Bourbon - Offshore - Surf - SMS manual 2016

574/ Helicopter Winching/Hoisting Operations / 992

Helicop ter Winching /Hoisting O perations
BOS-PRD-2 6.900611
10) Helicopter returns to a position vertica lly over the hoist area and retr ieves the tag-line manually.
During retrieval, Person task ed with tending the stretcher will guides the tag-line off the deck and
then leave the hoisting zone.
11) Chief Off icer signals the he licopter to withdraw and stretcher evacuation is completed.
4.1.6 P rocedure for hoisting payloads
4.1.6.1 Preparation
Insofar as possible, the vessel should inform the helicopter crew of the total weight to be transferred
(stretcher and casualty).
When transferring to the vessel, it is important to remember that sling carries a 10 kg weight and a hooking
device allowing attachment and detachment of the payload.
Payloads may be transferred us ing palettes, nets (e. g. for bu lk materials ), or s ling ing devices with several
cables for large oversize loads.
When packing nets, special care should be taken to avoid sh ifting when the load is landed.
4.1.6.2 Attaching the payload
Before arrival of the he licopter , the stretcher should be prepared and moved to the ho isting zone.
The AB should stand by near the hoisting zone, ready for the Chief Officer’s instructions.
After stab ilizing the sli ng above the payload and with the Authorization by Chief O fficer, the load can be
attached as follows:
1) Deck team takes pos ition beneath the he licopter .
2) B osun grounds the hook by touching with the static discharge rod that has been c lamped to the
vessel.
3) Bosun tasked with grounding puts the static discharge rod down and holds it on the deck with one
foot then picks the sling up so that the cables are straight. When standing on the cable , the bosun
must stay alert of the helicopter’s movement.
4) Bosun in charge of attaching the payload pl aces the hook in the ring holding the stretcher.
When the hook has been firmly attached and can be clearly seen by the Chief Officer, the bosun gives the
regulatory “OK” hand signal to the helicopter crew and the Chief Officer. At the same time the deck team
wi thdraws without further instructions.
Hoisting should not begin until personnel have withdrawn from the ho isting zone and the he li copter is
positioned vertically over the pay load.
4.1.6.3 Detaching the payload
When the vessel is ready, the he licopter approaches under guidance by the Chie f Officer.
1) After the payload has been landed, the he licopter has stabilized, and the p ilot has given “OK” hand
s ignal, the Chief Officer will instruct the deck team to take position under the helicopter.
2) Bos un grounds hook by touching with the static discharge rod .
3 ) Bos un tasked with grounding puts the static discharge rod down and holds it on the deck with one
foot then pi cks the sling up so that the cables are straight. W hen standing on the cable, the bosun
must stay alert of the helicopter’s movement.
4) Bos un tasked with tend ing the hook detaches the payload.
5 ) The Chief Officer gives the regulatory “OK” hand s ignal to the he li copter crew as we ll as the deck
team. At the same time the dec k team withdraws without further instructions.
If the helicopter p ilot decides to release the sling, he will first inform the Chief Officer who will
prevent the deck team from taking position in the hoisting zone.
4.1.6.4 Safety instructions
The hazards associated with rotor downwash and vessel movement (fa lling ), static electric ity discharge
(e lectrical shock), and swinging or sudden disconnect ion of the payload (falling objects) can be min imized by
strict application of procedures.
Versi on SF (BOS-PRD-07.900611-ver.01). Origi nal date: 08/08/2014. Version date: 31/12/2015. Valid version only on QMS site. Uncontrolled document whenprinted.
Procedure prepared by: BOS Head of Operations. Approved by: BOS Head of Operations . Validated by: BOS Quality R epresentative.
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