What was found
CREW REPORTS "R ENGINE FIRE INDICATION SYSTEM". MAINTENANCE REPORTS "COULD NOT DUPLICATE DISCREPANCY ON GROUND. INSPECTED RH ENGINE FOR SIGNS OF FIRE AND PERFORMED MULTIPLE ENGINE POWER RUNS. NO DISCREPANCIES NOTED. INSPECTED ENGINE FIRE DETECT SENSOR WIRE FOR CHAFING, KINKS, WIRE ROUTING AND GENERAL CONDITION. PERFORMED FUNCTIONAL INSPECTION OF SENSOR WIRE BY OPENING INDIVIDUAL FIRE SENSOR WIRE CONNECTOR IN THE ENGINE COMPARTMENT AND MEASURING MV IAW SAAB 26-11-00-01AMM. NO DISCREPANCIES NOTED. PERFOMED SAME TEST AT FIRE DETECT CONTROL BOX IAW 26-11-00-720-801AMM. NO DISCREPANCIES NOTED. PERFORMED OPERATIONAL TEST OF THE FIRE DETECTION SYSTEM AND FOUND "R ENG FIRE DET FAIL" DOES NOT ILLUMINATE ON EICAS. R&R FIRE DETECTION CONTROL UNIT PN:25000020-22 SN:117 IAW SAAB 26-11-15-400-801AMM. PERFOMED POST MAINTENANCE ENGINE RUNS AT VARIOUS POWER SETTINGS. NO DISCREPANCIES NOTED."