# SDR ASAA2023030542214

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 5, 2023
- Submitted: March 7, 2023
- Operation: Air carrier
- Aircraft: [N508AS](https://openairdocs.org/aircraft/N508AS), registered now
- Make and model: Boeing 737890
- Aircraft serial: 35691
- Aircraft time: 52,742 hours, 15,497 cycles
- System (JASC): [3440 · Independent Position Determining System](https://openairdocs.org/jasc/3440)
- Part: Transceiver
- Part number: 8221710312
- Part serial: 40RLC6
- Condition: Faulty
- Location: Area Fwd Nlg Ww
- Part time: 26,757 hours, 10,224 cycles
- 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/ASAA2023030542214

## Discrepancy

WEATHER RADAR DEPICTED CELLS WHERE THERE WERE NONE AND DEPICTED NOTHING WHEN THERE WERE CELLS. USED IN AUTO AND MANUAL BOTH. AUTO SEEMED MORE INACCURATE. GROUNDED - YES. REMOVED AND REPLACED THE WEATHER RADAR TRANSCEIVER IAW B737-800 AMM 34-43-41.

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