What if they said they were a "PAT Tester"?

Get real, guys. Joe Public doesn't give a damn about who fixes the kit. And why should he?
Well if they say their a PAT Tester and just PAT Tests that's alright but you know there's some companies who are just lick and stick guys or as we've seen here they give it a quick function check and tell the staff to ship it to the local hospital for repair! Honestly the clinical staff could probably do that for themselves.
Then again your entering the territory of is it OK to just PAT test medical equipment or should it be tested to medical equipment standards? (60601-1, IEC 62353)
"do not use after ..." (such and such a date). I seem to remember advising against that sort of sticker many times in the past. Hostage to fortune, and all that (despite being pretty obvious, I would have thought). Now some poor [censored] will be in the [censored]!
Now here it doesn't matter if registration was in place or not, you can guarantee that the HSE probably did a full investigation into the situation and checked if the person servicing it was competent. It seems registration just tries to do that before the accident happens and the HSE get involved. (of course if this was a RIDDOR reported incident, it seems the incubator didn't kill the baby, it just didn't help cure it)
But why all this need for recognition? Are we so insecure that we can't we be trusted to simply get on with the job?
There's a quote by John Ruskin that they display in a local sandwich shop that answers this.
There is nothing in the world that some man cannot make a little worse and sell a little cheaper, and he who considers price only is that man's lawful prey
You can always guarantee that somebody will try and cut corners and do the job a bit cheaper, what you have to watch out for is that standards aren't sacrificed.
1) As technicians, by the Engineering Council
The thing is not everybody so called 'servicing' medical equipment are technicians, some of them look highly suspiciously like salesmen!
2) By the terms of our Employment Contracts
If your employed to do something without training, you do it without training, it doesn't really do anything does it!
3) By the Rule of Law (just like everyone else)
The Rule of Law only really takes effect in this case after you've broke it!