Delta co-pilot Rustom Bhagwagar, 34, was arrested at SFO for alleged felony sexual abuse of a child by local deputies and federal agents on July 26, Saturday.

The mom not only knew her daughter was being abused, she watched — and even participated, according to the documents.

On July 26, as Delta Flight 2809 landed at SFO, deputies coordinated with Homeland Security Investigations to board the plane and make the arrest without alerting the suspect in advance. Viral footage taken by passengers shows law enforcement entering the cockpit and escorting Bhagwagar off the plane in handcuffs.