Great vid Matthew, thanks for sharing.
As others have pointed out OJA is a standard 747-400 and not an ER version. All of QF's ER aircraft have registrations in the range of OEE - OEJ.
I have seen one video recreation in FSX which was really close to the mark but it would be great to see a few more of them.
If anyone is after the details of the flight to re-create it let me know.
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