Originally Posted by
ManaAdaSystem
Never seen anything like this before?
The failure mode looks very similar to this Jet Airways B738 in April 2015:
Though presumably the cause of that one
"The LH Aft landing Gear trunnion pin failed due to overload following fatigue growth. Crack initiation was in the heat affected area where excessive grinding was done at the time of overhaul. Initial crack growth is charterized by intergranular cracking (assisted by hydrogen embrittlement mechanism) until fatigue took over."
doesn't apply to a 4-month-old aircraft.
Investigation Report on Jet Airways B 737-800 Aircraft involved in landing gear collapse due improper overhaul of trunnion pins