As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RIGHT PACK TRIPPED AT FL 280 DURING CLIMBOUT. WOULD NOT RESET. RIGHT RAM DOOR FULL OPEN LIGHT ILLUMINATED APPROXIMTLY ONE MINUTE EARLIER. ACFT GROUNDED. COMPLETED EA 900ER-21EA-19842, REPLACED THE LT STANDBY TEMP CONTROL VALVE IAW AMM 21-51-11/401. OPS NORMAL.