Service difficulty report · Circuit Card · Boeing 777222

Difficulty date
November 22, 2011
Submitted
December 19, 2011
Operation
Air carrier
Aircraft
N785UA
Make and model
Boeing 777222
Aircraft serial
26954
Aircraft time
65,471 hours, 9,340 cycles
Engine
Pwa PW40903
Part
Circuit Card
Part number
8105053
Part serial
59
Condition
Failed
Location
Wing Anti Ice
Stage of operation
NR
How discovered
O
Nature of condition
J
Precautionary procedure
O

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

What was found

WING ANTI-ICE CONTROL CARD FAILURE. STATUS MESSAGE 01- ACTIVE CRUISE HARD; ACIPS CONTROL CARD (CENTER) HAS NO OUTPUT ON ACIPS ARINC 429 BUSS. DB- ARINC SIGNAL GATEWAY (LEFT), RSCF MESSAGE -3018893 ACTIVE ER HARD. REPLACED AIRFOIL AND COWL ICE PROTECTION SYS CONTROL CARD PER AMM. DOWNLOADED OPS TO THE CARD PER AMM. GROUND TESTED PER AMM. PASSED & MESSAGE DISAPPEARED.