SDR UALA2012072404007

Service difficulty report · Drive Unit · Boeing 767322

Difficulty date: July 20, 2012
Submitted: August 17, 2012
Operation: Air carrier
Aircraft: N677UA
Make and model: Boeing 767322
Aircraft serial: 30029
Aircraft time: 40,089 hours, 9,915 cycles
Engine: Pwa PW4056
System (JASC): 3442 · Weather Radar System
Part: Drive Unit
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

RADAR FAILED. WEATHER RADAR STAB MOMENTARILY ON LWR LT AND VAR. WX UPPER RT PRIOR TO FAIL. NO WEATHER RADAR FAIL MESSAGES ON SCREEN WITH WEATHER RADAR SYS STATUS MESSAGE. REPLACED THE WEATHER RADAR ANTENNA DRIVE UNIT. WEATHER RADAR OPS TEST IS GOOD.