# SDR GTIA010096

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 6, 2001
- Submitted: May 14, 2001
- Operation: Air carrier
- Aircraft: N130NK
- Make and model: Doug DC-9-41
- Registry model: [Doug DC-9-41](https://openairdocs.org/model/douglas-dc-9-41) (OpenAirDocs)
- Aircraft serial: 47604
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Autopilot Sys
- Condition: Vibration
- Location: Coockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: E
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GTIA010096

## Discrepancy

WITH AUTO PILOT ON, THERE IS A LOW FREQUENCY VIBRATION IN PATCH AXIS, PITCH SERVO OFF, NO VIBRATION.  NORMAL OPERATION.  OPS CHECK GOOD ON GROUND IAW DC-9 MM 22-10-00.  THIS CLEARS DMI NR 000165-1.  PLACARDS REMOVED.  (M)

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