As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT CABIN AUTO INOP ALT 2 APPEARED, CREW DECLARED EMERGANCY AND PERFORMED (ATB) AND LANDED SAFLEY .MTX GROUNDED A/C AND TROUBLE SHOT. MTX PERFORMED BITE TEST OF #1 AND #2 CONTROLLERS, OPS CHECK GOOD IAW B767 AMM 21-31-00,. PRESSURIZED ACFT IAW 05-51-24 OPS CHECK GOOD , REMOVED AND REPLACED CONTROL PANEL IAW B767 AMM 21-31-01 OPS CHECK GOOD. AND RETURNED A/C TO SERVICE