As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ATB - AFTER TAKEOFF LANDING GEAR FAILED TO RETRACT. ACOCMLPISHED ECAM PROCEDURE "L/G" RETAINER FAULT" FOLLOWING THAT THE ECAM DISPLAYED A GEAR RETRACTION INHIBITED MESSAGE.CHECKED FOR 28 DC LT SEL VLV 3GA CONTACT PIN B CHK GOOD WITH GEAR HANDLE UP. CHECKED FOR GROUYND AT SEL VLV 3GA CONTACT PIN C- CHK GOOD. SOLENOID WINDING AT VLV 3CA CONTACTS B TO C FOUND TO BE OK. EXERCISED GEAR HANDLE TO SIMULATE FAULT NO FAULT NOTED. REF 55M 32-31-00.