DOC AIRBUS | AMM A320FNAVIGATION LIGHTS - DESCRIPTION AND OPERATION
** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL
1. General
The navigation light system gives an external, visual indication of the position of the aircraft and its direction of flight.
** ON A/C NOT FOR ALL The navigation light system gives an external, visual indication of the position of the aircraft and its direction of flight.
2. Component Location
Navigation Lights - Component Location ** ON A/C NOT FOR ALL
Navigation Lights - Component Location ** ON A/C NOT FOR ALL
Navigation Lights - Component Location ** ON A/C NOT FOR ALL
** ON A/C NOT FOR ALL Navigation Lights - Component Location ** ON A/C NOT FOR ALL Navigation Lights - Component Location ** ON A/C NOT FOR ALL Navigation Lights - Component Location ** ON A/C NOT FOR ALL | FIN | FUNCTIONAL DESIGNATION | PANEL | ZONE | ACCESS DOOR | ATA REF |
|---|---|---|---|---|---|
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| 9LA | LT-NAVIGATION, L WING TIP | 534AB | 534 | 33-41-11 | |
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| 9LA | LT-NAVIGATION, L WING TIP | 534 | 33-41-11 | ||
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| 10LA | LT-NAVIGATION, R WING TIP | 634AB | 634 | 33-41-11 | |
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| 10LA | LT-NAVIGATION, R WING TIP | 634 | 33-41-11 | ||
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| 13LA | XFMR-TAIL NAVIGATION LIGHT | 317 | 33-41-16 | ||
| 15LA | LT-NAVIGATION, TAIL | 317 | 33-41-15 | ||
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| 16LA | LIGHT ASSY-NAV AND STROBE, REAR | 317 | 33-41-17 | ||
3. System Description
A forward-facing navigation light assembly is installed at the leading edge of each wing tip. A rearward-facing navigation light assembly is installed on the tail cone, below the APU exhaust. Each light assembly has a different colored lens:
The navigation lights are controlled by the toggle switch 3LA which is installed on the overhead panel 25VU in the cockpit. The switch has three positions, which are identified NAV & LOGO 2/1/OFF.
A forward-facing LED navigation light assembly with Near End-Of-Life (NEOL) indication is installed at the leading edge of each wing tip. The NEOL indication is a blue LED light that flashes when the LED light assembly is in the last 950 hours of its pre-programmed life. The LED light assembly will become unserviceable after its pre-programmed life of 20000 hours.
A rearward-facing navigation light assembly is installed on the tail cone, below the APU exhaust.
Each light assembly has a different color:
The navigation lights are controlled with the toggle switch 3LA which is installed on the overhead panel 25VU in the cockpit. The switch has three positions, which are identified NAV & LOGO 2/1/OFF.
A forward-facing LED navigation light with Near End-Of-Life (NEOL) indication is installed at the leading edge of each sharklet. The NEOL indication is a blue LED light that flashes when the LED light is near degradation and you must replace it by a serviceable light before 1000 flight hours. When the NEOL indication comes on, the LED light will not be extinguished after 1000 flight hours but its performance can decrease to less than the certification requirements.
A rearward-facing navigation light assembly is installed on the tail cone, below the APU exhaust.
Each light assembly has a different color:
The navigation lights are controlled with the toggle switch 3LA which is installed on the overhead panel 25VU in the cockpit. The switch has three positions, which are identified NAV & LOGO 2/1/OFF.
A forward-facing LED navigation light with Near End-Of-Life (NEOL) indication is installed at the leading edge of each sharklet. The NEOL indication is a blue LED light that flashes when the LED light is near degradation and you must replace it by a serviceable light before 1000 flight hours. When the NEOL indication comes on, the LED light will not be extinguished after 1000 flight hours but its performance can decrease to less than the certification requirements.
One more LED navigation light, with NEOL indication, is installed on the tail cone, below the APU exhaust. For this NEOL indication there are four green LEDs that flash when the LED light assembly is in the last 1000 hours of its pre-programmed life. The LED light assembly will become unserviceable after its pre-programmed life of 20000 hours.
Each LED light assembly has a different color:
The navigation lights are controlled through toggle switch 3LA, which is installed on the overhead control and indicator panel 25VU.
The NAV & LOGO switch has three positions:
** ON A/C NOT FOR ALL A forward-facing navigation light assembly is installed at the leading edge of each wing tip. A rearward-facing navigation light assembly is installed on the tail cone, below the APU exhaust. Each light assembly has a different colored lens:
- The left wing-tip navigation light 9LA has a red lens
- The right wing-tip navigation light 10LA has a green lens
- The tail navigation light 15LA has a clear lens.
The navigation lights are controlled by the toggle switch 3LA which is installed on the overhead panel 25VU in the cockpit. The switch has three positions, which are identified NAV & LOGO 2/1/OFF.
