My APM has been acting up lately, on mission planner everything seems ok but when i fly it it acts weird by going in wrong directions, confirmed this by a loaned APM by Cyberhack. I doubt either my 3.3v reg (shows correct voltage with s multi-meter) or the MPU chip is failing.

Cannot seem to find these components at Lamington road. If any one knows where i can get these please let me know, i have SMD station etc an can replace these only if i can lay my hands on them. Parts I'm looking for are MPU-6000 and TPS79133.

Thanks in advance.