# SDR DHL97802008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 3, 1997
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N802DH](https://openairdocs.org/aircraft/N802DH), registered now
- Make and model: Doug DC-8-73F
- Registry model: [Doug DC-8-73F](https://openairdocs.org/model/douglas-dc-8-73f) (OpenAirDocs)
- Aircraft serial: 46076
- System (JASC): [3441 · Inertial Guidance System](https://openairdocs.org/jasc/3441)
- Part: Inu
- Part number: 452080051942
- Condition: Failed
- Location: Nr 1
- Stage of operation: CL
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DHL97802008

## Discrepancy

NR 1 INS DRIFTED OFF 20 MILES WITHIN 1 HOUR OF DEPARTURE.  UPDATED WAS INITIATED WITHIN 5 MIN.  BOTH INS BEGAN FLASHING, BOTH ALERT AND WARNING LIGHTS ILLUMINATED, THEN EXTINGUISHED.  MALFUNCTION CODES WERE 8010301 AND 0001.  REMOVED AND REPLACED NR 1 INU, OPS CHECKED GOOD PER MM 34-41-1.

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