# SDR ASAA12511407

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 14, 2012
- Submitted: April 17, 2012
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 14,247 hours, 4,543 cycles
- Engine: Cfmint CFM567B27
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Antenna
- Part number: 6225135202
- Part serial: 1715Y6
- Condition: Failed
- Location: Weather Radar
- Part time: 14,267 hours, 4,547 cycles
- Stage of operation: CL
- 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/ASAA12511407

## Discrepancy

RECEIVED PWS FAULT ON T/O THRU 4000 FT, ACFT GROUNDED.  ACCOMPLISHED TROUBLESHOOTING FOR PWS FAIL IAW FIM 34-43-00-810-815 WEATHER RADAR OPS TEST FAILED WITH ANTENNA FAULT.  REPLACED WEATHER RADAR ANTENNA DRIVE UNIT IAW MM 34-43-11-000-802 & MM 34-43-11-400-802. CLEANED WEATHER RADAR TRANSCEIVER FAN AND PERFORMED WXR OPS TEST IAW MM 34-43-00-710-802-001. ALL TESTS PASS.

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