It appears the detached C-40A 165830 from VR-59 was replaced by VR-58 C-40A 165834 on the 04th March.
From a Japanese website,photo evidence of a E-2C change,as 165813(ex NG-600 VAW-112) is shown in VAW-115 markings as NF-600.Is is possible there have been other Hawkeye swaps.