SHOOT: It's a good sign, but they're also saying they can't absolutely confirm that what they're hearing are from black boxes. They could be coming from large black objects called whales. This remark turns out to be somewhat correct - read here.
PARIS (Reuters) - Signals from the flight data recorders of an Air France airliner that crashed into the Atlantic killing all 228 people on board have been located, Le Monde newspaper said on its website on Tuesday.
"It's not the first time sounds have been heard and we will be verifying this with all the equipment we have at our disposal," she said. "The search is continuing and we haven't found the recorders."
Locator beacons, known as "pingers," on the flight recorders send an electronic impulse every second for at least 30 days. The signal can be heard up to 2 km (1.2 miles) away.
French vessels involved in the search operation include a nuclear submarine with advanced sonar equipment and a research ship equipped with mini submarines.