Viking9. You're obviouly neither a pilot nor an ATCO and without wishing to offend please believe that those of us at the sharp end know what we're saying. The fact that there were two go-arounds by the same airline in a few hours means nothing unless you know the reasons for the go-arounds. I've had 4 consecutive BA a/c go-around because a runway was blocked. So what? It doesn't mean it's any less safe flying with BA. I have seen a/c go-around in the middle of the night with nothing else around....
I've got 31+ years in as a Heathrow controller - 23 of those in the tower so I know a lot about go-arounds. OK, the commercial pressure on us to achieve higher landing rates will inevitably result in the odd go-arounds but many, many more occur because of other factors. We use a standard minimum of 3nm spacing on final approach - 2.5nm in certain weather conditions - which means one a/c is leaving the runway as the next is on short final. This has been the situation at Heathrow for many, many years. We currently shift 1200+ movements a day compared to around 7-800 when I started. That does NOT mean the a/c are getting more dangerously close together; it means that we don't have so many quiet periods. We still fall asleep early afternoon and after 9pm and could easily land another 50-100 a day under ideal conditions.
Go-arounds occur for a large number of reasons, including:
One ahead slow to clear the runway.
Blocked taxiway meaning someone has to taxi down to the next turn off.
Landing a/c bursts a tyre (nothing exciting) and blocks runway for a few minutes.
LVPs or other weather problems on final approach.
Maybe the wind as dropped off suddenly producing an increased groundspeed on final approach and a "catch-up" situation develops. Windshear may cause a go-around too.
Runway problem - maybe broken light fitting, broken concrete, etc.
A/c problem - a mechanical problem on final approach usually means a go-around so the crew can sort it out.
Someone went around recently because the cabin wasn't ready...
Maybe there's a helicopter ambulance going to an accident on the M25 - they are Cat A in that case and everything has to get out of the way.
Oh.. I could go on all evening. Your suggestion that it makes more work for us radar guys is colouring things a bit. It is absolutely NO problem to fit a go-around back into the system.
I'm sure you mean this to be a serious thread but please don't try to over-sensationalise a perfectly normal and safe procedure which causes neither pilots nor ATCOs to lose any sleep..