What was found
GEAR UNSAFE INDICATION WHEN SELECTED DOWN, NOSE GEAR DOES NOT ILLUMINATE, JIGGLING HANDLE AND ALL 3 COME ON. REPLACED LANDING GEAR CONTROL HANDLE IAW SAAB AMM 32-31-05 FUNCTIONAL CHECK OF EXTENSION AND RETRACTION COMPLIED WITH IAW SAAB 340 32-30-00. NO DEFECT NOTED, PN: D494-12-001, SN ON: 300/05-90, SN OFF: 215/07-88.