# SDR HALA9800321

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 13, 1998
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: [N171AA](https://openairdocs.org/aircraft/N171AA), registered now
- Make and model: Doug DC-10-10
- Registry model: [Doug DC-10-10](https://openairdocs.org/model/mcdonnell-douglas-dc-10-10) (OpenAirDocs)
- Aircraft serial: 46906
- System (JASC): [2330 · Entertainment System](https://openairdocs.org/jasc/2330)
- Part: Pa System
- Condition: Malfunctioned
- Location: Cabin
- Stage of operation: CR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/HALA9800321

## Discrepancy

SEA - FLT 23 - STATIC INTERFERENCE HEARD FROM OVERHEAD SPEAKER/HEADSET AT WHICH TIME THE NR 1 F/D, NR 1 FMA, AND NR 1 GPS WENT BLANK.  AFTER STATIC STOPS, F/D, GPS RETURN TO NORMAL, FMA STAYS BLANK.  WHEN MODE TEST SWITCH IS DEPRESSED, FMA RETURNS TO NORMAL.  OCCURRED 3 TIMES ON FINAL.  UNABLE TO DUPLICATE STATIC ON NR 1 OVERHEAD SPEAKER/HEADSET.  OPS CHECK OK ON GROUND.  OK FOR SERVICE.  (M)

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