As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) RH GEAR FAILED TO RETRACT AFTER TAKE OFF, ATB PERFORMED MAINTENANCE FOUND MLG SELECTOR VALVE WAS FAULTY - COLLAPSED BYPASS VALVE FILTERS, RESTRICTING/STOPPING FLUID FLOW. R&R OF THE MLG SELECTOR VALVE C/W , LANDING GEAR OPS CHECK OK (TC# 20190529013)