# SDR HALA2011080100346

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 2011
- Submitted: August 2, 2011
- Operation: Air carrier
- Aircraft: N586HA
- Make and model: Boeing 767-3G5
- Registry model: [Boeing 767-3G5](https://openairdocs.org/model/boeing-767-3g5) (OpenAirDocs)
- Aircraft serial: 24259
- Aircraft time: 95,835 hours, 18,112 cycles
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Iru
- Part number: HG1050AE10
- Part serial: 02054294
- Condition: Malfunctioned
- Location: Left
- Stage of operation: TX
- How discovered: V
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA2011080100346

## Discrepancy

ETOPS SIGNIFICANT SYS - BTB, ATT DISAGREE EICAS MESSAGE DURING TAXI.  REPLACED LT IRU IAW AMM 34-21-01, ALIGNMENT CHECK OK.

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