# SDR SWAA2024061098184

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2024
- Submitted: June 10, 2024
- Operation: Air carrier
- Aircraft: [N8318F](https://openairdocs.org/aircraft/N8318F), registered now
- Make and model: Boeing 737-8H4
- Registry model: [Boeing 737-8H4](https://openairdocs.org/model/boeing-737-8h4) (OpenAirDocs)
- Aircraft serial: 36685
- Aircraft time: 38,855 hours, 18,136 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: UNKNOWN
- Condition: Defective
- 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/SWAA2024061098184

## Discrepancy

EMERGENCY LIGHTS AT L1 DOOR DO NOT STAY 'ON' FOR MORE THAN TEN SECONDS WHEN SWITCH IS SELECTED TO ON POSITION.<[01] PERFORMED TROUBLESHOOTING OF EMERGENCY LIGHTS L1 AS PER B737 SSM 33-51-12; FOUND BATTERY PACK M1675 DEFECTIVE. REMOVED AND REPLACED EMERGENCY LIGHT BATTERY PACK AT POS M01675 AND PERFORMED INSTALLATION TEST AS PER B737 AMM TASK 33-51-06-960-805. TEST PASS.;[02] VERIFIED STEP 1

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