Maintenance Log
10 entries · last 90 days| Date | Asset | Action | Performed by | Outcome | Hrs | WO |
|---|---|---|---|---|---|---|
Apr 21, 2026 preventive | Doble Calisto R9 monthly calibration verification Gas-in-air calibration passed. Headspace pressure 2.3 psi steady. | Dana Ford | preventive | 1.5 | WO-2026-001 | |
Apr 14, 2026 corrective | Bushing tap reseating after PF drift alert Opened bushing test tap on LV-B, reseated with Noalox — PF trended back to 0.37%. Continue watching. | Alex Rivera | corrective | 4 | WO-2026-002 | |
Apr 4, 2026 preventive | Quarterly battery impedance sweep All 60 cells within 7% of average. Cell 37 trending high — schedule replacement Q3. | T. Sabat | preventive | 3 | WO-2026-003 | |
Mar 27, 2026 preventive | Annual breaker timing + contact resistance Close time 42 ms, trip 18 ms. Contact resistance A/B/C = 22/24/23 µΩ. | Dana Ford | preventive | 5 | WO-2026-004 | |
Mar 12, 2026 inspection | IGBT module thermal scan Bank 2 showed 8 °C hot-spot relative to peers — fan bearing suspected. | Casey Park | inspection | 2 | WO-2026-005 | |
Feb 23, 2026 preventive | Oil sample — laboratory DGA (Myrkos 2 portable) Correlates with online Calisto R9 within 5%. Moisture 13 ppm. | Alex Rivera | preventive | 2 | WO-2026-006 | |
Jan 26, 2026 preventive | HVAC filter replacement + refrigerant top-up | Contractor · DesertHVAC | preventive | 1 | WO-2026-007 | |
Dec 27, 2025 commissioning | Calisto T1 commissioning (bushing + PD + iO) All 6 bushings wired, PD baseline captured, iO inputs validated. Install 5.5 hrs. | Dana Ford + Doble commissioning | commissioning | 5.5 | WO-2025-008 | |
Nov 27, 2025 commissioning | IDP/UDP ingest validation — curated stream list v2 Shaved firehose 48K points → 62 critical streams. Peer benchmark baseline established. | T. Sabat | commissioning | 8 | WO-2025-009 | |
Oct 28, 2025 preventive | Semi-annual SF6 density check + control power validation | Dana Ford | preventive | 2.5 | WO-2025-010 |