Malaysia Airlines Flight 370 and replaced it with Flight 318 (MH318) beginning 14 March. This follows a common practice among airlines to rename flights following notorious accidents. The flight—Malaysia Airline's second daily flight to Beijing—was later suspended beginning 2 May; according to insiders, this was due to lack of demand. Malaysia Airlines was given US$110 million from insurers in March 2014 to cover initial payments to passengers' families and the search effort. In May, remarks from lead reinsurer of the flight, Allianz, indicated the insured market loss on Flight 370, including the search, was about US$350 million. At the time of Flight 370's disappearance,
Malaysia Airlines Flight 370 search of the sea-floor near the detections was carried out between 14 April and 28 May without any sign of Flight 370. In a March 2015 report, it was revealed that the calendar life of the battery for the ULB attached to Flight 370's flight data recorder had expired in December 2012 and may not have been as capable. In late June 2014, details of the next phase of the search were announced; officials have called this phase the "underwater search", despite the previous seafloor sonar survey. Continued refinement of the analysis of Flight 370's satellite communications identified a "wide