Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Communication Breakdown
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural FAR; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem
Company Policy; Human Factors; Procedure
At XA:18 Dispatcher sent ACARS stating Inaccessible Dangerous Goods not on paperwork in position XX. 3KG Class 2.2 and 84KG Class 9; 39KG dry ice.  Supervisor notified.  [The cause was due to] Ramp [Personnel] did not list Inaccessible Dangerous Goods on paperwork. Ramp needed to track Inaccessible Dangerous Goods better.
Received an ACARS message from Dispatcher stating they found some Inaccessible Dangerous Goods that wasn't included in DG paperwork in 3L that was class 2.2 & 9. A few minutes later received another ACARS message with the amounts of each class. The last message stated Dispatcher had contacted the Duty Officer and he recommended crew fill out report. [The error was caused by] someone [that] didn't follow procedure. Follow procedures [more carefully].
Air Carrier flight crew reported Dispatch notification of undeclared Hazmat shipment onboard. Missing Inaccessible Dangerous Goods information was sent to flight enroute.