# SDR MALA090018

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 10, 2009
- Submitted: February 11, 2009
- Operation: Air carrier
- Aircraft: N415XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B415
- Aircraft time: 27,165 hours, 29,698 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: 330151
- Part serial: 2128
- 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/MALA090018

## Discrepancy

WHILE PERFORMING JC335003, FUNCTIONAL TEST OF EMERGENCY BATTERY PACK CAPACITY, POWER PACK 21LN FAILED CHECK.  REMOVED AND REPLACED POWER SUPPLY 21LN, P/N 3301-51 S/N ON 2123 S/N OFF 2128.  ALL WORK DONE IAW SAAB AMM 33-50-10.  OPS CHECK GOOD.

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