If anyone has been wondering why the blue instrument-lights are always turned on at daylight when starting up - there is a solution.
the oh6 coding has a daylight recognition - but there is a little bug which leads to having the 4 light-knobs always on.
i have a fix in ...Mods\aircraft\OH-6A\Cockpit\Scripts\Systems\light_interface.lua for lines 110-113:
(commented out is the original)
now the daylight recognition works and turns the knobs to 0 at daylight times.
(this gives a little FPS gain too because the ca. 20 lights are not needlessly rendered anymore)
for everyone wanting the fix right now - drop the zip-content into your Mods folder
OH-6A_1.5_Lights_always_on_FIX.zip