What was found
ON FIRE TEST NR 2 ENGINE FIRE TEST FAILED. ACFT GROUNDED. PERFORMED NR 2 ENGINE/APU FIRE DETECTION MODULE BITE PROCEDURE, REF FIM 26-10, TASK 801. NO FAULTS FOUND. ACCOMPLISHED LOW DETECTORS RESISTANCE, REF FIM 26-10, TASK 810. FOUND M1757 UPPER FAN DETECTOR WITHIN RESISTANCE LIMITS OF 5921 OHMS. FURTHER INSPECTION FOUND DETECTOR M1759 HAD LOOSE HW. TIGHTENED AS REQUIRED. PERFORMED DETECTOR OPS TEST REF AMM 26-11-00. SYS CHECKS NORMAL.