Nathan Fielder, the comic behind HBO’s “The Rehearsal,” ripped the Federal Aviation Administration on Thursday after the agency dismissed his findings in the show’s latest season, which examines contributing factors to plane crashes.

“That’s dumb, they’re dumb,” Fielder told CNN’s Pamela Brown after she noted that the agency “isn’t seeing the data” to support the show’s “central claim” that pilot miscommunications are to blame for air disasters.

Fielder explored communication breakdowns in the cockpit via the docu-comedy series’ second season, leaning on his awkward approach to humor that blurs the lines between reality and comedy — all while recreating possible social interactions to draw his conclusions.

Fielder shared his findings in a similarly surreal segment on CNN on Thursday, with Brown turning to a statement from an FAA spokesperson in response to the show. The FAA statement said the agency requires airline crew and dispatchers to complete a “Crew Resource Management” training before official work, noting they must return to the course on a “recurring basis” thereafter.

Fielder swiftly laid into his “issue” with the FAA’s statement, saying that he trained to be a pilot in the new season.