Searchers May Have Detected Another Signal From Black Box Of Mis - Northern Michigan's News Leader

Searchers May Have Detected Another Signal From Black Box Of Missing Plane

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PERTH, Australia (AP) -- Earlier today an Australian aircraft detected a signal that may be  from the missing Malaysia Airlines Flight 370.  

Right now, up to 14 planes are searching for debris.

They are also dropping buoys carrying technology that can listen for pings in the water.

So far, the pinger locator being towed behind the Ocean Shield vessel has picked up four signals.  

 They match the frequency emitted from the black box.  

 Once searchers find more evidence, they will drop the Bluefin 21, an underwater vehicle that has high tech sonar.