Offshorebear
There was no problem before the last few years. The reason is that previously the gearbox shaft was different; the part No was 331 something as opposed to 332 something. Super Puma 332Ls were fitted with the old shaft and those that still have them are not affected. Those that were replaced with the new shaft and all 332L2s and 225s that are fitted with the new shaft are under investigation.