Malaysia Airlines Flight 370 7 March 2016, the day before the second anniversary of the disappearance, twelve Chinese families with relatives on board the missing aircraft filed a lawsuit in Beijing, one day before the deadline for pursuing litigation against the carrier. In Kuala Lumpur, lawyer Ganesan Nethi reported that he had filed a joint lawsuit on behalf of the families of 32 passengers on 3 March 2016, explaining that most were Chinese, along with an American and a few Indians. Some Chinese boycotted all things Malaysian, including holidays and singers, in protest of Malaysia's handling of the Flight 370 investigation. Bookings on Malaysia
Timeline of Malaysia Airlines Flight 370 soon discounted and a search of a remote region of the southern Indian Ocean, led by Australia, began on 18 March. On 24 March, Malaysia Airlines and Najib announced that the flight had ended in the Southern Indian Ocean without survivors. In early April, an intense effort—the "acoustic search"— was made to detect the acoustic signals generated by underwater locator beacons (ULBs, also known as "pingers") attached to the flight recorders on Flight 370. After immersion in water, the ULBs emit an acoustic signal (also called a "ping") at a specific frequency once per second and have a battery life