# SDR SWAA2019071634939

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 15, 2019
- Submitted: July 16, 2019
- Operation: Air carrier
- Aircraft: [N445WN](https://openairdocs.org/aircraft/N445WN), registered now
- Make and model: Boeing 737-7H4
- Registry model: [Boeing 737-7H4](https://openairdocs.org/model/boeing-737-7h4) (OpenAirDocs)
- Aircraft serial: 29841
- Aircraft time: 55,084 hours, 32,589 cycles
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Iru
- Part number: HG2050AC07
- Part serial: 56021288
- Condition: Failed
- Location: E&E Bay
- Stage of operation: CL
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWAA2019071634939

## Discrepancy

AIR TURNBACK, #2 INERTIAL REFERENCE SYSTEM FAULT/FAIL.  R&R #2 AIR DATA INERTIAL REFERENCE UNIT PER AMM.

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