Hi there, I'm not sure where this link is going but I have a couple of notes on the FMECA.
1. Firstly I fail to see how the presence or otherwise of a catastrophic event within the FMECA would directly change the reliability of an airframe. Surely reliability and availability are functions of MTBF and system redundancy?
2. Secondly, if a catastrophic event were not mentioned at the design stage of an aircraft, that is not to say it would not be in the safety case to the airframe purchaser. Are you saying that there were no catastrophic events in the Merlin FMECA?
3. Lets permit the Merlin to get some serious time in UK Service before we judge it. If after that if there are problems, it will be constructive criticism that will be required.
Thats it. Interested to see how this link fill up.