| Acronym | Meaning |
| OPSS | Orbital Propellant Storage Subsystem |
| TBI | Through-Bulkhead Initiator |
| SPC | Shuttle Processing Contractor |
| BP | Caution And Warning |
| PAL | APA Indonesian Communications Satellite |
| CT | Current Transformer |
| EQUIV | Equivalent |
| CSDD | Control Systems DeveloPment Division (JSC) |
| CTR | Contract Technical Representative |
| MESC | Master Events Sequencer Controller |