CAP168 http://www.caa.co.uk/docs/33/CAP168.PDF
Chapter 6 Aeronautical Ground Lighting
Understanding CAT 168
Aeronautical Ground Lighting - Minimum Licensing Requirements
Excuse the pun; can anyone shed some light on the minimum percentage of serviceable runway light fittings for approach high intensity inner 450m and supplementary lighting?
Section 12
Maintenance of AGL Systems
In table 6.7, does the reference to App inner 450 relate to a joint percentage of inner 450 and supplementary lighting? I ask because I can’t see a reference to supplementary lighting on its own.
I have linked to an excel table to assist with my explanation so that I can hopefully better understand the text book description.
view here
The instance I use lets user’s input un-serviceable light fittings in the yellow column, depending on where and how I interpret the combined or independent percentage results in different outcomes.
I receive different results for CATII/III compliance depending on how I distinguish the data. I have 7 outages as an example.
Views and explanations welcome…