9999 ALTEC AN TSBs (2)
- Bulletin:
- SIL 659
- Component:
- 350000 equipment
- Summary:
- This service information letter (sil) requires installation of an improved hydroelectric lower control station selector valve. earlier versions of the valve can fail to shift or operate in some situations.
- Bulletin:
- SIL 667
- Component:
- 114000 electrical system:wiring
- Summary:
- This service information letter (sil) notified customers of an improved lower control wiring harness that added a diode to help eliminate voltage surges in the lower control panel.
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