The Christmas Island Carley float

What does the Carley float found at Christmas Island in February 1942 with a body aboard suggest?

Its connection to Sydney is left unresolved in this exchange. An aircraft origin is briefly suggested without being established.

A viewer raises the Carley float found at Christmas Island in February 1942 with a decomposed body aboard. The reply does not settle its connection to Sydney and briefly suggests an aircraft origin. That suggestion remains unverified in this exchange. A single float also leaves the wider fate of the crew unresolved.