Mandatory Technical Directive issued for Supermarine Spitfire mk26 and mk26a

It has been found that there is potential for the fin of the Supermarine Spitfire Mk26 and 26B to be misaligned during build, due to a build-up of tolerances in the fin and its attachment, possibly leading to a mis-rigging of the rudder and failure to achieve the desired range of rudder travel. This could possibly result in degraded controllability in flight and on take-off and landing. In the interests of safety MTD 01-2024 calls for mandatory checks to be made on the fin alignment and rudder range of movement.