Question 1

MGN 560 introduced changes to lifeboat testing requirements, replacing the previous requirement for an annual static load test to 200% of the lifeboat's maximum authorised load. What did MGN 560 introduce instead?

Accepted Answer

It introduced a requirement for an initial dynamic test of the davit/winch brake using a load cell, with the peak dynamic load recorded during that test then used as the basis (reference load) for subsequent periodic static tests, on the basis that the previous blanket 200% static load requirement was often unrealistically high and could itself cause damage to davits, winches and brakes Concerns had been raised that the long-standing requirement to static load test lifeboat davits, winches and brakes annually to 200% of the lifeboat's maximum authorised load was, for many installations, an unrealistically severe load that did not reflect the actual dynamic loads experienced in service and could itself cause or accelerate wear and damage to brakes and winch components — sometimes creating the very defects the testing was meant to detect. MGN 560 (and associated guidance) moved toward a regime where an initial dynamic test, using a load cell to measure the actual peak load experienced by the system during a realistic lowering/recovery (which may be lower than 200% MAL), establishes a reference "peak dynamic load" for that specific installation; subsequent periodic (e.g. 5-yearly) tests are then carried out to this established reference load rather than automatically to 200% MAL. This was a notable, relatively recent change that examiners have been known to test candidates on, as it represents current best practice superseding older guidance many candidates may still quote.

Question 2

You're asked to test a deck crane grab after electrical repairs nearby. As the grab is hoisted, what should have happened first?

Accepted Answer

The area within the grab's swing radius should be cleared of personnel before the lift On the bulk carrier Fairfield Eagle, a crew member working nearby was struck and fatally injured when a grab being test-lifted after repairs swung unexpectedly. The investigation found the area should have been cleared and barriered before the test lift began.

Question 3

A toolbox talk held before a lifting operation should explicitly cover which of the following?

Accepted Answer

Who must remain clear of the exclusion zone while the lift takes place A toolbox talk exists to make sure everyone present understands the danger zones, the abort signal, and — critically — who must not be in the area while the lift happens. The RMIMA investigation into the Fairfield Eagle fatality found the toolbox talk had not made this clear.