Service difficulty report · Transceiver · Boeing 737990ER

Difficulty date
September 16, 2017
Submitted
September 20, 2017
Operation
Air carrier
Aircraft
N492AS
Make and model
Boeing 737990ER
Aircraft serial
44110
Aircraft time
7,253 hours, 2,484 cycles
Part
Transceiver
Part number
8221710311
Part serial
477KT3
Condition
Failed
Location
Weather Radar
Part time
7,251 hours, 2,483 cycles
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
K

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

What was found

WXR FAIL FLAG ON LIGHT WITH WX ON IN AUTO, NOT AUTO, WX, & WXTT ON FIRST OFFICERS SIDE. GROUNDED - YES. ACCOMPLISHED WEATHER RADAR SYSTEM BITE REFERENCE FIM 34-43 TASK 801. BITE SHOWS WEATHER RADAR R/T AND FAULT. PERFORMED FIM 34-43 TASK 803. REMOVED AND REPLACED WEATHER RADAR RECEIVER/TRANSMITTER PER AMM 34-43-41-000-801 AND 34-43-41-400-801. OPERATIONAL TEST NORMAL, REF AMM 34-43-00-802-001.