. 
The criteria for determining the minimum size of the HHO site - appropriate to the task.

. 
Fuel planning.

. 
Search procedures.

. 
HHO transfers both onshore and offshore.

. 
Radio communications.

. 
Visual communications.

. 
Standard hoist procedures – to include minimizing height above solid surfaces in the event of hoist emergencies.

. 
Hoist emergency procedures, including intercom failure, hoist failure, hoist runaway and cable cutting.

. 
Hoist operators instructions.

. 
Winchman instructions.

. 
Air deployment of life rafts, including HERDS.

. 
Call-out priority definitions.

. 
SAR response criteria.

. 
Weather minima, to include differences for non auto-hover capability.

. 
Conduct of SAR missions.

. 
Specialist equipment.

. 
The method by which crew members record hoist cycles.

When required, relevant extracts from the Operations Manual supplements should be made avail-able to the organization for which the HHO is being provided.

A12.3.2 Crew composition
The minimum crew for HHO should be as stated in the Operations Manual supplement. It will depend on the type of helicopter, the weather conditions, the type of task and, in addition for off-shore operations, the HHO site environment, the sea state and the movement of the vessel. In no case should the crew be less than two pilots, one HHO hoist operator and one winchman.
A12.4 Aircraft & equipment fit
Only twin-engine helicopters, with a single-engine HOGE capability during training to public transport standards should be used for the rescue element of SAR tasks. This HOGE training requirement is mandated by some regulatory authorities but does not preclude lesser OEI perform-ance at higher weights during actual SAR. Aircraft should be equipped for standard offshore IFR operations. Additionally, aircraft equipment should include:
. 
Hoist and hoist fittings allowing hoist operation from a location at the cabin door.

. 
GPS.

. 
Radio altimeter.

. 
Marine Band Radio.

. 
Radar with search and beacon modes.

. 
DF homing capability.

. 
The following optional equipment:

– approved stretcher fit;
–
4-axis autopilot;

–
auto-hover capability;

– searchlight. Maintenance instructions for HHO systems must be established by the operator in liaison with the manufacturer, and included in the operator’s helicopter maintenance programme. The installation of all helicopter hoist equipment including any subsequent modifications and, where appropriate, its operation must have an airworthiness approval appropriate to the intended function. Ancillary
equipment must be designed and tested to the appropriate standard and acceptable to the author-ity.

A12.5 SAR equipment
Minimum equipment requirements should include the following:
. 
Sea tray fit (floor protection).

. 
Air transportable rescue equipment pack (generally held on a mobile trolley at base). This would normally include such items as:

–
hoist operator and winchman harnesses, including quick release belt;

–
lifting strops;

–
protective helmets;

–
winching gloves;

–
knee pads;

–
earthing wire;

–
hooks and grapples;

–
manual cable cutter;

–
immersion suits;

–
stretchers;

–
hi-lines (optional);
　
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