Are lithium metal cells permitted as bulk cargo shipments on passenger carrying aircraft?

• A. Yes
• B. Only with approval
• C. No
• D. Only if venting device

Answer: (C)

Lithium metal cells carry a significant fire risk because damaged, shorted, or poorly packaged cells can enter thermal runaway, producing intense heat, flames, and dangerous gases. On passenger aircraft, the cargo holds and cabin have limited means to detect and suppress a battery fire quickly, making the spread and control of such fires unsafe. Because of this hazard, regulations prohibit transporting lithium metal cells as bulk cargo on passenger aircraft. They may only move under strict conditions, such as when placed in equipment or on all-cargo aircraft with proper packaging, labeling, and approvals. So, bulk shipments on passenger planes are not permitted.