# SDR UIEA2014101900500

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2014
- Submitted: October 20, 2014
- Operation: Air carrier
- Aircraft: [N492MC](https://openairdocs.org/aircraft/N492MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29253
- Aircraft time: 69,086 hours, 12,010 cycles
- System (JASC): [2400 · Electrical Power System](https://openairdocs.org/jasc/2400)
- Part: Circuit Breaker
- Part number: 241805
- Part serial: C4556
- Condition: Popped
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: J, G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2014101900500

## Discrepancy

ELECTRIC TRU 4 & MULTIPLE ASSOCIATED EICAS STATUS MSGS.  REFERENCING ITEMS 1 - 9, FOUND TO BE CORRELATED TO POPPED CB C856, WHEN RESET ALL ITEMS CLEARED.  AS PRECAUTION REPLACED CB C856 AS WELL AS TRU 4.  ALL OPERATIONAL CHECKS NORMAL IAW TASK 24-32-01, AMM 33-11-00, AMM 30-41-00, AMM 30-32-00, AMM 24-32-01, AMM 77-31-00 & AMM 30-40-00.

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