Indigo did the "busting" and the holding company has fragmented. Frontier has absolutely no link to RAH. If you don't believe me maybe you will believe the IBT...

"According to press reports, the sale to Indigo is supposed to be finalized by the end of this month, November 2013. Indigo is a private equity firm, is not affiliated with RAH in any way, and intends to run Frontier as a stand alone carrier.

Given this recent significant change, the IBT ...asks the NMB to conduct an investigation of Frontier and Republic on the essential question of wether a single carrier still exists."

This is from a letter from the IBT to the NMB dated November 7th 2013. The IBT Airline Division was apparently trying to prevent the AFA from conducting an election prior to the closing of the sale of F9.

The F9 pilots will not be attempting to "bust up" a "union shop" any more than the IBT has just attempted to maintain their "union shop" with the RAH Flight Attendants. The IBT is trying to use the sale to insulate themselves from an election while the F9 pilots will use the sale to initiate an election. The fact that the IBT submitted this argument less than a month prior to FAPA petitioning the NMB with the same argument was an early Christmas present. Thank you very much IBT.

Finally, anyone can petition the IBT. The NMB Representation Manual states the following;

"Participants

Participants in a representation matter are: the carrier, any labor organization(s) or individual(s) seeking to represent a carrier’s employees or any incumbent representative of a carrier’s employees. The term “participant” includes parties defined below.

Parties are any labor organization(s) or individual(s) seeking to represent a carrier’s employees and any incumbent representative of the carrier’s employees.

One does not need to search too far back in history to find an example of an individual petitioning the NMB who is part of a class and craft that is already represented by a Union. These individuals were not "busting" a "Union shop", they were simply advocating for a different Union. In one well known case a Union member contacted the NMB asking how he could remove his current Union. The NMB sent the individual a representation manual and a template for Authorization Cards. The concept that "only a Union can petition the NMB" is ludicrous.

Thankfully we won't have to predict what the NMB will do for much longer. There are already three F9 craft and classes on the NMB's desk.