I am told that 92 HUMS data is downloadable regardless, unlike the reported shortfall of other HUMS systems. Also, the 92 HUMS is said to have hundreds of parameters, including those normally part of the crash recorder data stream, so much of the aircraft activity besides system health is probably available as duplicate data.
One question: Is it standard practice to have no formal instrument approach like LPV or GPS to standard refuel heliports in Ireland or elsewhere? Do aircraft normally fly ad hoc instrument procedures in near zero zero conditions (other than overwater SAR rescue approaches)? And more to the point, will they in the future?