Australian ship Ocean Shield towing a pinger locater in the southern Indian Ocean yesterday reacquired two signals after earlier detecting two on Saturday.
All of the four "pings", heard possibly from the black box of the ill-fated Malaysia Airlines Flight MH370, have been recorded within approximately 27 kilometres of one another.
"Ocean Shield has been able to reacquire the signals on two more occasions, late yesterday afternoon and later last night," Angus Houston, head of the Joint Agency Coordination Centre which is leading the search, said today.
The new information has narrowed the search area to 75,000 sq km from yesterday's 77,580 sq km area.
In another major development in the search for the plane, Australian authorities analyzed the signals picked up on Saturday and determined that they were not natural occurrences, but likely came from specific electronic equipment. Some marine life make similar sounds.
"They believe the signals to be consistent with the specification and description of a flight data recorder," Houston said.
"Hopefully in a matter of days, we will be able to find something on the bottom that might confirm that this is the last resting place of MH370," Houston said.
He said they were not yet at the point of deploying the underwater autonomous water vehicle.
"The better Ocean Shield can define the area, the easier it will be for the autonomous underwater vehicle to subsequently search for aircraft wreckage," he said.
Finding the black box is crucial for knowing what happened on March 8 when the Beijing-bound Malaysia Airlines Boeing 777 flight MH370 with 239 people, including five Indians, disappeared under mysterious circumstances.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
