A log-book entry is still required.
Of course a flight log entry was made with an ASR as well. In other carriers it would have been a non event in the event of a Vmo exceedence of less than 20 kts. The KAL B777-200s with those PW4090 donks suck big time in turbulence and windshifts.
The LIP who stood up for me even suggested that KAL revisit Boeing autoflight algorithms wrt the PW engines; instead of appreciating good inputs they did him in with the connivance of some " alcartoon " douchebags.
Now I suppose almost everyone in KAL is so
scared of any tiny speed exceedence that at the first sign of a bump, they wind back the speed to .82 M without thinking. Absolute baboon operating culture!