# SDR MALA040251

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2004
- Submitted: March 15, 2004
- Operation: Air carrier
- Aircraft: N414XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B414
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 330151
- Part serial: 1412
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA040251

## Discrepancy

DURING COMPLETION J/C NR 335003 (OPS TEST OF EMERGENCY LIGHTING SYSTEM) THE POWER SUPPLIES FAULTED IN POSITION 20LN (S/N 1319) AND 24LN (S/N 1412) USING TEST BOX P/N TES-4052081.  REMOVED AND REPLACED 24LN POWER SUPPLY.  P/N ON AND OFF 3301-51, S/N ON 2006, S/N OFF 1412.  ALL CHECKS ARE GOOD.  ALL IAW SF340 MM.

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