What was found
AIRCRAFT RETURNED TO PLATFORM DUE TO DURING TAXING, THE RT ENG FAIL LIGHT TURNED ON WITHOUT ABNORMAL INDICATIONS & DURING THE RT ENG SHUTDOWN, THE EGT EXCEEDANCE WAS SHOWN. PERFORMED FIM 73-11 TASK 815 & FIM 73-22 TASK 815 & 820 PROCEDURES & IDLE POWER OPERATION, NO CONFIRMING FAILURE. AS A PRECAUTIONARY ACTION, THE P53 & P3B WERE CLEANED. RT EEC GND TEST & ENG FULL DRIVEN ACT TEST NR 14 WERE PERFORMED IAW AMM 73-22-00, RT PRSOV CONTROLLER LIES & SPAR VLV WERE VERIFIED IAW AMM 72-10-00. ENG RUN WITH TAKEOFF POWER WAS PERFORMED IAW AMM 71-00-00, TESTED CORRECT. THE SPAR VLV ACTUATOR WAS REPLACED IAW AMM 25-22-02 & TASK 28-22-00-710-801. THE HMU WAS REPLACED IAW AMM 73-21-14 & BY MSG 73-31802 & FIM 73-22 TASK 815 STEP 7, BORESCOPE INSPECTION TO HPT STAGES 1-3-9 WERE PERFORMED IAW AMM 72-00-00, NO DAMAGES WERE FOUND.