As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WITH LT PACK OPERATING NORMALLY AND ACFT CLIMBING AT 1200 FPM, CABIN WAS CLIMBING AT 800 FPM, RECEIVED CABIN ALT CAUTION MSG AT 8500 FT & CABIN ALT WARNING AT 1000FT. APPEARS ACFT NOT HOLDING PRESSURIZATION. FOUND LT ACM PACK OUTLET GASKET BLOWN, R & R GASKET IAW AMM 21-51-62, LEAK CHECK GOOD. C/W`D OPS CK OF CABIN PRESSURIZATION IAW AMM 21-31-00. OPS CK GOOD.