Contreras Villafana faces federal I-9 and citizenship counts.

Federal charges are accusations. A long employment history is not a conviction. I-9 fraud counts stand or fall on proof, not press framing. On Friday, Sept. 18, 2026, Homeland Security arrested Alma Patricia Contreras Villafana, 54, a Mexican national from South Los Angeles, at Howmet Aerospace’s Torrance factory, where she worked as a machinist. Reporting described a roughly two-hour standoff after she hid in a conference room before she was cuffed. An arrest on a factory floor is the start of a federal file. It is not a finding that any I-9 was false.

The charging stack, as reported, is five counts of wire fraud, one count of using a false or forged certificate of naturalization, one count of aggravated identity theft, and one count of a false claim to U.S. citizenship. Prosecutors allege she first claimed U.S. citizenship on an I-9 in 1996 at a Howmet subsidiary, that an immigration judge ordered her removed in 2003, and that she submitted another I-9 this year using another person’s naturalization-certificate number. They also allege Howmet paid her at least $1,402,459 over about 30 years. Those are the government’s numbers and dates. They are not a verdict on any count.

Howmet is a Pittsburgh-based aerospace shop that makes jet-engine and titanium parts and holds military-contractor work. Los Angeles U.S. Attorney Bill Essayli commented on military-contractor access and national security. A prosecutor’s security framing is argument. It does not prove the I-9s, the certificate, or the identity-theft count. If convicted, the reported statutory exposure is up to 20 years on each wire-fraud count, up to 10 years on the forged-naturalization count, up to 3 years on the false-citizenship claim, and a mandatory 2-year consecutive term on aggravated identity theft. Maximums are the ceiling if a jury convicts. They are not a sentence. All defendants are presumed innocent until proven guilty in a court of law.