You can access document attachments on pages related to manufacturing. You can find the Document Attachment FactBox in many places, such as:

Attached documents page

Production BOM (page 99000786)
Production BOMs (page 99000787)
Routing (page 99000766)
Routing List (page 99000764)
Simulated Production Order (page 99000912)
Simulated Production Orders (page 9323)
Planned Production Order (page 99000813)
Planned Production Orders (page 9324)
Firm Planned Prod. Order (page 99000829)
Firm Planned Prod. Orders (page 9325)
Released Production Order (page 99000831)
Released Production Orders (page 9326)
Finished Production Order (page 99000867)
Finished Production Orders (page 9327)
Production Order List (page 99000815)

You can also select the Attachment action to go to document attachments from lines on the following pages:

Simulated Prod. Order Lines (page 99000913)
Planned Prod. Order Lines (page 99000814)
Firm Planned Prod. Order Lines (page 99000830)
Released Prod. Order Lines (page 99000832)
Finished Prod. Order Lines (page 99000868)

The Attachment action

Use the new Flow to Production Trx toggle in the Attached Documents page to control how documents attached to items, production BOMs, or routings flow to production order lines.