Anyone with some Liaoning stories like the recent one from the Dwight D. Eisenhower? I find it hard to believe there hasn't been accidents in the last few years, because no matter how careful Liaoning's crew is, accidents will happen.
There probably will have been accidents on Liaoning, but they probably wouldn't be widely reported. This isn't necessarily a surprise, because all activities on Liaoning have typically been very controlled in terms of disclosure. The few pictures and videos we get are only a small peek into what they've been doing, and serve as a floor rather than a ceiling for us to estimate how far they are.
That said, if you were in China and able to read Chinese, I expect if you carefully checked issues of Naval and Merchant ships which talked about Liaoning, they might print subjects.
China's niche print media for military, naval, air force and science subjects typically print more detail than internet and TV media.
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Also, at this stage the Navy I think is being very meticulous in training its pilots and deck crew for flight operations, so it may well be that there have been no major accidents thus far. Such accidents may become more prevalent as the Navy becomes more confident in carrier operations overall and engage in higher temp operations regularly which leads to a higher risk of accidents despite higher overall proficiency.