B-HKD,
Good eye on the picture. Pretty clear that the airplane did take out the PAPI. Although it doesn't necessarily demonstrate that they were operational at the time, just that they had been installed.
I think its safe to say that the date of the NOTAM gives away that the PAPI lights were operational.
Apologies if this has been brought up earlier in the thread ( I haven't the time to read all 27 pages tonight) but it strikes me as similar to the other 777 hull loss with BA in that they landed short. Were the cruise ambient temperatures conducive to fuel icing?
The BA -200ER had RR Trent 895 engines.
The OZ -200ER involved has PW4090 engines.
The Heat exchanger clogging up due to icing was a problem limited to the Trent engines. GE/PW looked into the design of their heat exchangers and confirmed it was a problem limited to RR