# SDR ASAA2022011237140

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 12, 2022
- Submitted: January 15, 2022
- Operation: Air carrier
- Aircraft: [N461AS](https://openairdocs.org/aircraft/N461AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 36363
- Aircraft time: 29,208 hours, 9,221 cycles
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Unknown
- Part number: UNKNOWN
- Condition: Unknown
- Location: Unknown
- Stage of operation: NR
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ASAA2022011237140

## Discrepancy

WX RADAR DISPLAYS CONSTANT RETURN AT 2:00 POSITION IN BOTH MANUAL AND AUTO MODES. NO WX IN AREA. GROUNDED - YES. REF PREVIOUS TROUBLESHOOTING, PERFORMED WXR OPERATIONAL TEST REF B737-900 AMM 34-43-00-710-802-001. FOUND SYS OPS NML, NO FAULTS, OR OTHER DEFECTS NOTED AT THIS TIME. SYS TEST PASSED.

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