From FreeSpace Wiki
repair-subsystem Repair Subystem (Action operator) Increases the specified subsystem integrity by the specified percentage.If the percntage strength of the subsystem (after completion) is greater than 100%,subsystem strength is set to 100%. Takes 4 arguments... 1: Name of ship subsystem is on. 2: Name of subsystem to repair. 3: Percentage to increase subsystem integrity by. 4: Repair turret submodel. Optional argument that defaults to true.
- You can use this SEXP to repair the hull as well as any subsystems. Using a repeating event, it is possible to make a ship continually regenerate hull strength as the mission progresses, even as it takes damage.
- Turrets that had been destroyed before being repaired will no longer operate, but their hull integrity will be displayed as 100%.