# SDR UALA2011090504797

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 4, 2011
- Submitted: September 26, 2011
- Operation: Air carrier
- Aircraft: N597UA
- Make and model: Boeing 757222
- Aircraft serial: 28750
- Aircraft time: 49,535 hours, 13,938 cycles
- Engine: Pwa PW2037
- System (JASC): [3150 · Central Warning](https://openairdocs.org/jasc/3150)
- Part: Module
- Part number: 285T003510
- Part serial: D04586
- Condition: Faulty
- Location: Warning System
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2011090504797

## Discrepancy

WARN ELEX STATUS MSG.  DUE TO REPORTS OF WARN ELEX STATUS MSG AND NO FAULTS FOUND AFTER FIM 31-51-00 ACCOMPLISHMENT AND POWER SUPPLY 'A' M616 HAS BEEN REPLACED (SEQ5252004, PLZ REPLACE POWER SUPPLY 'B' M621 PER MM, (PCN 481-9027), PLZ CHECK WITH ON LINE IPC FOR PROPER EFFECTIVITIES.  REPLACED M621 MODULE,CHECK OK PER MM.

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