# SDR SWIA200718149

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2007
- Submitted: April 20, 2007
- Operation: Air carrier
- Aircraft: [N934SW](https://openairdocs.org/aircraft/N934SW), registered now
- Make and model: Cndair CL6002B19
- Aircraft serial: 7722
- Aircraft time: 11,156 hours, 9,813 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: 8220372445
- Part serial: 1GVJR
- Condition: Failed
- Location: Nr 1
- Part time: 5,228 hours, 4,509 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA200718149

## Discrepancy

"EFIS COMP MON" CAUTION MESSAGE AND "IAS" FLAG ON BOTH DISPLAYS.  DETERMINED ADC 1 FAILED.  PURGED PITOT/STATIC SYSTEMS NR 1 AND NR 2 IAW AMM 34-11-00, AND REPLACED NR 1 ADC IAW AMM 34-13-01.

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