# SDR ASAA2020011621836

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2020
- Submitted: January 29, 2020
- Operation: Air carrier
- Aircraft: [N457AS](https://openairdocs.org/aircraft/N457AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36355
- Aircraft time: 23,462 hours, 7,597 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Transceiver
- Part number: 8221710312
- Part serial: 18YPT9
- Condition: Inoperative
- Location: Wx Radar Sys
- Part time: 26,658 hours, 8,679 cycles
- Stage of operation: CR
- 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/ASAA2020011621836

## Discrepancy

DURING CRUISE, FL 350, WEATHER RADAR FAILED ANNUNCIATED AND ON APPROACH PWS FAILED ANNUNCIATED. GROUNDED - YES.   REMOVED AND REPLACED WEATHER RADAR TRANSCEIVER IAW AMM 34-43-41-000-801, AND MM 34-43-41-400-801. PERFORMED WEATHER RADAR SYSTEM OPERATIONAL TEST IAW AMM 34-43-00-710-802-001 - ALL TESTS PASSED.

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