Supply of S Stock Seat repairs

Compin Fainsa are the Original Equipment Manufacturer (OEM) of the seat cushions.

TfL does not own or have access to the drawings, material/product specifications or the manufacturing processes originally used to enable us to test the market for alternatives. If an alternative supplier was selected for the repairs, they would likely employ alternative manufacturing techniques or materials to meet our requirements, resulting in variations in the final product.

These variations would introduce incompatibility with the existing seat system and would give rise to disproportionate technical difficulties in operation and maintenance. In particular, this would necessitate the development of a new repair specification and comprehensive verification and validation activities across all interfaces, including fire compliance testing, endurance testing, and in-service trials, to ensure the repaired seats meet the required safety and performance standards.

In addition, introducing non-OEM variants would increase maintenance complexity through mixed fleet configurations, potentially requiring different inspection regimes, as well as creating uncertainty in long-term performance and lifecycle behaviour.

Compin Fainsa can guarantee full compatibility and continuity of the repair for the S-Stock seats ensuring full compliance with technical and operational requirements.