A Southwest spokeswoman said no passengers witnessed the incident.

DALLAS (AP) — Federal authorities have charged a former Southwest Airlines pilot with indecent exposure for an incident they say occurred during a flight last August.

Michael Haak was the pilot in command of the plane during a flight from Philadelphia to Orlando, Florida, according to a one-page filing in federal district court in Maryland.

READ MORE: Barrel And Flow Fest Calls For Boycott Of Hofbrauhaus Pittsburgh, Alleges Racism

According to the document, which was dated Friday, Haak exposed his genitals in acts that began, continued and ended while flight 6607 on Aug. 10 was in the air. The document did not indicate the circumstances and who might have witnessed the incident.

A Southwest spokeswoman said no passengers witnessed the incident; the pilots were the only people aboard aware of the incident.

READ MORE: Clairton Football Team Deals With Fallout Of Recent Violence

The airline spokeswoman said Haak left the airline before the company was aware of the incident. Since learning of it, she said, Southwest cooperated with investigators.

It could not be determined if Haak has a lawyer.

MORE NEWS: Balloon Release Held For Steven Eason, The 15-Year-Old Central Catholic Student Shot And Killed At Haunted Hills Hayride

(Copyright 2021 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.)