| Acronym | Meaning |
 | ABEC | Analog Backup Engine Control |
| RGNRQR | Ignition Request Right Engine |
| PSTAT | Precipitation Static |
| ACC | Aircrew Change (tdc 66) |
| SOCD | See Operational Concepts Document |
| PTP | Program Test Plans |
| MOD | Modify |
| COSAL | Consolidated Shipboard Allowance List |
| DMI | Depot Maintenance Interservice |
| PVS | Periscope View Simulators (associated With 21a Series) |
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