. Control & Instrumentation: In December 2012, Alstom failed the Factory Acceptance Tests on the Boiler Protection System for the third time (critical to commencing hot commissioning). The Boiler Protection System had to undergo substantial redesign; . Post Weld Heat Treatment (PWHT): A sub-contractor of Hitachi failed to heat-treat a large number of welds with the appropriate procedure. Multiple welds needed to be tested and insufficiently treated welds required replacement; . Welding Procedure Qualification Record (WPQR): A sub-contractor of Hitachi manufactured certain high-pressure part equipment according to incorrect weld procedures and needed to be replaced; . Electrical System: Access issues were preventing contractors from completing the required work; and . Balance of Plant Mechanicals: Fire water system delayed by fabrication and pipe work and compressed air pipe routing had not been completed.