Perth: A possible fifth signal fuelling hopes that MH370 will be found soon. This signal detection is a big hope for searchers engaged in a race against time to pinpoint “pings” from the missing Malaysian airliner’s black boxes. MH370’s data and cockpit voice recorders are due to fade, more than a month after the Boeing 777 vanished. The Perth-based Joint Agency Coordination Centre (JACC) said the latest ping was detected by an Australian air force P-3C Orion surveillance plane, which has been dropping dozens of sonar buoys into the