A memo from June that’s making headlines in recent days pinned a Colorado airport as having the most safety incidents among airports recognized by the National Airspace System (NAS) at that point in the year – and it wasn’t Denver International Airport.

Before digging into the memo, it’s important to reiterate that the memo is from several months ago, thus it may be a bit outdated at the time this article is being published. With that noted, the June 10 memo subject-lined as ‘BJC Air Traffic Restrictions’ that’s published in its entirety on the CBS News site reads as follows:

“Rocky Mountain Metropolitan Airport currently leads the National Airspace System (NAS) in the number of Potentially Significant Events (PSEs), which include both runway incursions and airborne safety incidents.”

The memo continues with a list of safety guidelines and procedural changes related to various airport operations, aimed to “remove some of the complexities that exists in BJC [Rocky Mountain Metropolitan Airport] operation.”

While the memo doesn’t directly address any specific incident, it was released after a plane leaving out of BJC crashed and killed two in May, with the pilot involved in that crash believed to have dealt with a door that popped open per a Denver 7 report.

Located in Broomfield, BJC stays busy and has been growing with the Denver metro area in recent years. Per a report from air travel industry publication AVweb, this growth was considered a contributing factor when the decision was made to address operations and safety issues, prompting the FAA to implement “structured ground traffic flows in coordination with local flight schools and airport users” on June 16.

The CBS News report on the matter quotes a BJC spokesperson as noting that safety is the top priority, and “while RMMA does not set or control flight paths, aircraft altitude assignments, or air traffic procedures – any change made to improve safety is positive for our community.” The spokesperson continues to note that periodical updates to operations as directed by the FAA do occur.