
operat
i
ons
).
x
T
he
BB
S
Mana
g
in
g
D
irector
shall
ensure
that
the ma
i
ntenance
ob
j
ect
i
ves
of
the mar
i
ne
systems
not ment
i
oned
i
n
these
Dynamic Positioning Guidelines
a
i
m
to
k
eep
e
q
u
i
pment
performance
w
i
th
i
n
the
stated
des
i
gn parameters
i
n a
ll
poss
i
b
l
e modes
of
operat
i
on
.
Master
must
ensure
that
,
for
a
ll
r
i
s
k-
based
D
P
act
i
v
i
t
i
es
i
n
T
AM/CAM
,
the
cho
i
ce
to
carry
out
p
l
anned
ma
i
ntenance
or
not
,
shall
be made
consc
i
ous
l
y
and
recorded
i
n
the
Act
i
v
i
ty
S
pec
i
f
i
c
O
perat
i
ng
G
u
i
de
li
nes
(
A
SOG
document
)
t
i
t
l
e
b
l
oc
k.
Master
must
ensure
that
i
f
not
addressed
at
the
agreement
of
the
A
SOG,
any
p
l
anned
or
unp
l
anned
ma
i
ntenance
,
reduced
or
non
-
ava
il
ab
ili
ty
of
e
q
u
i
pment
affect
i
ng
the
D
P
stat
i
on
-k
eep
i
ng
capab
ili
ty
shall
tr
i
gger
a
M
O
C
wh
i
ch
shall
i
nc
l
ude
a
new
Pos
i
t
i
on
Ri
s
k
Assessment
(
P
R
A
)
of
ongo
i
ng
and
upcom
i
ng
D
P
operat
i
ons
.
A
l
though
i
t
i
s
genera
ll
y
recogn
i
zed
that
deferr
i
ng
p
l
anned
ma
i
ntenance
due
to
wor
k
act
i
v
i
t
i
es
on
D
P may
i
ncrease
the
potent
i
a
l
for
fa
il
ures
,
Master
must
avo
i
d
ma
ki
ng
D
P
e
q
u
i
pment
unava
il
ab
l
e
for
p
l
anned
ma
i
ntenance
dur
i
ng
D
P operat
i
ons
i
n CAM w
i
th
i
n
a 5
00
m
safety
zone
.
4
.
5
.
5 DP
re
f
its an
d DP
con
v
ersions
T
he
var
i
ety of
D
P
ref
i
ts
ava
il
ab
l
e
i
s
l
arge:
some
D
P
ref
i
ts
can be
underta
k
en as
part of
the p
l
anned
ma
i
ntenance wh
il
e
others
can be as
comp
l
e
x
as
the
or
i
g
i
na
l
system
i
nsta
ll
at
i
on
and
i
ntegrat
i
on dur
i
ng
the
new bu
il
d
process
.
T
he most
common
D
P
ref
i
ts
for
BO
U
RBON
vesse
l
s
are
D
P
contro
l
systems
upgrades
necess
i
tated by
techn
i
ca
l
obso
l
escence
to
i
mprove
the
D
P
system ma
i
nta
i
nab
ili
ty and
reduce
the ma
i
ntenance
cost
or
D
P
convers
i
ons
to
i
ncrease
vesse
l
stat
i
on
-k
eep
i
ng
re
li
ab
ili
ty
i
n
v
i
ew of
future
D
P
contracts
.
I
n
these
Dynamic Positioning Guidelines
:
DP
re
f
its
i
nvo
l
ve
the
rep
l
acement
of
obso
l
ete
e
q
u
i
pment
i
n
part
or
comp
l
ete
as
a
conse
q
uence
of
non
-
ma
i
nta
i
nab
l
e
e
q
u
i
pment
and/or
the
i
ntroduct
i
on
of
new
re
q
u
i
rements
. S
uch
ref
i
ts
i
nvo
l
ve
e
l
ements
of
eng
i
neer
i
ng
,
remova
l
of
o
l
d
e
q
u
i
pment
,
new
i
nsta
ll
at
i
ons
and
comm
i
ss
i
on
i
ng
. T
he
opt
i
ma
l
schedu
l
e
for
a
ref
i
t
upgrade
i
s
under
a P
l
anned Ma
i
ntenance Per
i
od
(
PMP
).
DP
con
v
ersions
are
i
ntended
to
change
a
vesse
l’
s
D
P C
l
ass
notat
i
on
and
norma
ll
y
i
nvo
l
ve
add
i
t
i
on
and/or
rep
l
acement of
D
P
re
l
ated
e
q
u
i
pment
from
severa
l
supp
li
ers
.
As
a
resu
l
t
, D
P
convers
i
ons
re
q
u
i
re a
h
i
gher
degree
of
eng
i
neer
i
ng
compared
to
D
P
ref
i
ts
,
resu
l
t
i
ng
i
n
a
more
s
i
gn
i
f
i
cant
r
i
s
k
dur
i
ng
the
pro
j
ect
. T
he
opt
i
ma
l
schedu
l
e
for a
D
P
convers
i
on
i
s
under
a
PMP
but
D
P
convers
i
ons
can
be
done
as
stand
-
a
l
one
pro
j
ects
under
an Unp
l
anned Ma
i
ntenance Per
i
od
(
UPMP
)
as we
ll.
W
henever
a
D
P
ref
i
t
or
a
D
P
convers
i
on
i
s
ant
i
c
i
pated
, BO
U
RBON S
h
i
p Management
O
rgan
i
zat
i
ons
shall
assess
the
potent
i
a
l
conse
q
uences
of
the
pro
j
ect
through
a
Management of Change – Risk Analysis
V
ers
i
on
SF (BOS-
P
RD-0
7
0
1
.000
6
-
ver
.
C
R).O
r
i
g
i
na
l D
ate:
3
1
/
1
2
/
20
1
5
.
V
ers
i
on
D
ate:
N
/A
.
V
a
li
d
vers
i
on
on
l
y
on
QM
S
s
i
te
.
Uncontro
ll
ed
document
when
pr
i
nted
.
Page
1
6 of
44
Procedure prepared by:
BOS
H
ead
of
O
perat
i
ons
.
Approved
by:
BOS
H
ead
of
O
perat
i
ons
.
V
a
li
dated by:
BOS
Qua
li
ty
R
epresentat
i
ve
.
462