Can anyone please advise me on the Contaminated Runway Takeoff Perfo B737 : in fact, when do I use table [Wet Runway], when [Slush/Standing Water] and when [Slippery Runway]...?
Example 1 :Weather report is 2 mm standing water
Do I use [wet runway] or [Slush/Standing Water] ?
Example 2 :Weather report is 10 mm dry snow
Do I use [slippery runway] or do I enter [Slush/Standing Water] with the equivalent of 2 mm wet snow ?
Example 3 :Weather report is 4 mm ice
Do I use [slippery runway] (but I have no breaking action) or do I enter [Slush/Standing Water] with the equivalent of 33 mm snow ?
Example 4 :Weather report is 20 mm wet snow - braking action poor
Do I use [slippery runway] (braking action poor) or do I enter [Slush/Standing Water] with 20 mm wet snow ?
Thanks for your help, this is really a grey zone for me and I can't find any reasonable explication in the flight manuals.