# SDR AWXA200200197

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 7, 2002
- Submitted: March 19, 2002
- Operation: Air carrier
- Aircraft: N634AW
- Make and model: Airbus A320-231
- Registry model: [Airbus A320-231](https://openairdocs.org/model/airbus-industrie-a320-231) (OpenAirDocs)
- Aircraft serial: 091
- Aircraft time: 38,597 hours, 17,640 cycles
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Indicator
- Part number: H321BHM1
- Part serial: 12666
- Condition: Failed
- Location: Cockpit
- Part time: 12,226 hours, 5,412 cycles
- 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/AWXA200200197

## Discrepancy

LAS - DIVERSION - FLT 790 - "S" - DURING CRUISE STANDBY HORIZON INDICATOR FAILED, AIRCRAFT DIVERTED TO LAS. MAINTENANCE REPLACED STANDBY HORIZON INDICATOR AND PERFORMED AN OPERATIONAL CHECK IAW T/C 34-22-24-04. AIRCRAFT CONTINUED TO PDX WITH OUT INCIDENT. BENCH TEST OF STANDBY HORIZON INDICATOR CONFIRMED FAILURE OF COMPONENT, THE FOLLOWING PARTS WERE REPLACED; THE LAMP, A SCREW, A PIVOT, 3 EACH BEARINGS, AND A REDUCTION GEAR. REDUCTION GEAR, P/N; H140ADY10, BEARING, P/N; A1186448.

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