# SDR UIEA2026092000888

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 20, 2026
- Submitted: September 21, 2026
- Operation: Air carrier
- Aircraft: [N496MC](https://openairdocs.org/aircraft/N496MC), registered now
- Make and model: Boeing 747-47UF
- Registry model: [Boeing 747-47UF](https://openairdocs.org/model/boeing-747-47uf) (OpenAirDocs)
- Aircraft serial: 29257
- Aircraft time: 106,097 hours, 17,858 cycles
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Indicator
- Part number: H321BTM
- Part serial: 10294
- Condition: Failed
- Location: Attitude
- Stage of operation: CL
- How discovered: O
- Nature of condition: P
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/UIEA2026092000888

## Discrepancy

STBY ATTITUDE INDICATOR FAILED AFTER TAKEOFF.  REMOVED AND REPLACED STANDBY ATTITUDE INDICATOR AS PER AMM 34-24-01/401 AND AIPC 34-24-01-05. OPS CHECK PASSED, NO FURTHER DEFECTS NOTED.</P>)

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