# SDR AALA20101004STL01

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 4, 2010
- Submitted: October 5, 2010
- Operation: Air carrier
- Aircraft: [N7509](https://openairdocs.org/aircraft/N7509), 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: 49803
- Aircraft time: 61,100 hours, 31,499 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Indicator
- Condition: Failed
- Location: Cockpit
- Stage of operation: CR
- How discovered: O
- Nature of condition: I
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA20101004STL01

## Discrepancy

STL - CREW REPORTED STANDBY ATTITUDE INDICATOR FAILED.  FLIGHT RETURNED STL LANDED WITHOUT INCIDENT.  REPLACED THE STANDBY HORIZON INDICATOR AND INVERTER.  SYSTEM GROUND CHECKED NORMAL OPERATION.

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