# SDR 9JLA2014011504956

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 31, 2013
- Submitted: January 15, 2014
- Operation: Air carrier
- Aircraft: N404BL
- Make and model: Beech 400A
- Registry model: [Beech 400A](https://openairdocs.org/model/hawker-beechcraft-400a) (OpenAirDocs)
- Aircraft serial: RK367
- Aircraft time: 3,673 hours, 3,612 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Gyro
- Part number: 501181201
- Part serial: 1095
- Condition: Defective
- Location: Attitude
- Stage of operation: CR
- How discovered: O
- Nature of condition: I
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/9JLA2014011504956

## Discrepancy

THE CREW REPORTED THAT THE STAND BY ATTITUDE INDICATOR DRIFTED MORE THAN 10 DEGREES IN 30 MINUTES.  THE STAND BY GYRO WAS REMOVED SN 1095 & AN OVERHAULED UNIT WAS INSTALLED.  FUNCTIONAL CHECKS SATISFACTORY.

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