The US Marine Corps is considering an extensive upgrade to its tired H-53 workhorses, and among other things hopes it will address the issue of TFOA. What on Earth is that? you might ask. Tactical Follow-On Armament or Terrain Following Obstacle Awareness, perhaps?
Don't be silly! Anyone well versed in Marine gobbledegook will immediately tell you TFOA stands for: Things Falling Off Aircraft.
Source: Flight International