# SDR 99ZZZX2513

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 1999
- Submitted: March 26, 2000
- Operation: Air carrier
- Aircraft: N199GL
- Make and model: Beech 99
- Registry model: [Beech 99](https://openairdocs.org/model/beech-99) (OpenAirDocs)
- Aircraft serial: U15
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Antenna
- Condition: Malfunctioned
- Location: Navigation
- Stage of operation: NR
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX2513

## Discrepancy

PILOTS REPORTED VERY WEAK NAVIGATION RECEPTION,  EVEN AFTER NUMEROUS CHECKS FROM AVIONICS SHOP EQUIPMENT.  A DIFFERENT SET OF ANTENNAS WERE INSTALLED, BUT DID NOT RESOLVE PROBLEM.  ONLY AFTER A NEW SET OF ANTENNAS WERE INSTALLED, DID THE PROBLEM DISAPPEAR.

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