Virgin Australia B773 over Pacific on Nov 3rd 2014, blocked sinks

A Virgin Australia Boeing 777-300, registration VH-VPH performing flight VA-2 from Los Angeles,CA (USA) to Sydney,NS (Australia), was enroute at FL300 over the Pacific Ocean about 1300nm southeast of Los Angeles and about 1000nm west of Hilo,HI (USA) when the crew decided to return to Los Angeles due to two blocked sinks. The aircraft landed safely back in Los Angeles about 6 hours after departure.

Passengers reported a toilet was overflowing and an incredible stench developed on board. They were sitting in crap and used face masks due to the odour, some passengers vomitted.

The airline said, two sinks were blocked causing a fresh water system overflow, one of the sinks was blocked by a tooth paste cap. No human waste was leaked in the occurrence.