# SDR DHL2001807016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 19, 2001
- Submitted: May 22, 2001
- Operation: Air carrier
- Aircraft: N807DH
- Make and model: Doug DC-8-73
- Registry model: [Doug DC-8-73](https://openairdocs.org/model/douglas-dc-8-73) (OpenAirDocs)
- Aircraft serial: 45990
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Gyro
- Condition: Faulty
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: F
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL2001807016

## Discrepancy

AUTOPILOT ELEVATOR CONTROL JERKS ON CLIMBOUT AND IN LEVEL FLIGHT.  AUTOPILOT ELEVATOR SERVO INDICATOR SHOWS CORRESPONDING MOVEMENT.  THIS IS A REPEAT ITEM.  COULD NOT DUPLICATE AUTOPILOT JERKS.  SWAPPED TO AUX VERTICAL GYRO FOR TROUBLESHOOTING.  CAPTAINS NORMAL GYRO TO BE DEFERRED.  SEE ITEM 3M.  AUTOPILOT CHECKS GOOD IAW DC-8 22-0.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.