As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 1115 RIC-MCO, CLIMBING THROUGH FL280 NOTICED CABIN ALT AT 9400FT IN AMBER AND CLIMBING. DESCENDED TO 10,000 FEET AND OBSERVED NORMAL CABIN ALT PARAMETERS. A/C REMAINED PRESSURIZED AT 10,000FT WITH A CABIN ALT OF NEG 200 AND A DIFF PRESSURE OF -4.7. TECHNICIAN PERFORMED TSM 21-31-00-810-824-A AND FOUND EMERGENCY BELLOWS FOR RT PACK TORN. REMOVED AND REPLACED BELLOWS AND TEST WAS SATISFACTORY REF AMM 21-31-00.