Originally Posted by
wlau
From what I read, the door plug on the MAX-9 is the same or very similar design as to the one on 900ER. Delta was the last operator to take in a bunch of 900ER in 2019 just before the pandemic. Whether a design issue or an assembly quality control issue, I think the FAA (or even Delta itself) should ground the 900ER as well for inspection. On medium haul, it's hard to stay away from 900ER... Safety needs to be #1.
Based on the timing of the failure versus the age and cycles of the plane, I think 900ERs are going to be safe from whatever defect is involved. I'd be shocked if this location hasn't already been inspected at least once on the entire 900ER fleet already. Assembly issues would be caught on inspection #1, and if they existed on 900ER it would be pretty damning if it showed up again on MAX9.