As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BWI/JAX - FLT 2316 - CABIN LOST PRESSURE IN-FLIGHT. NO INDICATOR OR WARNING HORN. FORWARD CARGO DOOR LIGHT ILLUMINATED. DIVERTED TO DCA. REPLACED PRESSURIZATION AMPLIFIER, REPAIRED BROKEN GROUND WIRE FOR INDICATOR. HORN NOT INSTALLED ON THIS A/C. (X)