| Acronym | Meaning |
![](file.png) | FLTSATCOM | Fleet Satellite Communications |
![](file.png) | HF | Hard Failure |
![](file.png) | FM/PM | Frequency Modulation/Phase Modulation |
![](file.png) | TFL | Telemetry Format Load |
![](file.png) | HPRV | Hydrogen Pressure Relief Valve |
![](file.png) | GFP | Government Furnished Property |
![](file.png) | LETF | Launch Equipment Test Facility (KSC) |
![](file.png) | GLS | Ground Launch Sequence (Sequencer) |
![](file.png) | N2H4 | Hydrazine |
![](file.png) | RDD | Requirements Definition Document |