# SDR UALA2013012400417

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 23, 2013
- Submitted: February 5, 2013
- Operation: Air carrier
- Aircraft: [N664UA](https://openairdocs.org/aircraft/N664UA), registered now
- Make and model: Boeing 767322
- Aircraft serial: 29236
- Aircraft time: 51,011 hours, 13,728 cycles
- Engine: Pwa PW4056
- System (JASC): [3416 · Altimeter, Barometric/Encoder](https://openairdocs.org/jasc/3416)
- Part: Adc
- Part number: 4040800917
- Part serial: 1
- Condition: Inaccurate
- Location: 1st Officer
- Stage of operation: CR
- How discovered: O
- Nature of condition: N
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2013012400417

## Discrepancy

CAPTAIN'S AND FLIGHT OFFICER'S ALTIMETERS DIFFER BY 120 FEET.  REMOVED AND REPLACED FIRST OFFICERS ADC, OPS CHECKED GOOD.

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