| Acronym | Meaning |
| MTTF | Mean Time To Failure |
| HZ | Hertz |
| COE | Government Owned Equipment |
| DAU | Data Acquisition Unit |
| YRST | Salvage Craft Tender (non Self-propelled)(misc) |
| QEB | Quick Engine Bulletin (tdc 04) |
| PPLI | Precise Participant Location And Identification |
| NEC | Nippon Electric Company |
| FOB | Freight On Board |
| AEMS | Aircraft Engine Management System |