# SDR O2GA2021120388501

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 2021
- Submitted: December 8, 2021
- Operation: Air carrier
- Aircraft: N885UP
- Make and model: Beech B300
- Registry model: [Beech B300](https://openairdocs.org/model/hawker-beechcraft-b300) (OpenAirDocs)
- Aircraft serial: FL1095
- Aircraft time: 3,010 hours, 2,556 cycles
- System (JASC): [2697 · Fire Protection System Wiring](https://openairdocs.org/jasc/2697)
- Part: Pcb
- Part number: 50881031
- Part serial: 0125
- Condition: Defective
- Part time: 3,010 hours, 2,556 cycles
- Stage of operation: AP
- How discovered: O
- Nature of condition: B, J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/O2GA2021120388501

## Discrepancy

ELECTRICAL BURNING SMELL EMANATING FROM LEFT SIDE COCKPIT INTERIOR FOLLOWED BY DUAL ENGINE FIRE WARNING ANNUNCIATOR. MAINTENANCE REPLACED PCB A129 (PN 5088103-1) AND CORRODED TERMINAL (PN: JTXN1202A) LOCATED ON THE BACK SIDE OF THE LEFT CIRCUIT BREAKER PANEL. RAN ENGINES AND ENVIRO SYSTEM WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.

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