i will add here... not only did the company try to hush it up (Wu actually said "(senior) management must not find out" - too late for that sunshine), but Wu actually intimidated the f/o and threatened him with his job if he did not sign the version he (Wu) had written.
The f/o is (obviously) concerned for his job... and the Argies are rallying around him. I think the whole pilot body at HKA should do the same. Not just for the f/o's sake, but for all concerned.
Seems to be a fairly obvious recurring theme here... and the first step towards a solution is the Singaporean management MUST GO.
Singaporean managers - For your own sakes and ours, get out now on your own initiative, before you're tarred and feathered and run out of town. You're running HKA in to the ground... and someone will get hurt if this continues much longer.