# SDR CALA2024022300508

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2024
- Submitted: February 23, 2024
- Operation: Air carrier
- Aircraft: [N13720](https://openairdocs.org/aircraft/N13720), registered now
- Make and model: Boeing 737724
- Aircraft serial: 28939
- Aircraft time: 77,380 hours, 26,866 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADDD71701100
- 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/CALA2024022300508

## Discrepancy

L1 EXTERIOR AND R1 INTERIOR EMERGENCY LIHTS FAIL OPS CHECK DURING SERVICE CHECK. REF TO PEMCO NR 1861.0028 REPLACED ATTERY PACK AT M1674, LOCATION IAW B737 AMM 33-51-06-96 0-805. PERFORMED OPS CHECK OF EMERGENCY LIGHTS IAW B737 MM 33-51 -00-710-801. OP CHECK GOOD.

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