The US Navy's underwater black box locator will be abandoned in the next few days if credible new signals are not picked up from possible emergency beacons in search for missing MH370.
US Navy Captain Mark Matthews told ABC News that when the time is right the move will be taken.
He said that no credible signals have been heard since. While acknowledging the pinger locator search will soon end without new leads, he said the team wants a few more days to try and narrow the underwater search area.
Matthews is in charge of the TPL-25 (the Towed Pinger Locator) and the Bluefin-21 underwater autonomous vehicle currently on board the Royal Australian Navy ship Ocean Shield.
Last Saturday, the TPL-25 detected 'pings' consistent with beacons attached to black boxes - aircraft flight data and cockpit voice recorders. Two more sets of pings were heard Tuesday, the report added.