# SDR QXEA2024051600127

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 15, 2024
- Submitted: May 16, 2024
- Operation: Air carrier
- Aircraft: [N643QX](https://openairdocs.org/aircraft/N643QX), registered now
- Make and model: Emb ERJ 170-200 LR
- Registry model: [EMB ERJ 170-200 LR](https://openairdocs.org/model/embraer-s-a-erj-170-200-lr) (OpenAirDocs)
- Aircraft serial: 17000763
- Aircraft time: 14,159 hours, 9,388 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 330131
- Part serial: 643QXLHFWD
- Condition: Malfunctioned
- Location: Emergency Lights
- Part time: 14,153 hours
- 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/QXEA2024051600127

## Discrepancy

DURING ORIGINATING FLOW FOUND OVERHEAD EMERGENCY LIGHTS NOT ILLUMINATING. REMOVED FROM SERVICE. NTERROGATED CMC AND FOUND FAULT CODEE 33500002CTI. C/W E175 FIM 33-50-00-810-802-A. THROUGH STEP 7.L.(2). FAULT STILL PERSISTS. REPLACED EMERGENCY LIGHT POWER UNIT BATTERY, FWD L.H, REF. AMM 33-50-01-000/400-802-A. OPS TEST GOOD, NO FUTHER DEFECTS. RETURNED TO SERVICE.

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