Map of the towed pinger locator search and sonar survey conducted between 4 April and 28 May 2014 as part of the search for Malaysia Airlines Flight 370.
Own work

Australian Transport Safety Bureau – MH370 – Definition of Underwater Search Areas
Figure 12: Ocean Shield TPL search coverage 04-14 April (pg. 13; source: Phoenix International)
Figure 14: Ocean Shield AUV coverage 14 April-28 May 2014 (pg. 15; source: Royal Australian Navy)
Background: Whiteway, T., 2009. Australian Bathymetry and Topography Grid, June 2009. Scale 1:5000000. Geoscience Australia, Canberra. https://dx.doi.org/10.4225/25/53D99B6581B9A
Released under Creative Commons Attribution 3.0 Australia License; however that file is contour lines which in this particular area is derived from NASA ETOPO2v2 data that is in the public domain. I think because this is factual bathymetric data and because it is not much of a difference from a public domain source, that the information used is not subject to a copyright claim by GA (this tiny excerpt; the full version of that file involves enough creativity and other data sources to be subject to the copyright claim.)
AHeneen