I was on a Garuda 747 many years ago where the cabin crew passed around a sheet of paper to the passengers with the captain's name, our cruising level, our route, estimated time of arrival etc. This was in-lieu of the flight crew making an announcement to the passengers on the PA. I'm not sure why they did this, but it sure was quite an "interesting" experience. My guess is that the PA system on the flight deck was probably not working ..hehehehehe .. it was an old aircraft with bits of the interior panel falling off.