# SDR GLBA2017031000640

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 9, 2017
- Submitted: March 10, 2017
- Operation: Air carrier
- Aircraft: [N293UX](https://openairdocs.org/aircraft/N293UX), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120293
- Aircraft time: 36,620 hours, 36,727 cycles
- System (JASC): [4997 · APU System Wiring](https://openairdocs.org/jasc/4997)
- Part: Shunt
- Condition: Burned
- Location: Apu
- Stage of operation: NR
- How discovered: O
- Nature of condition: B
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GLBA2017031000640

## Discrepancy

UNKNOWN SOURCE OF AN ELECTRICAL ODOR AROUND THE APU PANEL.  NO TRIPPED CIRCUIT BREAKERSS OR OTHER ISSUES NOTED.  MAINTENANCE FOUND THE APU SHUNT BURNED IN THE APU RELAY BOX.  R & R THE APU SHUNT. INSTALLED A NEW SHUNT IN REVERSE. OPS CHECKED APU IAW MM 49-00-00, SEC 5.  NO DISCREPANCIES NOTED.

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