As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PDIS 690 21-31 2248721 27NOV19 PHL CLOSE PACK 2 VALVE CLOSED MSG ON CLIMBOUT WITH PACK 1 VALV E CLOSED MSG AFTER APPOX 2 MINS. BOTH UNABLE TO CLEA R WITH QRH. PACK 1 CLEARED BELOW 100K FACT 27NOV19 10:06 PHL WHEN TROUBLESHOOTING FOUND BEHIND AC/PNEUMATIC PANEL CONNECTOR J7128 NO PROPERLY CONNECTED. RESECURED AS REQUIRED AND PERFORMED #1 AND #2 COOLING PACK OPS CHECK GOOD IAW 21-51-00, OK FOR SERVICE