Service difficulty report · Drive Unit · Boeing 757222

Difficulty date
March 16, 2011
Submitted
April 4, 2011
Operation
Air carrier
Aircraft
N544UA
Make and model
Boeing 757222
Aircraft serial
25322
Aircraft time
72,885 hours, 20,991 cycles
Engine
Pwa PW2037
Part
Drive Unit
Condition
Malfunctioned
Location
Wx Radar
Component
Wx Radar
Component part number
20414440401
Stage of operation
IN
How discovered
9
Nature of condition
O
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 AUTO TILT SHOWS EXCESS GROUND RETURN. INBOUND CREW DESCRIBED WX RADAR DISPLAY AS OK BUT NOT FOLLOWING TRACK OF A-C IN AUTO MODE NOR RESPONDING CORRECTLY IN MANUAL MODE. REPLACED DRIVE UNIT.