If you kill phantom mid-air, corpse freezes in place without falling to ground (had this happen a few times so not a one-off):
[7310.06] Log: Log file open, 03/26/14 23:04:02
[7310.06] Log: Dumping BugIt data chart at 2014.03.26-23.04.02 using build 8710 built from changelist 31970
[7310.06] Log: MapName: OBJ_Whitechapel
[7310.06] Log: Description:
[7310.06] Log: BugItGo 9259.5840 20904.6465 1574.1500 665 -16529 0
[7310.06] Log: ?BugLoc=9259.58,20904.65,1574.15?BugRot=665,-16529,0
[7310.06] Log: —=== GameSpecificData ===—
[7310.06] Log: Log file closed, 03/26/14 23:04:02