Shanghai Cargo at Southend

[HZ123]

737 Shanghai has been at SEN for a number of weeks and is undergoing engine tests at this time. Can somebody tell me why it has a TF and a B registration, it has been resprayed into Shanghai Cargo so I assume that is where it is bound, but why with TF registration as surely they cannot be using that AOC.

[OLNEY 1 BRAVO]

It's an ex Icelandair aircraft that is going to Shanghai Cargo. I believe it was resprayed at Norwich and is at Southend for some maintenance work prior to delivery to China.

[BRISTOLRE]

Wet leased TF-FIE from Icelandair to Shanghai Airlines Cargo.