# SDR TSAA0734041

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 18, 2007
- Submitted: July 20, 2007
- Operation: Air carrier
- Aircraft: [N816AL](https://openairdocs.org/aircraft/N816AL), registered now
- Make and model: Boeing 737-2X6C
- Registry model: [Boeing 737-2X6C](https://openairdocs.org/model/boeing-737-2x6c) (OpenAirDocs)
- Aircraft serial: 23122
- Aircraft time: 46,243 hours, 71,950 cycles
- System (JASC): [3422 · Directional Gyro and Indicating System](https://openairdocs.org/jasc/3422)
- Part: Hsi
- Part number: 7771083002
- Part serial: 54584
- Condition: Failed
- Location: Nr 1
- Stage of operation: CL
- How discovered: V
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/TSAA0734041

## Discrepancy

CARGO FLIGHT 944 HNL-KOA - DURING CLIMB, THE CAPTAIN NOTED THE NR 1 HORIZONTAL SITUATION INDICATOR HAD THE COMPASS FLAG IN VIEW.  THE CAPTAIN ATTEMPTED TO TRANSFER THE COMPASS INDICATION TO BOTH ON NR 2 BUT THE FLAG REMAINED IN VIEW.  THE CREW RETURNED TO HNL WITHOUT FURTHER INCIDENT.  MAINTENANCE REPLACED THE NR 1 HSI AND OPS CHECKED PER AMM 34-26-21.  AIRCRAFT WAS RETURNED TO SERVICE.

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