B737 flight crew reported undocumented hazmat cargo loaded on aircraft with no flight crew notificat...

Attributes
ACN	1618757
Time
Date	201902
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B737 Next Generation Undifferentiated
Operating Under FAR Part	Part 121
Flight Phase	Parked
Flight Plan	IFR
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument
Experience	Flight Crew Last 90 Days 200 Flight Crew Total 25000 Flight Crew Type 14000
Person 2
Function	First Officer Pilot Not Flying
Qualification	Flight Crew Multiengine Flight Crew Instrument Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 134 Flight Crew Total 15000 Flight Crew Type 7919
Events
Anomaly	Deviation - Procedural Published Material / Policy Deviation - Procedural Weight And Balance Deviation - Procedural Hazardous Material Violation

Narrative:

After first officer (first officer) finished the walk around he said he had taken a picture of something that was being loaded onto the aircraft and asked if I had ever seen this before. It looked like a small trash can on a small pallet; wrapped in plastic. He said it was labeled 'cryogenic medical supplies'. Preliminary dg (dangerous goods) report had said no dg on this flight. I went down to the ramp to see what this was. There were 3 of these containers each was marked 'cryogenic'. Dispatcher was called. He talked to load planner; neither had any record of dg to be loaded. Called [station] operations; they called back and said there was no paperwork on these containers; therefore; they were being removed from the aircraft. I went downstairs to the ramp; talked to the ramp supervisor and saw that they had been removed. First officer should be commended for his diligence. If he hadn't taken that picture I would have never known.

Original NASA ASRS Text

Title: B737 flight crew reported undocumented Hazmat cargo loaded on aircraft with no flight crew notification.

Narrative: After F/O (First Officer) finished the walk around he said he had taken a picture of something that was being loaded onto the aircraft and asked if I had ever seen this before. It looked like a small trash can on a small pallet; wrapped in plastic. He said it was labeled 'cryogenic medical supplies'. Preliminary DG (Dangerous Goods) report had said no DG on this flight. I went down to the ramp to see what this was. There were 3 of these containers each was marked 'cryogenic'. Dispatcher was called. He talked to Load Planner; neither had any record of DG to be loaded. Called [Station] Operations; they called back and said there was no paperwork on these containers; therefore; they were being removed from the aircraft. I went downstairs to the ramp; talked to the Ramp Supervisor and saw that they had been removed. F/O should be commended for his diligence. If he hadn't taken that picture I would have never known.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

B737 flight crew reported undocumented hazmat cargo loaded on aircraft with no flight crew notification.