SDR CALA2013092691466

Service difficulty report · Unknown · Boeing 777222

Difficulty date: September 25, 2013
Submitted: September 27, 2013
Operation: Air carrier
Aircraft: N772UA
Make and model: Boeing 777222
Aircraft serial: 26930
Aircraft time: 72,272 hours, 12,874 cycles
Engine: Pwa PW4077
System (JASC): 2300 · Communications System
Part: Unknown
Condition: Malfunctioned
Stage of operation: NR
How discovered: O
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

TROUBLESHOOTING SMC22, REPLACED BOTH OPIC AI & A2 CARDS BUT NO HELP. REINSTALLED BOTH INITIAL CARDS, REPLACED THE OPBC CONTROLLER, ALSO NO HELP. DASH NUMBERS NEED TO BE DOCUMENTED IN MRDATA AFTER REPAIR. MR23931 OFF-110 ON-63. PERFORMED MAT TEST AFTER OPBC REPLACED & LT OPAS MESSAGE DISPLAYED. AFTER TIME MESSAGE LT OPAS CLEARED. ACCOMPLISHED MAT TEST LT OPAS. TEST PASSED NO MAINT OR STATUS MESSAGE DISPLAYED.