B747-400
Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine; Flight Crew Instrument
Communication Breakdown; Training / Qualification; Workload
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
General Maintenance Action
Human Factors
I have asked my Relief Pilot to inspect the main deck after loading was completed. He brought to my attention stacking issues with pallet position RL. I have asked ZZZ Load Master to address his concerns and delayed departure until the issues was fixed. After landing ZZZ1; ground personnel offloaded position RL and RR and we learned that pallet position SR collapsed into pallet position SL. Both S position were hazardous lithium batteries.
Air carrier Captain reported a Hazmat cargo load configuration error which resulted in the collapse of two adjacent Lithium Ion battery pallets while enroute.