As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE PERFORMING ASA T/C 78472020 ON THE #1 ENG NOTED A THROUGH HOLE IN THE HPT NOZZLE OUTER PLATFORM AT THE LEADING EDGE @ 7 O'CLOCK ALF TOTAL AREA OF THE HOLE IS 0.002. GROUNDED - YES. REMOVED ENGINE SN 896273. REF ASA SHOP W/O #1938400, ESN 896273.