What was found
THE PILOT REPORTED THAT HIS UNDERCARRIAGE WARNING LIGHT FOR THE LT MAIN GEAR DID NOT GIVE A SAFE INDICATION WHEN THE GEAR WAS SELECTED DOWN. (GREEN INDICATIOR LIGHT WAS NOT ILLUMINATED) THE ACFT WAS PLACED ON JACKS AND MX CREW DISCOVERED THAT CLEVIS PIN, PN MS20392-1C21 WAS BROKEN. THE CLEVIS PIN WAS REPLACED AND THE UNDERCARRIAGE WAS GIVEN A RETRACTION TEST THROUGH 3 CYCLES AND DETERMINED THAT THE UNDERCARRIAGE WAS FUNCTIONING PROPERLY.