L-852C-D ITCL Taxiway Centerline Inset Lights
Troubleshooting
©
2007 Siemens Airfield Solutions
96A0311F
Page 5-3
All rights reserved
Issued 3/05
Moisture in lighting fixture
1. Open light assembly. Refer to
Opening
optical assembly
in the
Repair
section.
2. Check for cause of leakage (dirty or damaged
seal mating surfaces, defective seals, cracked
or broken prism, loose screws or damaged
wire insulation).
3. Clean, dry, inspect, or replace damaged
components.
5. Flashing LED
Incorrect current
Check the current to the fixture to ensure it is
within FAA specifications for the selected step.
If not, adjust the CCR or repair circuit issues.
Ensure that the isolation transformers have
adequate capacity to run the fixture, especially
if using arctic kit.
Underloaded CCR
For Thryristor controlled CCRs, ensure that the
CCR has a load at least 25% of maximum
output. If not, reduce the output taps to a
lower maximum voltage.