| Review | Major System/ Platform Variant | Original Planned | Current Planned | Achieved/ Forecast | Variance (Months) |
| System Function | AWD Program | Mar 08 |
| Apr 08 | 1 |
| Preliminary Design | AWD Program | Dec 08 |
| Feb 09 | 0(1) |
| Critical Design | AWD Program | Dec 09 |
| Feb 10 | 0(2) |
| Variance Explanations | Note(1): The PDR was conducted as scheduled in Dec 08 and resulting actions completed as scheduled by Feb 09. Note(2): The CDR was conducted as scheduled in Dec 09 and resulting actions completed as scheduled by Feb 10. | ||||