As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ENROUTE CABIN ALTITUDE WARNING. CREW DECLARED EMERGENCY AND DESCENDED AT DESTINATION KIAD. MAINTENANCE FOUND WATER IN DOOR SEAL AND IAW CESSNA AMM BLEW OUT WATER FROM DOOR SEAL SUPPLY LINE. OPS AND LEAK CHECKED AND FOUND NO FURTHER DISCREPANCIES. SDR IAW 14 CFR 135.415(A)(16).