# SDR HALA0000016

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 6, 2000
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N709HA
- Make and model: Doug DC-9-51
- Registry model: [Doug DC-9-51](https://openairdocs.org/model/mcdonnell-douglas-dc-9-51) (OpenAirDocs)
- Aircraft serial: 47764
- System (JASC): [3421 · Attitude Gyro and Indicating System](https://openairdocs.org/jasc/3421)
- Part: Gyro
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA0000016

## Discrepancy

HNL - FLT 348 - (AIR TURN BACK) BOTH COMPASSES, CAPTAIN AND FIRST OFFICER, OK GROUND, BUT ON TAKEOFF, WERE OFF BY 30 DEGREES TO 50 DEGREES OR MORE.  BACK ON GROUND, THEY WENT TO 5 DEGREES OFF.  REPLACED NR 1 AND NR 2 DIRECTIONAL GYROS.  BOTH COMPASS SYSTEMS, OPS CHECKED OK.  (X)

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