# SDR ASAA2021052934969

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 29, 2021
- Submitted: June 1, 2021
- Operation: Air carrier
- Aircraft: [N431AS](https://openairdocs.org/aircraft/N431AS), registered now
- Make and model: Boeing 737990ER
- Aircraft serial: 43255
- Aircraft time: 28,121 hours, 9,065 cycles
- System (JASC): [3442 · Weather Radar System](https://openairdocs.org/jasc/3442)
- Part: Transceiver
- Condition: Not Seated
- Location: Wx Radar Sys
- Stage of operation: CR
- 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/ASAA2021052934969

## Discrepancy

IN CRUISE AT FL350 WITH WEATHER RADAR ON IN AUTO WX + T MODE, AMBER WXR FAIL ILLUMINATED ON ND. IN TEST MODE, PWS FAIL AND WXR FAIL ANT ARE DISPLAYED ON N.D. GROUNDED - YES. RESEATED WEATHER RADAR TRANSCEIVER AND ACCOMPLISHED BIT CHECK IAW B737-900 FIM 34-45 TASK 801. OPS CHECK NORMAL.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.