The following is based on a translation from a report in Chinese media:
Some photos show the fighter jet in PLA air force coating, which indicates it has been commissioned.
However, some photos show a J-16 number 1612 in yellow testing coating, used prior to commissioning.
The aircraft has a speed reduction board on its back, which the Su-30 does not have.
Source: qianzhan.com “Disclosure of photos of PLA J-16, which seems to have delivered to Chinese air force judging by its coating” (summary by Chan Kai Yee based on the report in Chinese)
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