# SDR UIEA2022041700309

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 17, 2022
- Submitted: April 20, 2022
- Operation: Air carrier
- Aircraft: [N445MC](https://openairdocs.org/aircraft/N445MC), registered now
- Make and model: Boeing 747
- Aircraft serial: 33515
- Aircraft time: 79,681 hours, 13,450 cycles
- System (JASC): [3000 · Ice/Rain Protection System](https://openairdocs.org/jasc/3000)
- Part: None
- Condition: None
- Stage of operation: DE
- 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/UIEA2022041700309

## Discrepancy

ON DESCENT, LOUD ELECTRICAL BUZZ BEHIND CAPTAIN LEFT SIDE FOLLOWED BY STRONG ELECTRICAL SMELL. POWER 2L WINDOW HEAT CIRCUIT BREAKER POPPED.(<P ><SPAN>REMOVED #2L WINDOW LINING. NO BURNING WIRES FOUND. FOUND MAINTENANCE MESSAGE 30120. FOLLOWED FIM 30-41 T818. RESET CB ON GROUND. ALL NORMAL AGAIN. PER FIM, OVERHEAT CAN BE POSSIBLE WITH INSTALLED. P/N 10-1468. ALSO PERFORMED SMOKE, FUME, ELECTRICAL INSPECTION PER AMM 05-51-56. NO FINDINGS. </SPAN></P> / <P> </P>)

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