| Acronym | Meaning |
| TMBU | Table Maintenance Block Update |
| SRS | Specification Revision Sheet |
| PIC | Pyro Initiator Controller |
| RSF | Refurbishment And Subassembly Facilities |
| OH | Overhaul |
| GLY | Glycol |
| MI | Mile |
| CTPD | Crew Training And Procedures Division (JSC) |
| CARR | Customer Acceptance Readiness Review |
| FQR | Flight Qualification Review |