Service difficulty report · Module · Boeing 777222

Difficulty date
January 23, 2011
Submitted
January 26, 2011
Operation
Air carrier
Aircraft
N777UA
Make and model
Boeing 777222
Aircraft serial
26916
Aircraft time
63,922 hours, 11,779 cycles
Engine
Pwa PW4077
Part
Module
Part number
285W00271
Part serial
122
Condition
Faulty
Location
Nr 1
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

UNABLE TO CONTROL CABIN LIGHTING DUE TO "ECS NO COMM" MESSAGE ON CACP. L1 DOOR CACP INOP. REPLACED ZMU 1 IAW MM, GROUND CHECK NORMAL.