A forward-facing LED navigation light assembly with Near End-Of-Life (NEOL) indication is installed at the leading edge of each wing tip. The NEOL indication is a blue LED light that flashes when the LED light assembly is in the last 950 hours of its pre-programmed life. The LED light assembly will become unserviceable after its pre-programmed life of 20000 hours.
A rearward-facing navigation light assembly is installed on the tail cone, below the APU exhaust.
Each light assembly has a different color:
- The left wing-tip navigation light 9LA has red LEDs
- The right wing-tip navigation light 10LA has green LEDs
- The tail navigation light 15LA has a clear lens.
The navigation lights are controlled with the toggle switch 3LA which is installed on the overhead panel 25VU in the cockpit. The switch has three positions, which are identified NAV & LOGO 2/1/OFF.
A forward-facing LED navigation light with Near End-Of-Life (NEOL) indication is installed at the leading edge of each sharklet. The NEOL indication is a blue LED light that flashes when the LED light is near degradation and you must replace it by a serviceable light before 1000 flight hours. When the NEOL indication comes on, the LED light will not be extinguished after 1000 flight hours but its performance can decrease to less than the certification requirements.
A rearward-facing navigation light assembly is installed on the tail cone, below the APU exhaust.
Each light assembly has a different color:
- The left sharklet navigation light 9LA has red LEDs
- The right sharklet navigation light 10LA has green LEDs
- The tail navigation light 15LA has a clear lens.
The navigation lights are controlled with the toggle switch 3LA which is installed on the overhead panel 25VU in the cockpit. The switch has three positions, which are identified NAV & LOGO 2/1/OFF.
A forward-facing LED navigation light with Near End-Of-Life (NEOL) indication is installed at the leading edge of each sharklet. The NEOL indication is a blue LED light that flashes when the LED light is near degradation and you must replace it by a serviceable light before 1000 flight hours. When the NEOL indication comes on, the LED light will not be extinguished after 1000 flight hours but its performance can decrease to less than the certification requirements.
One more LED navigation light, with NEOL indication, is installed on the tail cone, below the APU exhaust. For this NEOL indication there are four green LEDs that flash when the LED light assembly is in the last 1000 hours of its pre-programmed life. The LED light assembly will become unserviceable after its pre-programmed life of 20000 hours.
Each LED light assembly has a different color:
- The left wing-tip navigation-light 9LA has red LEDs.
- The right wing-tip navigation-light 10LA has green LEDs.
- The LED navigation light 16LA has white LEDs.
The navigation lights are controlled through toggle switch 3LA, which is installed on the overhead control and indicator panel 25VU.
The NAV & LOGO switch has three positions:
- OFF, 1 and 2.
4. Power Supply
Navigation Lights - Schematic ** ON A/C NOT FOR ALL
Navigation Lights - Schematic ** ON A/C NOT FOR ALL
Navigation Lights - Schematic ** ON A/C NOT FOR ALL
Navigation Lights - Schematic ** ON A/C NOT FOR ALL
The SERVICE BUS 2, 216XP supplies the navigation light systems 1 and 2 with 115VAC 400Hz. The power is supplied to each system through the related circuit breakers 1LA and 2LA. These circuit breakers are installed on the panel 122VU in the cockpit. Relays 6LA and 7LA connect the supply to the step-down transformers of the related navigation lights. These relays are installed on the panel 103VU.
** ON A/C NOT FOR ALL Navigation Lights - Schematic ** ON A/C NOT FOR ALL Navigation Lights - Schematic ** ON A/C NOT FOR ALL Navigation Lights - Schematic ** ON A/C NOT FOR ALL Navigation Lights - Schematic ** ON A/C NOT FOR ALL 5. Component Description
Navigation Wing Tip Light ** ON A/C NOT FOR ALL
Navigation Wing Tip Light ** ON A/C NOT FOR ALL
Navigation Wing Tip Light ** ON A/C NOT FOR ALL
Navigation Wing Tip Light ** ON A/C NOT FOR ALL Navigation Wing Tip Light ** ON A/C NOT FOR ALL Navigation Wing Tip Light ** ON A/C NOT FOR ALL A. Wing-Tip Navigation Light FIN: 9-LA FIN: 10-LA
For the flash tube technology, each wing-tip navigation light-assembly has two light units which operate independently. Each light unit has:
Power supply:
Each wing-tip LED navigation-light-assembly has:
Power supply:
Each LED navigation light-assembly (installed in the sharklet) has:
For the flash tube technology, each wing-tip navigation light-assembly has two light units which operate independently. Each light unit has:
- A step-down transformer
- A 115VAC, 1 A, 50 W, quartz lamp.
- A step-down transformer
- A 28VAC, 50 W, halogen lamp.
Power supply:
- 115VAC, 0.17A maximum - for each light channel
- 15 WATT per LED light assembly.
Each wing-tip LED navigation-light-assembly has:
- An electromagnetic-interference filter unit
- An NEOL control unit
- An LED control unit
- A light sensor unit
- An LED light assembly.
