# SDR ASAA2018012923332

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 29, 2018
- Submitted: January 31, 2018
- Operation: Air carrier
- Aircraft: [N453AS](https://openairdocs.org/aircraft/N453AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36354
- Aircraft time: 16,102 hours, 5,328 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: D71702001
- Condition: Malfunctioned
- Location: Emergency Light
- Stage of operation: CR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2018012923332

## Discrepancy

FIRST CLASS EMERGENCY LIGHTS RAMDOMLY FLICKER ON AND OFF IN FLIGHT.  ACFT GROUNDED. REMOVED AND REPLACED THE BATTERY PACK IAW WDM 33-51-12 AND AMM 33-51-06. PERFORMED OPS TESTED. SYS CHECKED NORMAL.

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