# SDR UALA2010122004644

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 18, 2010
- Submitted: December 20, 2010
- Operation: Air carrier
- Aircraft: [N544UA](https://openairdocs.org/aircraft/N544UA), registered now
- Make and model: Boeing 757222
- Aircraft serial: 25322
- Aircraft time: 72,131 hours, 20,757 cycles
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Iru
- Part number: HG1050AE10
- Part serial: 320
- Condition: Faulty
- Location: Right
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UALA2010122004644

## Discrepancy

NO LAND 3 IN ASA AFTER ADIRU ALIGNED. MCDP TEST 30 FAILED "ADC-I RU R" WITH INTERMITTENT NR2 IVSI INOP.  FLAG IN VIEW.  NEW IVSI AND ADC, NO HELP.  NEW IRU CORRECTED PROBLEM.  ORIGINAL IVSI AND ADC REINSTALLED--ALL UNITS TEST OK.

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