As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: CABIN PRESSURIZATION FLUCTUATIONS AT CRUISE 600 FT/MIN. **SUPPLEMENTAL REPORT FOR AALA202201106914: REPLACED #2 CABIN PRESSURE CONTROLLER AND ACCOMPLISHED A SATISFACTORY OPERATIONAL CHECK PER AMM 21-31-34 ** (CLOSED)