Battletech

Depending on how femcel you want to define the Bechdel test, I can think of at least one passing example:

Constance and Florimel Kurita have at least one conversation about Constance's career in Heir to the Dragon. Near the beginning of the book there's this whole "We're promoting you to O5P Adept, but you're never really going to be an Adept because you're going to immediately be Florimel's apprentice" conversation. Theodore's graduation from the academy is mentioned during this conversation, and a man is present and participates in the conversation.

Thinking through the Blood Of Kerensky trilogy, and not coming up with much that passes. There's a brief exchange between Tyra Myraborg and her wingman Nik wherein Tyra is basically saying goodbye before her suicide run. Natasha Kerensky and Cyrilla Ward briefly reminisce about their good old days before the conversation turns to Phelan. Ranna teases Natasha about being her "grandmother."