As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING APPROACH TO RUNWAY 22L AT MHR, WHEN LANDING GEAR WAS LOWERED, RIGHT PACK SHUT OFF AND LOC FAILED. MISSED APPROACH EXECUTED, GEAR CYCLED UP AND DOWN AND EVERYTHING SEEMED TO WORK AGAIN. MAINTENANCE AT MHR COMPLIED WITH MCDP GROUND TEST 30. NO CURRENT FAULTS NOTED. A/C RELEASED TO CAT 2 CHECK CAT 3B.