# SDR DHL2001801001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 22, 2001
- Submitted: February 22, 2001
- Operation: Air carrier
- Aircraft: N801DH
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46033
- System (JASC): [3425 · Integrated Flight System](https://openairdocs.org/jasc/3425)
- Part: Indicator
- Part number: 177836623
- Part serial: 7080928
- 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/DHL2001801001

## Discrepancy

F/O''S HSI IS FROZEN, OFF FLAG INTERMITTENT.  REPLACED AND TESTED F/O HSI PER M/M 34-21-0.  ALL TESTED GOOD.

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