# SDR COZA20140724044

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2014
- Submitted: July 25, 2014
- Operation: Air carrier
- Aircraft: N732KA
- Make and model: Boeing 737-7
- Registry model: [Boeing 737-7](https://openairdocs.org/model/boeing-737-7) (OpenAirDocs)
- Aircraft serial: 25065
- Aircraft time: 44,902 hours, 38,753 cycles
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: HG480B43
- Part serial: G134642
- Condition: Failed
- Location: E&E Bay
- Stage of operation: LD
- How discovered: O
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/COZA20140724044

## Discrepancy

ON APPROACH, THE FIRST OFFICERS AIRSPEED INDICATOR & ALTIMETER FAILED WITH ALL FLAGS SHOWN.  DURING TROUBLESHOOTING THE AIR DATA COMPUTER WOULD NOT TEST.  THE AIR DATA COMPUTER WAS REPLACED.  LEAK & OPERATIONAL CHECKS WERE ACCOMPLISHED WITH NO WARNING INDICATIONS SHOWN.

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