# SDR 2005FA0001019

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 7, 2005
- Submitted: July 25, 2005
- Operation: General aviation
- Aircraft: [N5277J](https://openairdocs.org/aircraft/N5277J), registered now
- Make and model: Cessna 207A
- Registry model: [Cessna 207A](https://openairdocs.org/model/cessna-207a) (OpenAirDocs)
- Aircraft serial: 20700772
- Engine: Cont IO520*
- System (JASC): [3160 · Central Display](https://openairdocs.org/jasc/3160)
- Part: Transceiver
- Part number: 4306081100000
- Part serial: 29100439
- Condition: Malfunctioned
- Location: Cockpit
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2005FA0001019

## Discrepancy

DURING GROUND FUNCTIONAL CHECKS FOLLOWING INITIAL INSTALLATION, MX20 DISPLAYS THE ERROR MESSAGE (GDL90 REQUIRES MAINTENANCE).  UPON INSTALLATION OF ANOTHER UNIT, ERROR MESSAGE CLEARED, SYSTEM OPERATION SATISFACTORY.  (AL05200502604) (K)

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