# SDR 97ZZZX1837

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 31, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N66CG](https://openairdocs.org/aircraft/N66CG), registered now
- Make and model: Piper PA-60-601P
- Registry model: [Piper PA-60-601P](https://openairdocs.org/model/piper-pa-60-601p) (OpenAirDocs)
- Aircraft serial: 61P0277061
- System (JASC): [2312 · VHF Communications System](https://openairdocs.org/jasc/2312)
- Part: Transceiver
- Part number: KX165
- Condition: Excess Interf
- Location: Nav Comm
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX1837

## Discrepancy

UPON IFR CERTIFICATION UPGRADE OF APOLLO 2001GPS, C/W RFI TESTS.  FOUND NAV COMM RADIO TO INDUCE EXCESSIVE RFI INTO GPS SYSTEM.  CAUSE BEING NAV RADIO; OTHER NAV/COMM OF SAME TYPE OK IN EITHER NR 1 OR NR 2 SLOT.  APPLICATION OF 'NOTCH' FILTERS HAD NO AFFECT ON SITUATION.  RADIO SENT TO FACTORY FOR REPAIR.

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