# SDR SWAA2016061652915

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 15, 2016
- Submitted: June 16, 2016
- Operation: Air carrier
- Aircraft: [N520SW](https://openairdocs.org/aircraft/N520SW), registered now
- Make and model: Boeing 737-5H4
- Registry model: [Boeing 737-5H4](https://openairdocs.org/model/boeing-737-5h4) (OpenAirDocs)
- Aircraft serial: 25319
- Aircraft time: 73,568 hours, 69,748 cycles
- System (JASC): [3320 · Passenger Compartment Lighting](https://openairdocs.org/jasc/3320)
- Part: Relay
- Part number: BAC27DEX1137
- Condition: Overheated
- Location: Cabin
- Stage of operation: UK
- How discovered: O
- Nature of condition: B
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2016061652915

## Discrepancy

CABIN OVERHEAD LIGHTS ON CAPTAIN SIDE DO NOT EXTINGUISH IN OFF SWITCH POSITION.  ELECTRICAL ODOR WAS NOTED DURING FLIGHT.  FOUND R120 RELAY OVERHEATED.  R & R R120 RELAY IAW AMM.

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