A9.3 Operational procedures
The helicopter should have an approved Flight Manual Supplement outlining the operation, limita-
tions, and emergency procedures of the helicopter and hoist during hoisting operations. The helicopter operator should have an approved Helicopter/Ship Operations Manual or Operations Manual Supplement outlining the following:
a) responsibilities of crew members;
b) equipment standards;
c) pre-flight responsibilities;
d) weather limitations;
e) communications;
f) procedures at winching area;
g) approach and departure procedures; and
h) emergency procedures.
A9.4 Personnel (pilots & winch operator) guidelines
A9.4.1 Training programmes
The Operator will establish a written training programme and minimum qualification criteria for hoist or winching operations. The programme will cover items ‘a’ through ‘h’ in the preceding para-graph.
All personnel (pilots and hoist operator) should have an initial competence course and thereafter an annual refresher.
Training records should be maintained as outlined in the winch training programme.
Training programmes are also recommended for vessel/offshore structure crews who may be involved in winching operations.
A9.4.2 Minimum crew
Winching operations should be conducted with two pilots and one hoist operator.
A9.4.3 Training & experience levels
Requirements for pilots and winch operators/crewmen are detailed in Section 8.1.10 and Appendix
5.
A9.4.4 Passengers
Passengers must receive a full emergency briefing, including the wearing of and use of survival equip-ment, prior to a flight. If the transfer involves winching then the briefing must also include practice with donning and using the lifting strop, as well as other winching procedures and crew signals. Practice can normally be carried out on the ground with the aircraft shut down.
A9.5 Required equipment standards
A9.5.1 Minimum equipment
The minimum equipment should consist of the following in additional to the items required for offshore flight:
a) emergency cable-cutters (not bolt-cutters) to backup the electrically activated cutters;
b) safety harness for winchman or other assistant;
c) static discharge equipment (as necessary);
d) lifting device or basket;
e) leather gloves; and
f) harness-cutting knife (protected edge).
A9.5.2 Maintenance
Hoists and all associated equipment should be maintained as prescribed in the Operators approved maintenance programme. The following requirements should be complied with:
a) technical logs should be maintained for all winches and lifting devices to record all hoist cycles and maintenance performed;
b) time and/or cycle life limits should be established for the cable and cable-cutting squibs;
c) all bulletins, notices, and directives or maintenance programmes published by the manu-facturer of the airframe and the hoist should be on hand and incorporated into the overall maintenance programme as appropriate;
d) all lifting devices (baskets, straps, personnel harnesses, personnel lifting devices, and any ancillary associated lifting equipment) that attach to the hoist cable should also be included in the maintenance programme.
e) electrical hoist assemblies that do not have specified bonding tests and parameters should have the electrical bonding tested as follows: i) test the electrical bonding between all adjacent component parts of the hoist assembly, including, but not limited to, control box, electric motor casing, hoist body, hoist arm and attachment bracket, and between the hoist assembly and the aircraft. The maxi-mum permitted resistance is 0.010 OHM, using a bonding tester capable of resolving to 0.002 OHM;
ii) testing is to be completed every 24 months, or more frequently depending on fre-quency of installation and use; and iii) results of testing should be recorded in the aircraft maintenance log.
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