# SDR ASAA2015122014356

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 20, 2015
- Submitted: December 22, 2015
- Operation: Air carrier
- Aircraft: [N433AS](https://openairdocs.org/aircraft/N433AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 41704
- Aircraft time: 8,553 hours, 2,739 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Radar
- Condition: Failed
- Location: Wx Sys
- Stage of operation: NR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2015122014356

## Discrepancy

WXR FAIL IN ALL MODES.  ACFT GROUNDED.  PERFORMED WEATHER OPS TEST IAW AMM 34-43-00, 6 TIMES AFTER CHECKING R/T FOR SECURITY AND COOLING FAN OPERATION.  TIGHTENED SECURING KNOBS 2 TO 3 TURNS.  COOLING FAN, OPS NORMAL.  INTERMITTENT FAULT IAW FIM 34-43, TASK 814. WEATHER OPS TEST GOOD EACH TIME.

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