3 - 28.35m Accomodation Ladder designs

Common issues

• Wire rope corrosion, broken wires or reduced diameter from lack of lubrication and weather exposure
• Winch brake slipping or failing to hold the ladder at the set angle
• Worn or seized sheaves and pulleys causing uneven wire rope wear
• Corrosion of the ladder structure, treads or handrail stanchions, especially at welds and pivot points
• Limit switch or safety interlock failure allowing operation outside safe angle limits
• Safety net or lifeline attachment points corroded or missing
• Non-slip tread surface worn smooth, increasing slip risk

Inspection checklist

• Visually inspect wire ropes full length for broken wires, corrosion, kinking or reduced diameter
• Check winch brake holding capability under load
• Inspect sheaves and pulleys for wear, freedom of rotation and correct alignment
• Examine the ladder structure, treads, stringers and handrails for corrosion, cracks or deformation
• Verify limit switches and safety interlocks function correctly
• Confirm the safety net, where fitted, is rigged, undamaged and correctly attached
• Function-test raising/lowering through the full range and check for smooth operation
• Check the securing/stowage arrangement and lashings in the stowed position
• Verify the load test/thorough examination certificate is current
• Inspect the lower platform and roller/skid arrangement at the ship/shore interface

Service intervals

Typical wear limits

Ranges are typical for this design class. Always confirm against the manufacturer documentation for your serial number.

Critical spares

• Replacement wire rope of the correct diameter and construction
• Winch brake lining/pads
• Sheave bearings
• Limit switches
• Non-slip tread inserts

Safety

• Fall from height risk during rigging, use and maintenance - fall protection required per the SMS
• Crush/entanglement hazard at sheaves and winch during operation
• Failure of wire rope or winch brake under load - never exceed the rated safe working load
• Working near the ship/shore interface with vessel movement - coordinate operation with the duty watch

Class survey

Means of access equipment such as accommodation ladders is typically subject to an annual thorough examination and periodic load test under class/flag requirements; wire rope condition records and the load test certificate are commonly checked at survey.