# SDR MALA100021

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 12, 2010
- Submitted: February 12, 2010
- Operation: Air carrier
- Aircraft: N454XJ
- Make and model: Saab 340B
- Registry model: [Saab 340B](https://openairdocs.org/model/saab-340b) (OpenAirDocs)
- Aircraft serial: 340B454
- Aircraft time: 24,761 hours, 27,386 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Condition: Failed
- Location: Emergency Light
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/MALA100021

## Discrepancy

EMERG BATTERY PACK 24LN AND 21LN FAILED TEST TC 335003.  R & R 24LN SN ON 2219 SN OFF 2216, 21LN SN ON 1427 SN OFF 2225 IAW MM 33-50, ALL CKS GOOD.

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