As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 ENGINE EGT HOT DAY MARGIN HAS NOT RECOVERED TO EXPECTED LEVELS AFTER LAST COMPRESSOR WASH. ALL OTHER PARAMETERS ARE NORMAL. COMPLETED T C 78273000, NO FAULTS LOGGED. PRE CLEAN T49.5 S1 S4 106 61 67 128. AFTER CLEANED 62 32 35 78. DURING ENG RUN AFTER 3 MIN IDLE STAB 396 416 415 407. NO FAULT LOGGED EEC BITE PASS. TSR CLEARED REF LP 6434027 FOR PLT 20 CYCLE RECHECK PER MMS 77 21 00.