# SDR 95ZZZX5619

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N224AB](https://openairdocs.org/aircraft/N224AB), registered now
- Make and model: Beech F33A
- Registry model: [Beech F33A](https://openairdocs.org/model/beech-f33a) (OpenAirDocs)
- Aircraft serial: CE1680
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Switch
- Part number: A1S24035
- Condition: Failed
- Location: Cockpit
- Part time: 3 hours
- Component: Avioninst
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX5619

## Discrepancy

REMOTE SWITCH UNIT USED FOR GPS/NAV TRANSFER INTERNAL RELAY BANKS, FAILED.  INTERNAL K2, K3, AND K4 RELAY BANKS FAILED IN THE CLOSED POSITION AND K5 BANK FAILED IN NEUTRAL POSITION.  THIS FAILURE CAUSES THE NAV 1 HSI INDICATOR TO DISPLAY ERRONEOUS INFORMATION.

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