Originally Posted by
Chugalug2
Not sure which FADEC or a/c type you might be referring to, SB. The only notable example that I can think of was the Chinook Mk2 FADEC code, but that was a UK item I believe. BD had that code analysed (as they are mandated to do in all cases) and found it so bad as to be positively dangerous and stopped all further flight testing as a result. They also formally advised the RAF to ground in service Mk2's (amazingly already in squadron service despite the lack of a legal RTS) but it was too late for the crew and pax of ZD576 who perished in the infamous Mull tragedy the following day.
Perhaps if the Chinook Mk2 had entered service IAW the Regs then those 29 avoidable deaths would indeed have been avoided. As to the case you refer to, would you be kind enough to identify the a/c type involved? BD would have tested it IAW the mandated regs, including the FADEC code, just as they did with the Chinook Mk2. The difference might be that the MOD followed the regs in this case before releasing the a/c into service. A lesson learned from Mull perhaps.
LHTEC T800 for Future Lynx (as it was at the time). The principle objection from QQ was that the C compiler that had been used wasn't on their list of certified compilers, therefore it wasn't safe for the UK. The fact that other governments, like Malaysia, were OK with it on the Super Lynx 300, the US were OK with it for the (ultimately cancelled) Comanche and the FAA were happy with it for the civil variant of that engine (same FADEC) wasn't considered safe enough by the QQ BDN bods.