# SDR ASAA2021100336208

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 3, 2021
- Submitted: October 12, 2021
- Operation: Air carrier
- Aircraft: [N419AS](https://openairdocs.org/aircraft/N419AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41734
- Aircraft time: 31,650 hours, 10,192 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: None
- Part number: D71702001
- Condition: Discharged
- Location: Aft Cabin
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2021100336208

## Discrepancy

EMERGENCY EXIT BULLNOSE LIGHTS INOP @ 25 DEF & 29 DEF. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY BATTERY PACK REF B737-900 AMM 33-51-06-960-805. OPS CHECK GOOD.

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