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Kuala Lumpur, Malaysia (CNN) - On Monday, Malaysia's Transport Ministry said the final voice transmission from the cockpit of Flight 370 was "Good night Malaysian three seven zero."
That's a departure from earlier language in which Malaysian authorities said the final transmission was "All right, goodnight."
he new language is routine and is not a sign of anything untoward occurring aboard the flight, said CNN aviation analyst Mary Schiavo.
But she said it does raise questions about how Malaysian officials have handled the investigation.
"Well, it speaks to credibility issues, unfortunately," she said.