# SDR AALA20110707TUL02

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 6, 2011
- Submitted: July 11, 2011
- Operation: Air carrier
- Aircraft: N70504
- 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: 49798
- Aircraft time: 62,820 hours, 32,858 cycles
- System (JASC): [3422 · Directional Gyro and Indicating System](https://openairdocs.org/jasc/3422)
- Part: Gyro
- Condition: Failed
- Location: Cockpit
- Stage of operation: CL
- How discovered: O
- Nature of condition: G
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20110707TUL02

## Discrepancy

STL - INFLIGHT DFW-CMH.  CREW REPORTED ELECTRICAL ANOMOLY IN WHICH AUTO THROTTLES DISENGAGED, CAPTAINS FD BARS BIASED OUT OF VIEW, CAPTAINS FLIGHT MANAGEMENT ANNUNCIATOR WINDOWS WENT BLANK AND NO AUTOLAND ILLUMINATED.  RE-ENGAGED AUTOTHROTTLE WITH NO SUBSEQUENT PROBLEMS.  EMERGENCY DECLARED FLIGHT DIVERTED STL LANDED WITHOUT INCIDENT.  REPLACED NUMBER 1 AND 2 GYROS AND BOTH FLIGHT GUIDANCE COMPUTERS.  SYSTEM GROUND CHECK NORMAL OPERATION.

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