Passenger Stairs (PAS 3.2 HD)

The PAS 3.2 HD is a manually-towed passenger boarding stair designed for service at aircraft doors on narrow-body jets — B737, A320 family, and equivalents — where a jet bridge is unavailable or impractical. The unit consists of a hot-dip galvanised steel stair flight mounted on a wheeled chassis with a fixed tow bar; a handrail system runs the full length of both sides, with sliding or folding sections at the top to clear the door frame during positioning. The 'HD' designation indicates a heavy-duty structural specification compared to lighter regional variants, meaning the frame and step deck are sized for sustained high-cycle use at busy secondary terminals or remote apron positions. In operations, the PAS 3.2 HD is towed to the aircraft by a ramp vehicle, positioned against the fuselage sill, and stabilised via ground jacks before the door opens. It suits point-to-point carrier operations, charter and hajj/umrah peak-season surges common across GCC regional airports, and any stand lacking a fixed bridge. The nominal sill reach of 3.2 m covers the main door sill range of typical single-aisle jets. For procurement teams, the key operational trade-off versus a self-propelled stair is unit cost and maintenance simplicity: no engine or hydraulic circuit means lower acquisition price, simpler pre-departure inspection, and lower MTTR when a fault occurs. Where ground-movement is handled by a tugs pool already on shift, a towable unit is the more fleet-efficient choice. Galvanised steel construction is directly relevant to coastal Gulf environments where saline air accelerates corrosion on untreated mild steel.