| Acronym | Meaning |
 | NDE | Nondestructive Evaluation |
| MSE | Mechanical Support Equipment |
| I | FIntermediate Frequency |
| TY | Translation Hand Controller Y-Axis Direction |
| ISC | Johnson Space Center (formerly MSC) |
| NOC | Not Otherwise Coded |
| M50 | Mean Of 1950 (Coordinate System) |
| SDTA | Structural Dynamic Test Article |
| UNBAL | Unbalance |
| QTR | Quarter |
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