extended, as well as the outfitting of civil aircraft with the deployable flight recorders typically used in military aircraft. Previous to MH370, the investigators of 2009 Air France Flight 447 urged that the battery life be extended as "rapidly as possible" after the crash's flight recorders went unrecovered for over a year. After Indonesia AirAsia Flight 8501 On December 28, 2014, Indonesia AirAsia Flight 8501, en route from Surabaya, Indonesia, to Singapore, crashed in bad weather, killing all 155 passengers and seven crew on board. On January 8, 2015, before the recovery of the flight recorders, an anonymous ICAO representative said: "The time has come that deployable recorders are going to get a serious look." A second ICAO official said that public attention had "galvanized momentum in favour of ejectable recorders on commercial aircraft". Boeing 737 MAX Live flight data streaming as on the Boeing 777F ecoDemonstrator, plus 20 minutes of data before and after a triggering event, could have removed the uncertainty before the Boeing 737 MAX groundings following the March 2019 Ethiopian Airlines Flight 302 crash. Image recorders The NTSB has asked for the installation of cockpit image recorders in large transport aircraft to provide information that would supplement existing CVR and FDR data in accident investigations. They have recommended that image recorders be placed into smaller aircraft that are not required to have a CVR or FDR. The rationale is that what is seen on an instrument by the pilots of an aircraft is not necessarily the same as the data sent to the display device. This is particularly true of aircraft equipped with electronic displays (CRT or LCD). A mechanical instrument panel is likely to preserve its last indications, but this is not the case with an electronic display. Such systems, estimated to cost less than $8,000 installed, typically consist of a camera and microphone located in the cockpit to continuously record cockpit instrumentation, the outside viewing area, engine sounds, radio communications, and ambient cockpit sounds. As with conventional CVRs and FDRs, data from such a system is stored in a crash-protected unit to ensure survivability. Since the recorders can sometimes be crushed into unreadable pieces, or even located in deep water, some modern units are self-ejecting (taking advantage of kinetic energy at impact to separate themselves from the aircraft) and also equipped with radio emergency locator transmitters and sonar underwater locator beacons to aid in