# SDR ASAA2024041449006

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2024
- Submitted: April 15, 2024
- Operation: Air carrier
- Aircraft: N320AS
- Make and model: Boeing 737990
- Aircraft serial: 33680
- Aircraft time: 67,425 hours, 27,297 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100
- Condition: No Test
- Location: Emergency Lights
- 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/ASAA2024041449006

## Discrepancy

AFT LEFT EMERGENCY LIGHT BATTERY PACK FAILS SELF TEST. GROUNDED - YES. REMOVED AND REPLACED AFT LEFT EMERGENCY LIGHT BATTERY PACK S/N 189040 IAW B737NG AMM 33-51-06-960-805 STEP 4E(1-5) OP CK GOOD IAW 33-51-06-960-805 STEP 4E6.

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