# SDR IPXA2017021514068

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 14, 2017
- Submitted: February 15, 2017
- Operation: Air carrier
- Aircraft: N270UP
- Make and model: Doug MD-11F
- Registry model: [Doug MD-11F](https://openairdocs.org/model/mcdonnell-douglas-md-11f) (OpenAirDocs)
- Aircraft serial: 48576
- Aircraft time: 56,040 hours, 14,671 cycles
- System (JASC): [2420 · AC Generation System](https://openairdocs.org/jasc/2420)
- Part: Control Unit
- Part number: 750866D
- Part serial: 0226
- Condition: Multiple Fail
- Location: Electrical Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: G
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/IPXA2017021514068

## Discrepancy

NUMEROUS ELECTRICAL FAULTS (FCC 2 FAIL, AVIONICS OVERRIDE, DU DISPLAYS, A/C AND D/C TIE BUSSES) WHICH RESULTED IN DEGRADED NAVIGATION CAPABILITY.  EMERGENCY DECLARED.  REPLACED EPCU IAW AMM 24-08-01-400.  CHECKED NORMAL. REPLACED OVERHEAD ELECTRICAL CONTROL PANEL AND DC BUSS TIE NR 2 RCCB

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