# SDR HALA9900127

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 28, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N601AP](https://openairdocs.org/aircraft/N601AP), registered now
- 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: 47658
- System (JASC): [3420 · Attitude and Direction Data System](https://openairdocs.org/jasc/3420)
- Part: Amplifier
- Part number: 2588533901
- Condition: Malfunctioned
- Location: Nr 2
- Part time: 13,631 hours
- 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/HALA9900127

## Discrepancy

FLT 564 - HNL - NR 2 COMPASS SYSTEM BECAME INOPERATIVE WITH GEAR RAISED.  STARTED WORKING AGAIN WITH THE GEAR DOWN.  REPLACED NR 2 INSTRUMENT AMPLIFIER.  OPS CHECK GOOD.  (M)

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