As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L PACK TEMP EICAS IN CRUISE COMPLIED WITH QRH AND OPERATED IN STBY-N MODE. TRANSFERRED TO DMI 152428 PER MEL 21-51-03-01 CAT C DUE DATE 03SEP21. PLACARDS INSTALLED. REMOVED AND REPLACED LT PACK TEMP RELAY K2021 IAW 21-51-00. OPN CK GOOD . ..REF LOGPAGE 1402269 PDX 27 AUG21,, R/R L PACK TEMP RELAY PER AMM 21-51-00 OPS CKS GOOD.