Originally Posted by
charlieDontSurf
Why does the EASA-AD include more checks than the bulletin from Airbus?
Probably because they feel that more checks are needed that those recommended by Airbus. All of which points to the consideration of a number of failure scenarios.
The EC225 and AS332L2 MGBs share a lot of commonality. The major difference is the flared housing on the 225 MGB vs the conical housing on the 332. The main module is very similar, and the epicyclic is effectivley the same on both types. Given the commonalities AS332 MGB/epicyclic failures shouldn't be discounted.