As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ON FINAL BOTH THE PWS FAIL AND WX FAIL AMBER LIGHTS ILLUMINATED FOR AT LEAST 5 SECONDS THEN AFTER THAT THE ANNUNCIATOR AMBER LIGHTS EXTINGUISHED. GROUNDED - YES. A/C LOGGED MSG 34-43107 LAST FLT (WXR RT 1 FAIL). FAULT IS NOT ACTIVE. PERFORMED B737-9 IFIM 34-41-00-810-818 AND GROUND VERIFICATION CK PASSED, NO HISTORY OF FAULT LAST 30 DAYS.