# SDR SWIA971367

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 8, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N292SW
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120319
- Engine: Pwa PW118B
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Ahrs
- Condition: Failed
- Location: Cockpit
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SWIA971367

## Discrepancy

TOTAL AHRS FAILURE EHSI, EADI.  DIVERTED TO PSP.  REPLACED RELAYS K0395, K0397, K0394 AND K0396.  TESTED AHRS IAW MM 34-21-00 AND PERFORMED OPERATIONAL TEST OF 70 PERCENT SWITCHING RELAYS, TEST GOOD.  BACK UP BATTERY TEST GOOD IAW MM 24-00-00.

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