JYN-74 MKI
Norsafe JYN-74 MKI — Davit-launched totally enclosed lifeboat (TELB) for commercial shipping.
Components & Design
Component data being added…
Technical Data
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Common failures & inspection points
Visual inspection of hull, superstructure and buoyant tanks for cracks, corrosion, deformation, or fire damage; condition of fire-retardant GRP material
Engine propulsion system functionality test (minimum 3-minute run); fuel system integrity and emergency engine start capability
Airtight seals and hatch integrity; condition and operation of all doors, hatches, and ventilation systems per MSC.535(107)/MSC.559(108)
On-load and off-load release gear functionality; annual dynamic load testing at 1.1x maximum loaded weight; certification of hook release mechanisms
Self-righting mechanism operation verification (must self-right within 15 seconds if capsized); positive stability checks up to 180 degrees
Compressed air supply systems and breathing apparatus; verification of minimum 10+ minutes occupancy air capacity
External sprinkler/water spray systems and thermal insulation condition; fire-resistant material integrity
Safety equipment verification: life jackets, personal protective equipment, harnesses, shock-absorbing seats, ladder condition
Type-general inspection and maintenance points for this equipment category — not model-specific.
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