http://www.auto-motor-und-sport.de/form ... 35305.html
I don't speak German so I put it through a translator
" No oil in the gear
Because the gears may be opened in her application cycle by five runnings only under supervision of the FIA, Red Bull to Singapore had to wait to examine the innards of the gear of Webber. What the engineers saw, has not liked them. The switch claws were worn excessively. A cirque voucher splinter had got lost in the differential and there had apparently damaged an oil management. In the gear was almost no more oil. A miracle that Webber came to Monza in the aim.
Originally wanted Red Bull which drive damaged power transmission on Friday once again to get to know more about the backgrounds of the damages. However, when one saw in which state the switch box was, one saved this practise. Because in Singapore other translations than in Monza are used, all drivers get already other way wheels and switch claws from the whole contingent. However, as long as one does not know what has caused the damages, this is no guarantee."
The title is saying 'Webber had gigantic luck in Monza' so it seems as though the gearbox was damaging itself pretty badly.
Is the article saying that because different gear ratios are used in Singapore, the damaged parts can be changed fine?
The final part of the article just says that they haven't had time to open Vettel's gearbox under supervision from FIA yet