# SDR FDEA201511183701

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 18, 2015
- Submitted: November 19, 2015
- Operation: Air carrier
- Aircraft: [N957FD](https://openairdocs.org/aircraft/N957FD), registered now
- Make and model: Boeing 757-21B
- Registry model: [Boeing 757-21B](https://openairdocs.org/model/boeing-757-21b) (OpenAirDocs)
- Aircraft serial: 24774
- Aircraft time: 555 hours, 33,723 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: 4040800912
- Part serial: 9010284
- Condition: Failed
- Location: Left
- Stage of operation: TO
- How discovered: O
- Nature of condition: J
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/FDEA201511183701

## Discrepancy

ON TAKEOFF ROLL, CAPTAIN ADC FAILED.  DUPLICATED DADC FAIL ON GND.  R & R LT DADC IAW AMM 34-12-01-4.  OPERATIONS CHECKED NORMAL.  OK FOR SERVICE.

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