Commercial Fixed Wing
Deviation / Discrepancy - Procedural Hazardous Material Violation
General Maintenance Action
Human Factors
When processing Aircraft X inbound mail we found a piece of Priority mail with Dangerous Goods label and label that indicated surface transportation only. Mail looks to have come out of a larger postal bag of priority mail due to know presence of a airline DNR barcode.
Ramp employee reported finding USPS mail cargo labeled 'Surface Transport only' during aircraft cargo unloading.