Service difficulty report · Control Panel · Boeing 737890
FAA SDR system
- Difficulty date
- July 20, 2021
- Submitted
- July 26, 2021
- Operation
- Air carrier
- Make and model
- Boeing 737890
- Aircraft serial
- 35191
- Aircraft time
- 47,611 hours, 14,113 cycles
- Part
- Control Panel
- Part number
- 6225129802
- Part serial
- 414YXM
- Condition
- Inoperative
- Location
- Wx Radar Sys
- Part time
- 19,792 hours, 5,734 cycles
- Stage of operation
- NR
- How discovered
- 9
- Nature of condition
- O
- Precautionary procedure
- O
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FO RADAR DISPLAY SHOWING GROUND CLUTTER WHEN IN "AUTO" "WX+T." FO RADAR DISPLAY SHOWS CORRECT WHEN "TFR" IS SELECTED. GROUNDED - YES. PERFORMED WXR SYSTEM TEST IAW B737-800 AMM 34-43-00-730-802-001. FAILS GROUND CLUTTER SUPPRESSION TEST (STEP H) FOR FO/RH SIDE. GC BUTTON OF WXR CONTROL PANEL INOP. REMOVED AND REPLACED WXR CNT PNL IAW B737-800 AMM 34-43-91/401. WXR SYS OPS TESTED NORMAL IAW AMM TASK 34-43-00-710-802-001.