# SDR ASAA1057515

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 10, 2010
- Submitted: March 12, 2010
- Operation: Air carrier
- Aircraft: [N577AS](https://openairdocs.org/aircraft/N577AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35186
- Aircraft time: 11,432 hours, 3,369 cycles
- System (JASC): [2437 · DC Indicating System](https://openairdocs.org/jasc/2437)
- Part: Warning System
- Condition: Malfunctioned
- Location: Electrical Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA1057515

## Discrepancy

THE "ELECT" LIGHT ON ELECTRICAL PANEL SHOWING.  CYCLED SPCU NORMAL & SPCU STBY C/B'S SPCU FAULT RESET SYS OPS NORMAL. CDS FAULT ILLUM DURING RESET CYCLED DEU 1 & 2 & DEU 1 & 2 HOLD UP C/B'S CDS FAULT CLEARED.  A/C REMAINS CAT IIIA A/L & HGS QUALIFIED.

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