# SDR 2019F00078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2018
- Submitted: November 6, 2018
- Operation: General aviation
- Aircraft: N458AN
- Make and model: Boeing 737-33A
- Registry model: [Boeing 737-33A](https://openairdocs.org/model/boeing-737-33a) (OpenAirDocs)
- Aircraft serial: 27458
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Iru
- Part number: HG1050AD09
- Condition: Faulty
- Location: Zone 100
- Stage of operation: CR
- How discovered: L
- Nature of condition: S
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2019F00078

## Discrepancy

AT 15:35 QEF TO SLCB DUE TO LOSS OF BOTH IRUS (BOTH IRUS FAULT). CORRECTIVE ACTION: HAS BEEN CHANGED IRU #1 AND IRU #2 IAW AMM 34-28-31.

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