Hi,
Just done a repair to a Sound Devices SD302 headphone socket. Was a fairly easy job. SD supplied the part to do the fix. Part numbers are on the pics.
Remove side panel and XLRs from the SD302 and you should have enough space to work. The original socket had its PCB connector glued to the
receptacle on the board. This glue comes off with a sharp flat driver. simply install the new PCB connector and do the reverse of the dismantle to re-assemble.
Only thing I had to do was trim the heatshrink on the new socket to make it fit better.