What was found
ENG1 OVHT DOESNT ILLUMINATE DURING TEST REQUEST MEL FOR #1 ENG FIRE LOOP B. LOOP A TESTS NORMAL. HAS HISTORY. MEL 2602C PREVIOUS DEFERRAL REOPENED SEE L/P 9541792 FOR ENG #1 LOOP B REOPENED FOR FURTHER TROUBLESHOOTING PER TOMCENGINE 1 OVERHEAT LIGHT DOES NOT ILLUMINATE DURING FIRE TEST REQUESTING PLACARD ON ENGINE 1 LOOP B PLACED LOOP B ON MEL. PANEL, CONTROL, OFF 29-2615-9-0001 0612 ON 29-2615-9-0001 2970 PERFORMED FIM TASK 26-10 TASK 810 AND REPLACED FIRE OVERHEAT DETECTION MODULE CONTROLLER IAW 26-10-01 ,OPERATIONAL TEST PASSED NO FAULTS IS FOUND IAW MM 26-11-00-710-801 . PERFORMED FIM TASK 26-10 TASK 810 AND REPLACED FIRE OVERHEAT DETECTION MODULE CONTROLLER IAW 26-10-01 ,OPERATIONAL TEST PASSED NO FAULTS IS FOUND IAW MM 26-11-00-710-801 . ENG. AND APU FIRE/OVHT TEST OPS CHECKS GOOD AFTER RPL OF APU AND ENG. FIRE DET PANEL AND ENG/APU FIRE DET. MODULE.