The first serial or operational machine ???
Apparently it was spotted off hainan, from huitong's page... And apparently the radar is an AESA?
Either way it's good to see the Z-8 AEW in PLA colours. I expect we'll see a bit of this helicopter as the carrier program moves ahead, and even when the "Y-7" based AEWC gets into operation with carriers the Z-8 will still have value for future LHD/LHAs or could be specialized into tracking ground targets for the army in future.