428-Helicopter Operations Procedure / 748
H
elico
p
ter
Op
erations
BOS-PRD-07.900610
4.
2 L
an
d
in
g
P
re
-
arri
v
al
4.2.1
When a flight to the
Vessel
has been scheduled, the
Ra
d
io
Op
erator
should
send a “weather / status report”
to the
H
elico
p
ter
C
ontractor
at least one hour before scheduled departure time.
The Master
shall
be alerted by the
Ra
d
io
Op
erator
before any flight departing for the
Vessel
in case of one
or more of the following meteorological factors:
Wind speed greater than 40 knots;
c) Gusts greater than 50 knots;
d) Horizontal visibility less than 2 nautical miles;
e) Vertical visibility less than 500 feet;
f) Significant swell greater than 4 meters.
Conditions
Limits for Landing
Limits for Planning
Day
Night
Day
Night
Pitch & roll
+3º
+2º
+3º
+2º
Average heave
rate
1.0m/s
0.5m/s
1.3m/s
0.5m/s
In situations involving any of these factors, the
Vessel Master
in coordination with the
C
hie
f
Off
icer
will
contact (if applicable) the
Master
of the Standby Vessel and seek confirmation that a Standby Vessel can
provide adequate coverage in the event of an emergency. In particular, the
Vessel Master
will ensure that
the Fast Rescue Craft can be safely launched.
If meteorological factors are significantly worse than those defined above, the
Vessel Master
, after analysing
the weather forecast, can decide to postpone the flight until the conditions return within the operating limits.
The
onshore
H
eli
-
Re
p
should
inform the
Ra
d
io
Op
erator
of actual time of departure and estimated time of
arrival at the
Vessel
so that
Vessel
p
ersonnel
make all necessary arrangements for the flight.
Before the commencement of day's flight schedule, the
HLO
shall
check that all helideck equipment
associated is serviceable and in position. The
HLO
shall
also carry out the checks required by the
pre-arrival
checklist
.
If applicable the
Ra
d
io
Op
erator
shall
inform the Master of the Standby Vessel of the flight schedule once in
the morning and then again after departure of the helicopter. The vessel
shall
then set and maintain a
heading to one side of the helicopter's flight approach path. The vessel’s position
shall
be confirmed to the
HLO
. Helicopter Operations
shall
be continuously monitored by the
S
tan
d
-b
y Vessel
on Air Band Radio.
Crane operations
shall
be halted before a helicopter approaches to land. Jibs
should
be lowered and stowed
in a safe position or, after agreement with the
H
elico
p
ter Master
, may be kept in a raised but stationary
position during helicopter operations.
The list of the vessel
shall
be corrected to zero.
The
Ra
d
io
Op
erator
should
listen out on the appropriate radio frequency during helicopter departure and be
ready to supply current weather conditions at the
Vessel
location as well as details about routing and load
requirements.
Version 01. Original date: 8/8/2014. Version date:N/A. Valid version only on QMS site. Uncontrolled document when printed.
Procedure prepared by: BOS Ops Dpt Project Coordinator. Approved by: BOS Operations Department Director. Validated by: BOS Quality Representative.
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