# SDR GTIA040825

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2004
- Submitted: December 7, 2004
- Operation: Air carrier
- Aircraft: N821NK
- Make and model: Doug DC-9-82
- Registry model: [Doug DC-9-82](https://openairdocs.org/model/mcdonnell-douglas-dc-9-82) (OpenAirDocs)
- Aircraft serial: 49508
- Engine: Pwa JT8D217A
- System (JASC): [3422 · Directional Gyro and Indicating System](https://openairdocs.org/jasc/3422)
- Part: Gyro
- Condition: Inaccurate
- Location: Cockpit
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA040825

## Discrepancy

HEADING LIGHT ON IN FLIGHT 6 FT-8 FT OFF.  REPLACED NR 1 DG AND SWITCHING UNIT.

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