As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN GEAR RETRACTION WAS ATTEMPTED, THE GEAR LIGHTS INDICATED A ''RED'' A AND A ''GREEN'' A FOR THE NOSE GEAR. GEAR HANDLE WAS PUT BACK DOWN. INDICATION WAS ALL ''RED'' EXCEPT NOSE A RED OUT AND NOSE GREEN A ON. GEAR LOWERED BY ELECTRICAL OVERRIDE SYSTEM. RETURNED TO LAX. REMOVED AND REPLACED LANDING GEAR CONTROL BOX. OPERATED 12 TIMES. OPS CHECK GOOD.P/N ON: 120-38594-401 S/N ON: 120348 P/N OFF: 120-385594-501 S/N OFF: 120334