What-ho
Early Bristow Pumas had an, then, Aerospat team on site changing transmissions daily due to chips.
In 2003 I was told by the OGP that the 155 transmission never made it pass about 1500 hours before removal. Why? Chips.
At a CAA meeting Helikopter Service reported bearing problems on the latest Pumas where chips from an accessory gearbox could contaminate the main xmsn. They were changing boxes every 130 hours or so. Kind of like Bristow experience with early Pumas.
Makes American transmissions look pretty good.
The Sultan