đ Key Concepts
⢠Hydrostatic release units (HRUs) purpose and how they work
⢠Required inspection and servicing intervals for lifesaving appliances on fishing vessels
⢠Difference between inspection, servicing, testing, and replacement schedules
đ Think About
⢠Think about how often a device that is activated by water pressure and exposed to the weather should be checked, versus fully replaced
⢠Consider which interval (monthly, quarterly, annually, five years) is most realistic and commonly used in regulations for safety-critical equipment like liferaft releases
⢠Ask yourself: Do regulations usually require frequent âtestingâ of HRUs on board, or periodic servicing/replacement by an approved facility?
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Before You Answer
⢠Verify in 46 CFR requirements for inflatable liferafts and hydrostatic release units on fishing vessels
⢠Check which action is specified in regulations: servicing, testing, overhaul, or replacement, and at what time interval
⢠Confirm whether the same time interval used for HRUs matches any of the answer choices (monthly, quarterly, annually, five years)