SANTA FE, N.M. (AP) — A movie weapons armorer is appealing her conviction for involuntary manslaughter in the fatal shooting of a cinematographer by Alec Baldwin on the set of the Western film “Rust,” according to court documents released Tuesday.

A defense attorney filed the shortly worded appeal notice as Hannah Gutierrez-Reed serves an 18-month sentence at a New Mexico penitentiary for women. Her attorneys have 30 days to submit detailed arguments.

Prosecutors blame Gutierrez-Reed for unwittingly bringing live ammunition onto the set of “Rust,” where it was expressly prohibited, and for failing to follow basic gun-safety protocols. A jury convicted her in state court in March.

Baldwin, the lead actor and co-producer of the film, was pointing a gun at cinematographer Halyna Hutchins during a rehearsal when the gun went off, killing her and wounding director Joel Souza.