| Item | Original Planned | Achieved/Forecast | Variance (Months) | Variance Explanations/Implications |
| Operational Release of Special Forces | Jun 07 | Dec 15 | 102 | MAA delivery date was for COLLINS only. DECHAINEUX implementation through MAA amendment created variance. The delay was further influenced by contractor workforce constraints and the phased delivery of capability enhancements to the Special Forces systems. |
| Operational Release of Torpedo Decoy | Jun 14 | Oct 13 | (8) | This modification is largely independent of the constraints of the docking maintenance schedules and can be simultaneously rolled out to platforms. |
| Fire Fighting Upgrade (SHEEAN) | Jun 14 | Sep 22 | 100 | Variance due to changes in docking maintenance schedule since original MAA. |
| Sewage System Upgrade (FARNCOMB) | Jun 14 | Mar 17 | 34 | Variance due to changes in docking maintenance schedule since original MAA. |
| Fast Track (WALLER) | Jul 06 | Nov 07 | 16 | Fast Track initially installed on two submarines and managed under SEA 1446 Phase 1. This project installed the Fast Track upgrades across the remaining four submarines. Variance due to changes in docking maintenance schedule since original MAA. |
| Approval | ||
| Sep 00 | Oct 07 | Sep 22 |
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