Indian Naval Submarine Sindhudhavaj, whilst on task for locating the missing aircraft, picked up a barrage of transmissions in a depth of 996 meters on July 6.
This information was a vital source for deployment of the Reliance vessel, M/v Olympic Canyon to localize the search.
Consequently, the unrelenting and uninterrupted search finally yielded positive results.
The state of the art Multifunctional Support Vessel (MSV) of M/s Reliance India Limited with integrated Remotely Operated Vehicle (ROV) was able to locate and recover the Flight Data Recorder (FDR) and one Line Replacement Unit (LRU) from a depth of 950 meters in a unique and first ever salvage at such depths.
"The Flight Data Recorder has been recovered from the sea. This has been recovered with the help of remote operating vessel," said SP Sharma, IG, Coast Guard (East).
The FDR could provide vital inputs towards establishing the cause of the incident. This is a major accomplishment to the unprecedented search operation which was launched about 30 days ago.
The Dornier aircraft went missing on June 8 after a routine maritime surveillance sortie along the Tamil Nadu coast.