Malaysia Airlines Boeing spokesman says Dean comments on pings are `` premature '' The pings have been at the center of the search for weeks . The new development comes as searchers wrap up First phase of their efforts . Navy 777 disappeared in weeks .
Navy spokesman says Michael Dean 's comments on pings are `` premature '' The pings have been at the center of the search for weeks . The new development comes as searchers wrap up first phase of their efforts . Malaysia Airlines Boeing 777 disappeared in March .