Service difficulty report · Light · Boeing 777222

Difficulty date
October 4, 2025
Submitted
October 6, 2025
Operation
Air carrier
Aircraft
N209UA
Make and model
Boeing 777222
Aircraft serial
30215
Aircraft time
101,355 hours, 12,170 cycles
Part
Light
Condition
Inoperative
Location
Zone 200
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

DUE TO CAB LT MALF CYC CAB/UTIL SW AND EMER EXIT LTS ILLUM FOUND MX MSG 24-12045 "ELCU (UTIL BUS R) IN P200 IS NOT IN COMMANDED POSITION" LATCHED. FOLLOWED FIM 24-51 TASK 807. ACP'D ELMS POWER MANAGEMENT PANEL, P210 INITIATED EU SELF TEST PER AMM TASK 45-10-00-860-811. TEST PASSED. MSG NOT ACTIVE. VERIFED R UTILITY BUS POWERED, CABIN LIGHTS FUNCTIONS, EMERGENCY LIGHTS AND CACPS OPERATION OK FOR SERVICE.