# SDR AALA20130720005

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 20, 2013
- Submitted: July 24, 2013
- Operation: Air carrier
- Aircraft: [N478AA](https://openairdocs.org/aircraft/N478AA), registered now
- 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: 49653
- Aircraft time: 71,231 hours, 37,485 cycles
- System (JASC): [2211 · Autopilot Computer](https://openairdocs.org/jasc/2211)
- Part: Computer
- Part number: 4034241973
- Condition: Faulty
- Location: Autopilot Sys
- Stage of operation: CR
- How discovered: O
- Nature of condition: F, J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20130720005

## Discrepancy

BOTH AUTOPILOT DISCONNECTED IN FLIGHT.  REPLACED BOTH DIGITAL FLIGHT GUIDANCE COMPUTERS.  SYSTEM GROUND CHECKED NORMAL.

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