Service difficulty report · Transceiver · Boeing 737990ER

Difficulty date
June 19, 2021
Submitted
June 21, 2021
Operation
Air carrier
Aircraft
N487AS
Make and model
Boeing 737990ER
Aircraft serial
44108
Aircraft time
20,831 hours, 6,518 cycles
Part
Transceiver
Part number
8221710312
Part serial
40L7DH
Condition
Intermittent
Location
Wx Radar Sys
Part time
25,835 hours, 7,704 cycles
Stage of operation
CR
How discovered
9
Nature of condition
J
Precautionary procedure
O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

WXR (WEATHER RADAR FAIL) INDICATION WXR WOULD SHOW ON DISPLAY FOR SEVERAL MINUTES & THEN CLEAR. THIS HAPPENED APX 3 TIMES DURING FLIGHT. GROUNDED - YES. REMOVED & REPLACED WEATHER RADAR R/T REF B737-900 AMM 34-43-41 OPS NORMAL.