Safety, Fire & Survival · Helicopter Operations
During a helicopter winching operation, a lowered highline or hook should be:
- AGrabbed immediately when first seen
- BTied off to a fixed structure
- CAllowed to touch the deck/water first to discharge static electricity before handling✓ Correct
- DCut free at once
Explanation
The helicopter builds up a static charge; the winch wire/hook must be allowed to touch the deck or sea to ground it before crew handle it, preventing a shock. The highline is never made fast to the ship.
Authority: IAMSAR Manual Vol III; ICS Guide to Helicopter/Ship Operations
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