Images of apparently sizeable debris fields, by US Navy P3 Orion based at Naval Air Station Sigonella, Sicily, Italy.
U.S. Navy P-3 Orion Assists in Search for Egyptair Flight MS804 | U.S. Naval Forces Europe-Africa / U.S. 6th Fleet
"UPDATE 6
May 23, 2016 at 14:30 UTC
Yesterday, (May 22), U.S. Navy P-3s continued to support the search effort with two missions (6th and 7th) from NAS Sigonella. The first flight of the day (6th overall) discovered another debris field that was a
radius of three nautical miles in size. Once reported to the Egyptian on scene commander, the aircraft was sent elsewhere to search for additional debris fields. The Egyptians deployed small vessels to retrieve debris in the field they discovered. From post mission reporting and the plotting of debris fields, two confirmed debris fields have been located by U.S. Navy aircraft supporting the effort."