# SDR DHL97804005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 7, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N804DH](https://openairdocs.org/aircraft/N804DH), registered now
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46124
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Vert Gyro
- Part number: 258733511
- Condition: Failed
- Location: Lt Cockpit
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL97804005

## Discrepancy

IN FLIGHT, WITH CHANGES IN PITCH AND BANK, CAPTS ADI FLUCUATES TO VARIOUS PITCH AND BANK ERRONEOUS READINGS.  ANNUNCIATOR FLASHES ON AND OFF.  REPLACED CAPT VERTICAL GYRO PER M/M 34-20.

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