What was found
SUPPLEMENTAL SUBMISSION TO HALA2023032400060. RESOLUTION UPDATED. ETOPS - BLOCK TURN BACK, ENG 1 EGT OVERLIMIT. PER ENGINEERING. PERFORMED TSM 71-00-00-810-885-A STEPS 4.A(3) & (4). NO FAULTS NOTED. PERFORMED TSM 71-00-00-810-861-A STEP 4.A(15) & (21). REMOVED & REPLACED #1 ENG EEC PER AMM 73-21-01-400-801-A UP TO STEPS 4.A.(6). PERFORMED #1 ENG EEC AMM 73-21-01-400-801-A STEPS 4. A(6) TO 4.B.3. REPLACED #1 ENG REF W/O# 246121.