# SDR CA030424008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2003
- Submitted: May 27, 2003
- Operation: Air carrier
- Make and model: Doug DC-9-83
- Registry model: [Doug DC-9-83](https://openairdocs.org/model/douglas-dc-9-83) (OpenAirDocs)
- Aircraft time: 15,051 hours
- Engine: Pwa JT8D219
- System (JASC): [2297 · Auto Flight System Wiring](https://openairdocs.org/jasc/2297)
- Part: Wire
- Part number: 2C610Y20RD
- Condition: Chafed
- Location: Autopilot Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: H
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA030424008

## Discrepancy

(CAN) AUTO PILOT AND AUTO THROTTLE DISENGAGES C/B C-18 POP OUT. THE DFGS AND AILERON SERVO WERE REPLACED AND FUNCTIONAL CHECK WERE CARRIED OUT, AIRCRAFT RETURN TO SERVICE. ON THE SECOND FLIGHT AUTO PILOT NR 1 TRIP ALONG WITH THE AUTO THROTTLE AND C/B C18 POP OUT. AIRCRAFT STARTED TO OSCILLATED IN FLIGHT. QR A COMPLETED YAW DAMPER OFF RUDDER HYD LEVER - MAN. OSCILLATION STOP.WIRE 2C610Y20RD FOUND SHAFING ATUPPER SECTION OF VERTICAL FIN (28 VAC FEED FOR RT ELEVATOR POSITION SENSOR). WIRE ISOLATED AND AREPAIRED. SYSTEM CHECK SERVICEABLE IAW MM 22-00-00 P202.

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