As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LT PACK WOULD NOT PROVIDE AIR FLOW FOR PRESSURIZATION AS CONFIGURED IAW MEL. TROUBLE SHOT IAW FIM 21-62-00, 21-31-00, 21-51-00. R & R LT RAM AIR DOOR ACT IAW MM 21-51-00. ROTABLE PARTS CHANGE WAS INDICATED TT NR 1573389 SN OFF 03134 IPC IAW ACTUATOR, RAM A OFF 29-2151-9-0011 8134 ON 29-2151-9-0011 870.