# SDR UALA2010060902016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 9, 2010
- Submitted: June 15, 2010
- Operation: Air carrier
- Aircraft: [N648UA](https://openairdocs.org/aircraft/N648UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 25285
- Aircraft time: 75,491 hours, 12,224 cycles
- Engine: Pwa PW4060
- System (JASC): [3417 · Air Data Computer](https://openairdocs.org/jasc/3417)
- Part: Adc
- Part number: S242T210211
- Part serial: 18
- Condition: Faulty
- Location: Position 2
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010060902016

## Discrepancy

FO ALT, AIRSPEED AND VSI HAVE OFF FLAGS. OK WHEN AIR DATA ALTN SELECTED. ALSO TCAS FAIL ON HSI. AIR DATA COMPUTER REPLACED. REMOVED AIR DATA P/N. INSTALLED NEW AIR DATA. ALL TESTS PASS WITH SUCCESS.

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