As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
L PACK TEMP EICAS AT FL410(<P>ITEM TRANSFERED TO DMI #149571 IAW MEL 21-51-03-01.</P> / <P>LP 1486008: PERFORMED FIM 21-51 FAULT TREE 844, NO FAULTS NOTED. PERFORMED BIT CK PACK #1 IAW AMM 21-51-14. ALL CKS GOOD, THIS CLEARS MDDR 149571.</P>)