S-I LOC
 

Hi

Just looking at the PER Notam's and it has.

ILS or LOC Rwy 21 S-I LOC/DME MINIMA 550(507-2.0)


Could somebody please explain what the S-I stands for please.

newifr

Straight in (as opposed to circling)

tmpffisch

Thanks for the info.

new

What is the reason for this NOTAM.

BNE, PER , I have seen so far

Same, same at CNS too.

Are you guys referring to the NOTAM's that amend the visibility for all LOC procedures?

Aip dep and apch (dap) east ybbn amd
ils or loc rwy 01 s-i loc/dme minima 560(547-2.2)
ils-z or loc-z rwy 19 effective 28jun12 s-i loc/dme minima
410(397-1.3)
ils-y or loc-y rwy 19 effective 28jun12 s-i loc/dme minima
410(397-1.3)
from 06 070431 to per

You'll note its for the 28JUN cycle. There has recently been a change in the way visibility for LOC procedures can be calculated, and as such the change has been implemented across the board for all LOC procedures.

In short you can include the length of HIAL in the calculation. Thus the vis can be reduced by the length of HIAL available.