# SDR ASAA2022050338199

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 3, 2022
- Submitted: May 5, 2022
- Operation: Air carrier
- Aircraft: [N474AS](https://openairdocs.org/aircraft/N474AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 40715
- Aircraft time: 25,567 hours, 8,043 cycles
- System (JASC): [3443 · Doppler System](https://openairdocs.org/jasc/3443)
- Part: Control Panel
- Part number: 6225129802
- Part serial: 45LLML
- Condition: Failed
- Location: Flight Compartme
- Part time: 25,555 hours, 8,040 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/ASAA2022050338199

## Discrepancy

RADAR AUTO BUTTON FAILS INTERMITTENTLY. GROUNDED - YES. REMOVED AND REPLACED WXR CONTROL PANEL REF B737-900 AMM 34-43-91. ALL FUNCTIONS OPS GOOD.

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