To see the latest Boeing 777 accident : click here for san francisco crash
An American Airlines Boeing 777-200, registration N784AN performing flight AA-136 from Los Angeles,CA (USA) to London Heathrow,EN (UK), was enroute at FL330 about 180nm northeast of Las Vegas,NV (USA) when the crew received a right hydraulic quantity low indication shortly followed by a low right hydraulic pressure indication. The crew shut the right hand engine (Trent 892) down, turned around and returned to Los Angeles for a safe landing about one hour later.
A replacement Boeing 777-200 registration N751AN reached London with a delay of 16.5 hours.
My personal opinion : It seems technology is advancing day by day. Back in the 90s if you had hydraulic failure , meant you were aware that there is 90% chance of not making it to ground.