# SDR UIEA2016031700188

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2016
- Submitted: March 21, 2016
- Operation: Air carrier
- Aircraft: [N477MC](https://openairdocs.org/aircraft/N477MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29255
- Aircraft time: 70,777 hours, 12,695 cycles
- System (JASC): [3130 · Data Recorders (Flight/Maintenance)](https://openairdocs.org/jasc/3130)
- Part: Recorder
- Part number: 9804700033
- Part serial: 2862
- Condition: Failed
- Location: Cockpit
- Stage of operation: IN
- How discovered: C
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2016031700188

## Discrepancy

FOUND DFDR FUNCTIONAL TEST FAILED.  IAW AMM 31-31-01-004-001 & 31-31-01-404-004 REV 85 REPLACED DIGITAL FLIGHT DATA RECORDER.  IAW AMM 31-31-00-745-090 REV 85 PERFORMED GND TEST FLIGHT RECORDER SYS, THE RESULT WAS SATISFACTORY.

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