| Lifeboat and rescue boat thorough examination | Annual | SOLAS III/20.11.4 sets the interval; III/20.11.5 requires the work to be carried out in accordance with IMO Res. MSC.402(96), mandatory since 1 January 2020 | Includes an operational test of the boat and its systems |
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| Lifeboat and rescue boat overhaul | 5-yearly | IMO Res. MSC.402(96) sec.6.3 sets the five-year thorough examination and overload tests, made mandatory by SOLAS III/20.11.5; the boat's own overhaul scope is a periodical activity defined by the manufacturer (sec.2.2.7) and comes from its maintenance manual, planned into the same five-year window | Structure, buoyancy, engine, steering and systems; planned with the davit and release gear work |
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| Launching appliance examination and winch brake test | Annual | SOLAS III/20.11.1.1 (examination) and III/20.11.1.2 (winch brake test); IMO Res. MSC.402(96) | Brake tested at the mass of the boat, no persons on board |
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| Davit winch brake dynamic test | 5-yearly | SOLAS III/20.11.1.2; IMO Res. MSC.402(96) sec.6.3.1 | Proof load equal to 1.1 times the weight of the survival craft or rescue boat and its full complement of persons and equipment (SOLAS III/20.11.1.2; MSC.402(96) sec.6.3.1). The brake is applied abruptly at maximum lowering speed. |
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| On-load release gear operational test | Annual | SOLAS III/20.11.2.1; IMO Res. MSC.402(96) | Covers fast rescue boat release gear and free-fall lifeboat release systems |
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| On-load release gear overhaul and load test | 5-yearly | SOLAS III/20.11.2.2; IMO Res. MSC.402(96) sec.6.3.3 | 1.1 × the loaded boat; free-fall release systems are carved out by III/20.11.2.3 |
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| Lifeboat and rescue boat falls renewal | 5-yearly | SOLAS III/20.4 | Or earlier on deterioration; inspected where the falls pass through sheaves |
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| Lifeboat launch drills, including free-fall boats | 3-monthly; free-fall 6-monthly | SOLAS Ch. III Reg. 19, abandon ship drill requirements | Ship's drill, not a service attendance; rescue boats each month as far as is reasonable and practicable, and in all cases at least once every three months. Simulated launching per MSC.1/Circ.1578/Rev.1 |
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| Inflatable liferaft and lifejacket servicing | ≤12 months | SOLAS III/20.8.1.1 sets the interval; III/20.8.1.2 requires an approved servicing station, whose approval conditions are in IMO Res. A.761(18) as amended | Administration may extend to 17 months; some rafts are separately approved for a longer interval |
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| Liferaft gas inflation (GI) test | 5-yearly | IMO Res. A.761(18) as amended, servicing procedure for inflatable liferafts; carried out at a station approved under that resolution for the raft make and type | Inflation from the raft's own cylinder followed by a pressure-holding test of not less than one hour; carried out at the fifth-year service in place of that year's working pressure test, not as an extra attendance. The separate necessary additional pressure (NAP) test runs yearly after the tenth year. The raft's servicing manual governs. |
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| Hydrostatic release unit servicing | ≤12 months | SOLAS III/20.9 | Disposable units are replaced at the date on the unit, not serviced; extension to 17 months possible |
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| Immersion and anti-exposure suit inspection and testing | Annual; 3-yearly pressure test | Inspected at the annual survey under SOLAS Ch. I within the SOLAS III/20 inspection regime; MSC/Circ.1114 recommends air pressure testing of seams and closures at intervals not exceeding three years | MSC/Circ.1114 recommends more frequent testing for suits over ten years of age |
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| EPIRB annual performance test | Annual | SOLAS IV/15.9 | Shore-based maintenance at intervals not exceeding five years at an approved shore-based maintenance facility (IV/15.9.2). The annual test is tied to the certificate, not to a rolling anniversary: on passenger ships within three months before the Passenger Ship Safety Certificate expiry date; on cargo ships within three months before the expiry date, or within three months either side of the anniversary date, of the Cargo Ship Safety Radio Certificate. SOLAS IV/15 sets no 17-month extension. |
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| Pyrotechnics, lights and smoke signal renewal | On marked expiry | Manufacturer's marked expiry date; the LSA Code requires the marking, not an interval | Pyrotechnics typically carry three years from manufacture; work to the date on the item |
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