Aterpster,
I know for sure the procedure existed. I have flown it myself and experienced it from the back with some trepidation because I was never quite comfortable with it. I asked a couple of pilot-friends/former classmates of mine now working for RAM, Qatar, Emirates and so on and they (obviously) recall the procedure too although some said they never had the opportunity to use it.
If there is no published procedure, then the mystery deepens. What was he doing pointing towards the Margalla hills?
The ILS 30 approach is pretty straightforward as all of you pilots can see from the chart. There is high ground around but no big deal. The back-course to 12 is straightforward too.
I know I had the charts somewhere. I should be more careful with memorabilia of days long past except I yielded to my wife nagging me to "clean up this awful mess". Don't we all?