Service difficulty report · Antenna · Boeing 777222

Difficulty date
September 6, 2010
Submitted
September 8, 2010
Operation
Air carrier
Aircraft
N793UA
Make and model
Boeing 777222
Aircraft serial
26946
Aircraft time
57,972 hours, 8,485 cycles
Engine
Pwa PW40903
Part
Antenna
Part number
20414440402
Part serial
18
Condition
Failed
Location
Wx Radar Sys
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

WINDSHEAR SYS EITHER PREDICTIVE OR REACTIVE WINDSHEAR ALERTING FUNCTIONS ARE FAILED SUCH THAT WINDSHEAR ALERTING CAPABILITY IS REDUCED OR NOT AVAILABLE. A REACTIVE WINDSHEAR FAILURE WILL ONLY SET THE MESSAGE WITH THE REACTIVE WINDSHEAR OPTION ACTIVE. ADVISORY MSG-3444032 ACTIVE DC HARD MSG-3444031 ACTIVE AP HARD. REPLACED WEATHER RADAR ANTENNA ASSY. GROUND TEST PASS FOR BOTH.