As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER GEAR RETRACTION, BOTH RED AND GREEN A-SYSTEM NOSE LIGHTS REMAINED ILLUMINATED. PRESS TO TEST DISPLAYED ALL B-LIGHTS ON AND ONLY A-NOSE LIGHTS ON. ATTEMPTED TO CYCLE GEAR WITH NO RESPONSE. PERFORMED MANUAL ELECTRIC OVERRIDE QRH PROCEDURE SUCCESSFUL. REMOVED AND REPLACED A-HARNESS AND PROX SENSOR. CYCLED GEAR SEVERAL TIMES. OPS CHECKED GOOD. P/N ON 120-4125-001, S/N ON T99928.