Service difficulty report · Scanner · Boeing 747422

Difficulty date
November 19, 2011
Submitted
December 8, 2011
Operation
Air carrier
Aircraft
N120UA
Make and model
Boeing 747422
Aircraft serial
29166
Aircraft time
51,968 hours, 6,129 cycles
Engine
Pwa PW4056
Part
Scanner
Part number
20414440402
Part serial
41
Condition
Faulty
Location
Weather Radar
Stage of operation
IN
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

WX RADAR SYSTEM FAILURE, FLIGHT DIVERTED. RADAR FAIL MSG INITIALLY DISPLAYED ON PFD. STATUS MSG 'WXR SYS' DISPLAYED WITH MAINT MSG ON AHM 34005 AND 34025 BOTH L AND R SYS ANT DRIVE FAIL. ATTEMPTED MULTIPLE RESETS, NO HELP. REPLACED SCANNER ASSY WITH BORROWED HAWAIIAN AIR PART. ANTENNA PLATE IS UAL PART. CHECKS OKAY.