What was found
ETOPS - ENG 1 "EPR MODE FAULT" DISPLAYED ON DESCENT. PERFORMED TSM 73-21-00-200-804-A FOUND NO DEFECTS ON P50 AIR TUBES. REMOVED AND REPLACED P50 EEC LINE RAN ENGINE NO FAULTS FOUND. BITE TEST OF EEC OK. PERFORMED AIRFLOW & PRESSURE CECK OF ENG #1 P20 & P50 AIR TUBES ANDFOUND NO FAULTS PER AMM 73-21-00-200-802-A & 73-21-80-200-804-A. PERFORMED TSM 73-21-71-810-934-A. INSPECTION, RESISTANCE CHCKS GOOD. NO SHORTS. COMPLETED UP TO SECTION 4.A. PER ENGINEERING, REMOVED & REPLACED EIVMU 1 PER AMM 73-25-34. BITE TEST OK. 08/28/2024 19194. ENGINE IDLE RUN GOOD. NO DEFECT NOTED. FUNCTIONAL CHECK FLIGHT FOR ENG 1 MODE EPR FAULT COMPLETED SATISFACTORILY. NO FAULTS NOTED.