Drones and sonar technology were deployed in Indonesia to search for a Lion Air passenger aircraft that crashed into the sea on Monday [1
There were no signs of survivors, but debris and personal belongings were collected from the water.
There are still no signs that the plane crashed 13 minutes after launch.
Officials said the Boeing 737 pilot had requested to return to Soekarno-Hatta airport just 13 minutes after the flight, shortly before losing contact with air traffic control.
A BBC technical log showed that the plane had hit Bali from Jakarta the day before.
The log showed that one instrument was "unreliable" and the pilot had to hand over to the first officer.
Lion Air CEO Edward Sirait said on Tuesday that the aircraft had been repaired before take-off.
Flight JT 610 was heading towards the western city of Pangkal Pinang on Monday, but had trouble immediately
Thirteen minutes after the flight, it suddenly accelerated and lost altitude, falling into the Java Sea, northeast of Jakarta.
People who were on boats in the area at that time reported seeing them fall from the sky.
The head of the Indonesian Disaster Bureau, Sutopo Purwo Nugroho, said on Twitter that sonar equipment would be deployed in the waters near Karawang – the aircraft's last known contact point.
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"Hopefully we can find the wreck or hull this morning," said Soerjanto Tjahjono, head of the Indonesian road safety panel, Reuters news agency.
Investigators are also looking for the aircraft's black box recorder, which will provide vital flight data.
Search parties have taken body parts out of the water.
National Search and Rescue Leader Muhammad Syaugi told the local media 10 body bags were already filled and would be brought to Jakarta for identification.
Fourteen debris-filled bags – including shoes, a wallet, and various garments – were collected along with leftovers.
Another search official, Yusuf Latif, said earlier that it would be "a miracle" if survivors were found.
Sutopo also warned against counterfeits that have spread on social media, including images that users claimed had been taken by passengers in the last moments before the plane crashed.
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In a statement, Boeing expressed sympathy for the victims and families and said she was "ready to provide technical assistance in investigating accidents."
Indonesia, a vast archipelago, relies heavily on air travel but many of its airlines have a poor safety record.
There have been issues related to security and poor management in the past and has been closed to European airspace by 2016.