As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R PACK OFF EICAS MESSAGE AT TOP OF DESCENT.(<P>TRANSFERRED TO MDDR # 154863 PER MEL 21-51-01-01, CAT 'C', DUE DATE: 19OCT. DISP: DP @ 1503Z.</P> / <P>12OCT21 - LP 1313338 - ITEM # 4 - CVG - REMOVED AND REPLACED R/H PACK OVERHEAT SWITCH "S99" IAW B767 AMM 21-51-18. OPS CHECK GOOD AT THIS TIME. THIS CLEARS DMI 154863. PLACARDS REMOVED. MCC NOTIFIED.</P>)