In response to Bobbysy at #427
Of course it can be repaired! But would the repair be economically viable, I think not.
The aircraft was recently off a 'D' check at CWL, which represented a substantial investment by the airline to keep NLL in service for a further 3.5 yrs, when it was due to be gracefully retired.
The damage sustained to the forward spar & lower skin plank, though not referenced in the SRM, would attract an achievable Repair Scheme from Boeing.
The Qantas 744 incident at BKK in 1999 is representative of the dilemma facing BA and it's insurer's. In the QF case, the a/c was an economic write-off, but to protect QF from a potential hull loss smear on their blemish free record, they took the decision to repair, and did so successfully (btw that a/c was finally scrapped in 2012).
In the case of NLL (poor old girl) the situation is slightly different, the airframe being much older than the QF.
The damage is beyond a 'quick patch & ferry', so it looks as though NLL will end its days in JNB! If you take a close look at the photo at #32, not only will you see a rucksack hanging from the l/edge, but you will also see visible brickwork embedded into the fwd spar, plus a rather meaty ripple in the lower skin plank.
Also, typing G-BNLL into the AAIB database shows that the 'old girl' has 'some previous form', so maybe it is time to put her to rest!