What was found
INTERMTT ENG 1 OVRHT AT FL100..WENT AWAY ON ITS OWN ..RAN CHKLST NEVER REAPPEARED #1 ENG UPPER FAN FIRE DET ASSY (M1757), LOWER FAN FIRE DET ASSY (M1758), LEFT CORE DET ASSY (M1759) AND RIGHT CORE DET ASSY (M1760) PER AMM 26-11-01 DUE TO MULTIPLE SERVICE INTERRUPTIONS. THANKS. TECH SUPPORT UPDATE: THIS ITEM IS CHRONIC. SEVERAL GVI''S HAVE BEEN ACCOMPLISHED WITH NO FINDINGS AND CORE DET HARNESS WAS REPLACED, DUE TO HISTORY, PLEASE T/S PER FIM 26-10 TASK 805. IF NO DEFECTS ARE NOTED, PLEASE REPLACE THE REMOVED AND REPLACED E1 RIGHT CORE FIRE DETECTOR ASSY 26-11-01. REMOVED AND REPLACED E1 UPPER FAN FIRE DETECTOR ASSEMBLY.. REMOVED AND REPLACED E1 LOWER FAN FIRE DETECTOR ASSEMBLY. REF: REMOVED AND REPLACED E1 LEFT CORE FIRE DETECTOR REF MM 26-11-01. E1 ENGINE FIRE DETECTION OPS TEST TASK 26-11-00-710-801 IS PERFORMED ENGINE FIRE DETECTION OPS TEST PER OPS CK REQUIRED. OPS CK REQUIRED. REQUIRED BEFORE CLEARING LOG PAGE. AMM26-11-00-710-801, TEST PASSED NO FAULTS DETECTED AT THIS 1765867,