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FindingSeverityEvidenceRiskImmediate ActionLong-term CAPA
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Contact res. Phase-B feeder F3 = 180 µΩ vs A=80, C=85 µΩ
MajorµΩ test reportLocal heating/arc riskClean/replace contactsAdd annual µΩ trending
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IR bus-to-earth = 150 MΩ (humid day)MinorIR logReduced marginBake/dehumidify; re-test
Install better space heaters/thermostat
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Relay OCR pickup 1.2 × setting (drift)Major
Secondary injection
Mis-coordination
Recalibrate/update settings
Formal settings Mgmt + seal settings
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Shutter not fully closing on Panel 6CriticalVisual/functional
Inadvertent contact risk
Remove from service; repair
Interlock inspection checklist each PM
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