Originally Posted by
rjsquirrel
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.
Coincidentally an ex-colleague engineer pitched up at the gliding club on Friday and I took him for a flight in my glider. We discussed the vulnerability of having a near-all-S92 fleet, and one of the things he volunteered was the flakiness of the S92 HUMS system. Lots of delayed morning departures because an air test was required because the system had failed to acquire the necessary parameters during the previous day's flying. So I wouldn't crow about it too much. It may be capable of recording lots of stuff but that is only useful if it actually does record it!