Air cargo releases to the consignee named on the air waybill without surrendering originals, so there is no document chase the way ocean originals create one. That is the working difference from the ocean bill of lading: a BL can be a negotiable document of title whose originals govern release, while the air waybill never carries title. For the forwarder, the consequence is that control over delivery sits in who is named as consignee at issuance, not in holding paper back, which is the decision to get right before the shipment departs.
Glossary
Air Waybill (AWB)
The transport document an air carrier issues for a consignment, serving as the receipt for the goods and evidence of the contract of carriage, but never a document of title.