# SDR AMTA200600559

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 2006
- Submitted: September 22, 2006
- Operation: Air carrier
- Aircraft: [N522AT](https://openairdocs.org/aircraft/N522AT), registered now
- Make and model: Boeing 757-23N
- Registry model: [Boeing 757-23N](https://openairdocs.org/model/boeing-757-23n) (OpenAirDocs)
- Aircraft serial: 29330
- System (JASC): [3445 · Air Collision Avoidance System](https://openairdocs.org/jasc/3445)
- Part: Iru
- Part number: HG1050AE09
- Part serial: QQ002389
- Condition: Unserviceable
- Location: Center
- Part time: 19,748 hours, 6,067 cycles
- Stage of operation: TX
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AMTA200600559

## Discrepancy

CENTER INU SHOWS IRS MOTION ON FMS CDU WHILE IN NAV DURING TAXI.  CENTER IRU REVERTS BACK TO ALIGN MODE.  SWAPPED CTR AND RT IRS`S. RT NOW PN HG1050AE09, NS 91803089.  CTR NOW PN HG105OAE09, SN 95081120.  CTR IRS, OPS CHECK NORMAL.  (K)

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