Originally Posted by
EXDAC
However, I am not aware of any PA-28 structual failures that were attributed to wing corrosion.
Don't recall any in-flight corrosion failures but there were a few PA-28 loose wing discoveries on the ground due to corrosion that would have led to an in-flight failure had they not been found.
SB 1244 and an
FAA SAIB were issued subsequent to those findings. Fortunately the Piper design can withstand excessive corrosion in key areas.
Originally Posted by
N707ZS
Is there any similarity in the Pa 25 and Pa 28 wing.
No. The PA-25 used top braced PA-18 Super Cub wings which became metal-covered in later models. And doubt you'll ever see a report out of MX on that PA-25 accident.