Zone-based TACT planning
Planning by compartment rather than by ship system: one team, one zone, one window at a time.
Conventional repair planning takes the ship’s systems as its units and schedules each through the compartments it passes. Inside a cramped hull that produces interference no one can predict: several trades in one compartment, borrowed crews, no clear task for the day.
Zone-based planning reverses the priority. Execution is planned by zone, one team in one compartment in one window, and the test plan is layered on as a consequence. The plan is built as a conversation between management’s TACT and the floor’s Detailed Work Procedures.
An example: The SLEP-2 recovery
The new method went live on 6 January 2014. By the end of March the yard had recovered a year’s delay in outfit installation, at more than four times its previous rate, with the same workforce.