SDR CALA2019080501317

Service difficulty report · Drive Unit · Boeing 777224

Difficulty date: August 5, 2019
Submitted: August 5, 2019
Operation: Air carrier
Aircraft: N78003
Make and model: Boeing 777224
Aircraft serial: 27579
Aircraft time: 100,939 hours, 10,060 cycles
System (JASC): 3442 · Weather Radar System
Part: Drive Unit
Part number: 6225136202
Condition: Failed
Location: Wx Radar Sys
Stage of operation: CL
How discovered: O
Nature of condition: J
Precautionary procedure: A

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

What was found

WINDSHEAR PRED EICAS STATUS PREDICTIVE WINDSHEAR FUNCTION OF THE WEATHER RADAR UNIT IS FAILE D. REMOVED AND REPLACED WEATHER RADAR DRIVE UNIT PER AMM 34-43-03-400-801. REF IPC 34-43-05-01. ACCOMPLISHED WXR ANTENNA DRIVE UNIT INSTALLATION TEST PER AMM 34-43-03-400-803 WITH PASSING RESULTS. ADD EMP:U163686,U180632 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1069589 SN OFF 3897 PEDESTAL, SCANN OFF 27-3417-9-0001 3897 ON 27-3417-9-0001 3297