How about getting the grass cut on 11/29? Its starting to come through the tarmac quite seriously in places, there may be signs of weedkiller on some of it, but if the management don't try some pro-active maintenance then they'll have their perfect excuse to close the runway (or is that part of PL's plan anyway?)
I have mentioned to Ground Ops that 29/11/ tarmac runway needs mowing !!
There is not much risk of that runway closing for political reasons that I will not waste time clarifying now. The biggest problem will be the cost efficiency of keeping the surface useable.
Is it the law that grass has to be kept between 6 and 8 inches or is it a recommended practice.?
Its another one of those aviation 'grey areas' again. As you quite rightly suggest if we are not seen to be using 'best practice' and CAA advice then something gets a nasty strike then we leave ourselves a bit exposed.
If not I'd reach for CAP683 and just accept that for the greater good your greensward will have to offend your eyes
Dont know where CAP683 'Assessment of Runway Surface Friction for Maintenance Purposes' comes into the grass argument?
Regards
SATCO