Hi Antti
There is quite lot on this subject on my PiCMA.info website. You could start at
Monitoring breakdowns | PicMA where I discuss it in some detail.
Please either PM me or better email direct to
[email protected] . I'm away from home at present but will have a look at my own archive to see what I have by way of source material. That includes many accident reports where the TCAG was a significant factor.
Regards
Steve