As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LANDING GEAR WAS SELECTED UP, 3 RED "LT, NOSE, RT" WERE ANNUNCIATED WITH THE LANDING GEAR DISAGREEMENT LIGHT. RAN APPROPRIATE RED ADVISORY LIGHT CHECKLIST AND THE ALTERNATE EXTENSION CHECKLIST. WHEN THE GEAR WAS SELECTED DOWN 3 GREEN WERE ANNUNCIATED. RETURNED TO FIELD. LANDING UNEVENTFUL. REPLACED NLG STRUT ASSY, LANDING GEAR OPS CHECKS GOOD. RETURNED TO SERVICE.