As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FIELD ELEVATION SET AT 200 FT', AIRCRAFT LANDED PRESSURIZED (2.0) PSI. USED MAN/DUMP BUT COULD NOT DEPRESSURIZE EVEN AFTER ENGINE OF, FINALLY DEPRESSURIZED. REFERENCE DAYJET WORK ORDER 1425, NRI 1. REMOVED AND REPLACED PRIMARY AND SECONDARY OUTFLOW VALVES IAW EA500 AMM 21-30-12 AND 21-38-13. OPS CHECK GOOD.