C208B Caravan lighting regression in SU4 1.6.13.0

[DementedCorn327]

Continuing the discussion from Sim Update 4 Beta (1.6.15.0) Release Notes - October 13, 2025:

@Chewwy94

Aircraft Core Systems

Electricity system

• Fixed an issue that caused some lights to not work properly when using _SET events with an index as parameter.

Fixed for me.