Service difficulty report · Light Sys · Boeing 777FS2

Difficulty date
July 12, 2026
Submitted
July 13, 2026
Operation
Air carrier
Aircraft
N850FD
Make and model
Boeing 777FS2
Aircraft serial
37721
Aircraft time
65,023 hours, 10,879 cycles
Part
Light Sys
Condition
Malfunctioned
Location
Zone 200
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

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

What was found

CHECK FOUND WHEN THE OVERHEAD PANEL EMER LIGHTS SWITCH IN "ON" POSITION, THE EMERGENCY LIGHTS NOT ILLUMINATED. AMM: 33-51-00-5 RESET THE CB'S AND PERFORMED EMERGENCY LIGHTS - OPERATIONAL TEST WITH THE CONTROL SWITCH ON THE OVERHEAD PANEL REF AMM33-51-00-5, TEST NORMAL.

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