# SDR P5CA0300980

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 10, 2003
- Submitted: November 11, 2003
- Operation: Air carrier
- Aircraft: N524UP
- Make and model: Boeing 747-200
- Registry model: [Boeing 747-200](https://openairdocs.org/model/boeing-747-200) (OpenAirDocs)
- Aircraft serial: 21446
- Aircraft time: 68,101 hours, 18,117 cycles
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Hsi
- Part number: 7771397001
- Part serial: 6D424
- Condition: Failed
- Location: Cockpit
- Stage of operation: TX
- How discovered: O
- Nature of condition: O
- Precautionary procedure: D
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/P5CA0300980

## Discrepancy

DURING ENG START AT PUSHBACK CAPT'S CDI COMPASS FLAG IN VIEW COMPASS FROZE ON HSI.  HSI WAS PREVIOUSLY CHANGED ON PRIOR ITEM & PLACED ON SOS.  ORIGINAL HSI INSTALLED, OPS CK OK PER MM 34-41-06.

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