# SDR SWAA2019051532651

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2019
- Submitted: May 15, 2019
- Operation: Air carrier
- Aircraft: N733SA
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 27865
- Aircraft time: 69,827 hours, 40,871 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: D71701100SWA
- Part serial: 35844
- Condition: Defective
- Location: Cabin
- Stage of operation: UK
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2019051532651

## Discrepancy

AFT UPPER L/H LIGHTING EMERGENCY CHARGER FORWARD CIRCUIT BREAKER AT P18-3 FOUND POPPED ON PREFLIGHT.  R&R POWER SUPPLY IAW AMM.

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