# SDR ASAA2026032865192

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 28, 2026
- Submitted: March 30, 2026
- Operation: Air carrier
- Aircraft: [N569AS](https://openairdocs.org/aircraft/N569AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35184
- Aircraft time: 66,914 hours, 20,585 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Discharged
- Location: Zone 200
- 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/ASAA2026032865192

## Discrepancy

EMERGENCY LIGHTS ARE ON & WILL NOT EXTINGUISH. AS BATTERY PACKS GO DEAD, SOME LIGHT SECTIONS ARE NOW OUT. GROUNDED - YES. SECURED EMERGENCY LIGHT SYSTEM , PLACED EMERGENCY LIGHTS SWITCH TO OFF ALLOW 90 MINUTES TO CHANGE FOR DEEP AS REQUIRED. PERFORMED EMERGENCY LIGHT OPS CHECK IAW AMM 33-51-00-710-801, TEST FAILED. FOUND EMERGENCY LIGHT SWITCH DEPRESSED AT AFT ATTEND PANEL. REQUIRES 90 MIN CHARGE CYCLE,  DEEP CYCLE COMPLETED IAW AMM 33-51-06-600-802, OPS TEST PASSED IAW AMM 33-51-00-710-801.

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