A question and answer from the 225 thread #12 31st July 2004:
Please can you confirm whether or not the S92 also has a true 30 minute run dry gearbox as I'm unclear on this? Is immediate pilot action required in the event of a loss of main gearbox pressure? Does the check-list say "Land Immediately"?
NickLappos
Join Date: Apr 2003
Location: USA
Age: 62
Posts: 2,843
..... the S-92's oil protection system protected the transmission to the FAR/JAR with such aplomb that we shut the test down at 3 hours, not 30 minutes, with the system still running along (but admittedly pretty close to its end). That is 2 1/2 hours longer than required. The pilot must activate the system, but has several seconds to do so after clear indications, and the checklist does not say "land immediately."