Greetings to all.
I am trying to solve this same problem, but ...
I plugged the magsafe in with power
The magsafe sparked and stopped working.
I would need the schematic and the board view file, from the electronic board: DC-In, USB, Audio jack, for the mac air A1466 2015.
I have the: J113 820-00165.brd, but it doesn't include this part.
Tanks.