# SDR ASAA2022110940696

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 9, 2022
- Submitted: November 10, 2022
- Operation: Air carrier
- Aircraft: [N562AS](https://openairdocs.org/aircraft/N562AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35091
- Aircraft time: 58,705 hours, 17,294 cycles
- System (JASC): [3400 · Navigation System](https://openairdocs.org/jasc/3400)
- Part: Unknown
- Condition: Multiple Fail
- 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/ASAA2022110940696

## Discrepancy

PWS FAILED AND TCAS FAILURE ON N.D.'S. GROUNDED - YES. ON ARRIVAL @ AIRCRAFT, TCAS AND PWS NO FLAGS ON ND. 'CYCLED TCAS AND WX RADAR C/B'S P18-B6 AND P6-1 D13. NO PWS FAIL FLAG AFTER RESET WX RADAR BITE TEST GOOD REF B737-800 FIM 34-43 TASK 801 AND 34-43 TASK 815 ETOPS SIGNIFICANT SYSTEM GROUND VERIFICATION SUCCESSFUL. TCAS BITE SHOWS NO FAULTS AFTER RESET REF FIM 34-45 TASK 801. ALL TESTS PASS

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