As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT NR 6552 - IAD-SWF - DURING CLIMB-OUT, RETURNED TO IAD DUE TO THE RIGHT ENGINE EGT FLUCTUATING 30 TO 40 DEGREES. AIRCRAFT LANDED AT IAD WITH NO FURTHER INCIDENTS. MAINTENANCE REPLACED THE RIGHT ENGINE EGT SOFT HARNESS. OPS CHECKS GOOD. AIRCRAFT WAS RELEASED AND APPROVED FOR RETURN TO SERVICE. (M)