SDR UALA2010050301497

Service difficulty report · Circuit Card · Boeing 777222

Difficulty date: May 3, 2010
Submitted: May 3, 2010
Operation: Air carrier
Aircraft: N775UA
Make and model: Boeing 777222
Aircraft serial: 26947
Aircraft time: 59,294 hours, 10,882 cycles
Engine: Pwa PW4077
System (JASC): 3150 · Central Warning
Part: Circuit Card
Part number: 285W02181
Part serial: 26
Condition: Failed
Location: La2
Stage of operation: NR
How discovered: O
Nature of condition: N
Precautionary procedure: O

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

What was found

STATUS MESSAGES: OPIC RA2, LA2, AND LA1 DISPLAYED. MAINT MSG'S 23-92010, 23-92020, 23-47010, 23-47020, 23-91010 AND 23-91020 ON MAT. TRIED INTERFACE CARD AND OVERHEAD BUSS CONTROLLER-NO HELP. REINSTALLED ORIGINAL UNITS. LT A2 INTERFACE CARD IAW MM. MSGS CLEARED. ALL MAT GND TESTS PASSED.