All lights do not light.
Notify Field Maintenance.
One or more tail lights or rear worklight will not light or are dim or flickering.
Check light assembly for damage.
If light assembly is damaged, notify Field Maintenance.
If light assembly is not damaged and problem still exists, proceed to step 2.
Check for blown lighting fuse at fuse panel (WP 0022).
If fuse is bad, request a replacement fuse from Field Maintenance.
If fuse is good, proceed to step 3.
Swap suspect relay with known working relay to determine if suspect relay is functional.
If relay is bad, request a replacement relay from Field Maintenance.
If relays are OK, proceed to step 4.
Check for dirty or corroded connectors at back of light.
If connectors are dirty or corroded, clean them (WP 0020).
If problem still exists, proceed to step 5.
If connectors are not dirty or corroded, proceed to step 5.
Check for broken lead wires or loose connections.
If lead wires are broken, notify Field Maintenance.
If connections are not loose or broken and problem still exists, notify Field Maintenance.