.
SEE:
RCAF CH-148 down in the Ionian Sea, 1 dead, 5 missing...
According to a June 23, 2014 report.....“The Conservative government has agreed to accept new helicopters to replace Canada’s 50-year-old fleet of Sea Kings even though they don’t meet a key requirement recommended for marine helicopters by Canada’s air safety investigator.....the government has agreed to forego...a formerly mandatory safety measure: a 30-minute run-dry standard for its main gear box. The importance of the ability to fly for 30 minutes after a loss of lubrication in the main gear box was reinforced by an investigation into
a deadly 2009 crash of a Sikorsky-built helicopter. The gearbox is a kind of linkage between the helicopters engines and its rotor system. It’s packed with lubricating oil that cools the gears and keeps power flowing to the rotors. If a helicopter loses oil in its main gearbox, the system will get too hot and either seize up or otherwise fail. That would lead to a loss of power in the rotor, forcing a helicopter from the sky. A helicopter that meets the run-dry standard can continue flying for 30 minutes even if there’s no oil in the main gear box — a critical feature for helicopters flying hundreds of kilometres out to sea.”
https://theaviationist.com/2020/04/3...Cu63ALQ-SNxyk1k
And........
"a deadly 2009 crash of a Sikorsky-built helicopter".......well, that's here:
Helicopter crash off the coast of Newfoundland - 18 aboard, March 2009
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