The TSA failed to spot two AK-47 assault-rifle magazines stowed in the luggage of a suspicious Yemeni national who was preparing to fly back to his homeland from JFK Airport on a one-way ticket, sources said.

Bassam Alkhanshli, 32, was busted as he and a traveling companion, Methaq Mohammed Ali, 28, were set to board Emirates Flight 202 to Yemen at 11 p.m. Sunday, the sources said.

Alkhanshli and his pal were stopped by the TSA because they had purchased one-way tickets to Yemen — long considered a red flag by counterterrorism officials.

The Transportation Security Administration screeners then found that the two men were carrying above the $10,000 maximum in US currency.