# SDR SWIA200211620

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 22, 2002
- Submitted: December 27, 2002
- Operation: Air carrier
- Aircraft: [N188SW](https://openairdocs.org/aircraft/N188SW), registered now
- Make and model: Emb EMB-120ER
- Registry model: [EMB EMB-120ER](https://openairdocs.org/model/embraer-emb-120er) (OpenAirDocs)
- Aircraft serial: 120039
- Aircraft time: 38,556 hours, 47,325 cycles
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Relay
- Condition: Malfunctioned
- Location: Hsi
- 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/SWIA200211620

## Discrepancy

FIRST OFFICER'S EHSI WENT BLANK ON TAKEOFF GOING THROUGH 500 FT.  RETURNED TO SFO.  INSTALLED KNOWN SERVICEABLE RELAYS AT K0394 AND K0396.  NR 2 EHSI SCREEN REMAINED UNAFFECTED BY AUX GENERATOR POWER TRANSFERS.  HEADING INDICATION CHECKS GOOD.

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