# SDR YHLR2013061101872

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2013
- Submitted: June 11, 2013
- Operation: General aviation
- Filed by: [Treasure Coast Avionics Inc, repair station YHLR983K](https://openairdocs.org/faa-repair-station/YHLR983K/treasure-coast-avionics-inc.md) (OpenAirDocs)
- Aircraft: N1855Y
- Make and model: Cessna 172S
- Registry model: [Cessna 172S](https://openairdocs.org/model/cessna-172s) (OpenAirDocs)
- Aircraft serial: 172S9924
- Aircraft time: 4,236 hours
- System (JASC): [3457 · Global Positioning System](https://openairdocs.org/jasc/3457)
- Part: Antenna
- Part number: CI2480200
- Part serial: 5044516
- Condition: Corroded
- Location: Zone 200
- Part time: 4,236 hours
- Stage of operation: AP
- How discovered: O
- Nature of condition: J
- Precautionary procedure: L
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YHLR2013061101872

## Discrepancy

GPS NR 2 LOST SIGNAL ON RNAV GPS APPROACH. WARNING CAME UP ON GARMIN G1000 DISPLAY.  FOUND THAT ANTENNA BNC CONNECTORS WERE NOT CRIMPED ONTO EXTENDER CABLES INSTALLED BY MFG AND ALSO FOUND THAT THE ANTENNA WAS NOT PROPERLY SEALED AROUND PERIMETER OR ON FASTENER(S) BY MFG AT ORIGINAL OEM INSTALLATION. THUS THIS ALLOWED FOR WATER INTRUSION CAUSING CORROSION AND ANTENNA TO FAIL.  REPLACED NR 2 ANTENNA AS REQUIRED.  PERFORMED SYSTEM OPS CHECKS, SYS OPS CHECKS SATISFACTORY.

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