The reason that the corrosion wasnīt discovered was that the failed part wasnīt supposed to be inspected before sometime in the future.
If the failed part hasnīt been disassembled, how can the non-standard grease cause the corrosion of the threads?
Maybe thereīs other reasons, except for an inspection, to disassemble the part but then it seems to have been done on all SAS Q400īs.
If it happends frequently, maintenance personell should have seen the corrosion before the part failed.
Is the info about the non-standard grease just Bombardier blowing smoke?
Can someone who has read the Bombardier info, tell us if the non-standard grease was used before or after the gear collapses?
It would be an elegant solution if SAS replaces the Q400īs with CRJ 700-900, both for SAS and Bombardier. The decision is supposed to be taken on a board meeting today, monday.