# SDR ASAA2019031828659

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 18, 2019
- Submitted: March 19, 2019
- Operation: Air carrier
- Aircraft: [N520AS](https://openairdocs.org/aircraft/N520AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 36481
- Aircraft time: 36,468 hours, 12,465 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery Pack
- Part number: ADD71701100D7170
- Condition: Discharged
- Location: Cabin
- 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/ASAA2019031828659

## Discrepancy

LT FWD OVERWING EMERGENCY EXIT LIGHT INOP. GROUNDED - YES. REMOVED AIR GRILLE AT STA 565 LBL68 IAW AMM 21-23-03-00-801, REMOVED AND REPLACED EMERGENCY EXIT LIGHT POWER SUPPLY AND BATTERY PACK M1694 AND INSTALLATION TEST GOOD IAW AMM 33-51-06-960-805 AND AMM 33-51-06-960-806 & AMM 33-51-00.

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