Abstract :
Taxi light is one of the aircraft?s external lighting system that serves to
provide lighting in front of the aircraft that helps Pilots and Copilots when
maneuvering on the ground or when the aircraft is taxiing in the taxi way at night
so that visibility is maintained. Taxi light is located on the nose landing gear
precisely under the nose wheel steering actuator. This system has various problems.
One of the problems is when the taxi light does not operate correctly in all possible
modes.
The way to overcome the taxi light not operating correctly in all possible
modes in Boeing 737-800 NG aircraft is found in the Fault Isolation Manual by
doing a continuity checks, relay check and transformer check. Components used for
taxi light are found in the Illustration Part Catalogue for Boeing 737-800 NG
aircraft.
After continuity checks and checks on relays and transformers, it was
found that the condition of the relay has burnt and there were foreign objects in the
transformers. In accordance with Fault Isolation Manual, relay and transformer
must be replaced. Followed by a final check using the operational test. The results
of the operational test are marked with the taxi light on properly and it is certain
that the taxi light has worked well