What was found
DIAGNOSTICS REPORTED THE NR 2 ENGINE HAS A SHIFT IN CRUISE EGT, CRUISE FUEL FLOW, AND EGT HOT DAY MARGIN. PNEUMATIC/BLEED SYSTEM LEAKS ARE SUSPECT. ACFT GROUNDED. ACCOMPLISHED AND COMPLETED STEP 3 OF TSR, NOSE COWL ANTI-ICE VALVE OPERATION, NO DEFECTS NOTED. VERIFIED NOSE COWL ANTI-ICE VALVE FOLLOWS SWITCH POSITION. NOTE, STEP 2 ACCOMPLISHMENT NOT REQUIRED DUE TO PREVIOUS ACCOMPLISHMENT OF STEP 1 & PRSOV R & R. AS A PRECAUTION, VERIFIED NO AIRFLOW IN RIGHT WING WITH RIGHT WING ANTI-ICE VALVE IN OFF POSITION. TSR908213 COMPLIED WITH, TSR DEFERRAL CLEARED.