As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NUMBER 1 ENGINE EGT REACHED 648 DEGREES ON CLIMBOUT. 14TH STAGE CONVERTER VALVE WAS REPLACED DUE TO MESSAGES. ON THE FOLLOWING FLIGHT THE ENGINE HAD HIGH EGT AT TAKEOFF AND RETURNED TO FIELD. CONVERTER VALVE AND THE 14TH STAGE BLEED VALVE (BEANPOT) WAS REPLACED. ENGINE CHECKED GOOD AFTER THIS. SHOP FINDINGS: SERVO VALVE ON CONVERTER VALVE FAILED. 14TH STAGE BLEED VALVE (BEANPOT) CHECKED GOOD.