607/ Anchor Handling and Towing Operations Procedure / 992
A
nc
h
or
H
andlin
g
and To
w
in
g
O
p
erations
P
rocedure
BOS-
P
RD-2
6
.900
6
14
E. Delivering PCP back to rig
Delivery of PCP back to rig can be done by two methods depending on charters preference.
a) Method 1 is the most common and here you have the towing pins fully retracted before you
release the wire stopper on crane operators command:
x
Rig crane is hooked up to pick-up wire, connected to PCP to be delivered.
x
Deck crew removes safety pin in wire stopper on command from officer in charge.
x
Wire stopper is released on agreement with rig crane operator.
b) Method 2 requires two wire slings attached to PCP. One to be used as pick-up wire for the
crane and one longer wire sling to be connected to ship’s tugger wire:
x
Towing pins to be retracted at all time. Pick up sling for crane (first wire sling) attached to
PCP to be pulled from wire stopper and aft through closed towing pins.
x
Second wire sling to be connected to ship’s tugger wire.
x
Rig crane to be hooked on pick up wire and tugger wire to be tensioned up before
removing safety pin and releasing wire stopper.
x
Tugger winch operator then slack out tugger wire until crane gradually takes the full
weight of PCP.
x
As soon as crane got the full weight of PCP, deck crew to release wire sling from slack tugger
wire (no tension on tugger wire).
B
y
us
i
ng
th
i
s
second method
,
you
e
li
m
i
nate
the
r
i
s
k
of
shoc
k l
oad
i
ng
the
r
i
g
crane when
re
l
eas
i
ng
PCP
from
shar
k j
aw
.
Method
to
be
used
i
s
of
course
a matter
of
charterers
re
q
u
i
rement
and
Master
’
s
j
udgement
of
safety
.
F. Deep draught
I
ncreas
i
ng
l
y
,
to
avo
i
d
hav
i
ng
to
off
l
oad
dec
k
cargo
and
mud
tan
k
s
,
r
i
gs
are
moved
at
deep
draught
. I
t
i
s
not
poss
i
b
l
e
then
to
see
the
anchors
or
bo
l
sters
,
so
anchors
cannot
be
rac
k
ed
,
and
are
carr
i
ed
on
the
dec
k
of
the
anchor
hand
l
ers
. T
he
ends
of
the
cha
i
ns
are
passed
up
to
the
r
i
g
us
i
ng
the PCP
connected
to
the
cha
i
n
.
4.2.1.9 Deployment 2
nd
method
S
econd
conf
i
gurat
i
on:
x
T
he
r
i
g
needs
ass
i
stance
from
a
supp
l
y
vesse
l
wh
i
ch
stores
l
ength
of
cha
i
n
to
be
added
to
the
r
i
g
’
s w
i
re anchor
li
ne
.
Vers
i
on
S
F(
BOS-
P
RD-0
7
01.000
5
-
ver
.
C
R
)
. O
r
i
g
i
na
l D
ate:
3
1/12/201
5
.
Vers
i
on
D
ate:
N/
A
.
Va
li
d
vers
i
on
on
l
y on QM
S
s
i
te
.
Page
31
of
60
Procedure prepared by:
BOS
Head
of
O
perat
i
ons
.
Approved
by:
BOS
Head
of
O
perat
i
ons
.
Va
li
dated by:
BOS
Qua
li
ty
R
epresentat
i
ve
.
607