Power supply:
- 115VAC, 0.17A maximum - for each light channel
- 15 WATT for each LED light assembly.
Each LED navigation light-assembly (installed in the sharklet) has:
- An electromagnetic-interference filter unit
- An NEOL control unit
- An LED control unit
- A light sensor unit
- An LED light assembly.
B. Rear Navigation Light FIN: 15-LA FIN: 16-LA
The rearward-facing navigation light assembly contains two light units which operate independently. Each light unit has a 12V AC, 25 WATT, quartz lamp.
The related step-down transformer assembly 13LA contains two step-down transformers, which operate independently to supply their related light unit. This step-down transformer assembly is installed near the navigation light assembly, in the tail cone.
The rearward-facing navigation light assembly contains two light units which operate independently. Each light unit has a 12V AC, 25 WATT, quartz lamp.
The related step-down transformer assembly 13LA contains two step-down transformers, which operate independently to supply their related light unit. This step-down transformer assembly is installed near the navigation light assembly, in the tail cone.
The rearward-facing navigation light assembly contains two light units which operate independently. Each light unit has a 12V AC, 25 WATT, quartz lamp.
The related step-down transformer assembly 13LA contains two step-down transformers, which operate independently to supply their related light unit. This step-down transformer assembly is installed near the navigation light assembly, in the tail cone.
The rear navigation light-assembly 16LA has:
The rearward-facing navigation light assembly contains two light units which operate independently. Each light unit has a 12V AC, 25 WATT, quartz lamp.
The related step-down transformer assembly 13LA contains two step-down transformers, which operate independently to supply their related light unit. This step-down transformer assembly is installed near the navigation light assembly, in the tail cone.
The rearward-facing navigation light assembly contains two light units which operate independently. Each light unit has a 12V AC, 25 WATT, quartz lamp.
The related step-down transformer assembly 13LA contains two step-down transformers, which operate independently to supply their related light unit. This step-down transformer assembly is installed near the navigation light assembly, in the tail cone.
The rearward-facing navigation light assembly contains two light units which operate independently. Each light unit has a 12V AC, 25 WATT, quartz lamp.
The related step-down transformer assembly 13LA contains two step-down transformers, which operate independently to supply their related light unit. This step-down transformer assembly is installed near the navigation light assembly, in the tail cone.
The rear navigation light-assembly 16LA has:
- Two LED lights which operate independently.
- An electromagnetic-interference filter unit
- A power supply unit
- An NEOL switch and control unit
- An LED control unit
- A light sensor unit
- An LED light assembly.
6. Operation/Control and Indicating
With the switch 3LA set to position 1, the 115V AC SERVICE BUS 2, 216XP supplies power through:
Each step-down transformer in the assembly 13LA supplies 12V AC to its related tail navigation light. The light comes on.
With the switch 3LA set to position 2, the operation is almost the same, but this time the power is supplied through the circuit breaker 2LA and the relay 7LA.
With the switch 3LA set to OFF:
Each step-down transformer in the assembly 13LA supplies 12V AC to its related tail navigation light. The light comes on.
With the switch 3LA set to position 2, the operation is almost the same, but this time the power is supplied through the circuit breaker 2LA and the relay 7LA.
With the switch 3LA set to OFF:
With the control switch 3LA set to 1 position:
With the switch 3LA set to position 1, the 115V AC SERVICE BUS 2, 216XP supplies power through:
- The circuit breaker 1LA
- The switch 3LA (to energize the relay 6LA)
- The relay 6LA to the step-down transformers of the related navigation lights.
The step-down transformers in the wing-tip navigation light assemblies supply 28V AC to the related lamp. The lamp come on.
Each step-down transformer assembly 13LA supplies 12V AC to its related tail navigation light. The lamp comes on.
With the switch 3LA set to position 2, the operation is almost the same, but this time the power is supplied through the circuit breaker 2LA and the relay 7LA.
With the switch 3LA set to OFF: - The relay 6LA and 7LA are de-energized
- The lamps go off.
- The circuit breaker 1LA
- The switch 3LA (to energize the relay 6LA)
- The relay 6LA to the wing-tip LED navigation light assemblies 9LA(10LA). The lights come on
- The relay 6LA to the step-down transformer assembly 13LA.
Each step-down transformer in the assembly 13LA supplies 12V AC to its related tail navigation light. The light comes on.
With the switch 3LA set to position 2, the operation is almost the same, but this time the power is supplied through the circuit breaker 2LA and the relay 7LA.
With the switch 3LA set to OFF:
- The relays 6LA and 7LA are de-energized
- The lights go off.
- The circuit breaker 1LA
- The switch 3LA (to energize the relay 6LA)
- The relay 6LA to the sharklet navigation lights 9LA(10LA)
The lights come on - The relay 6LA to the step-down transformer assembly 13LA.
Each step-down transformer in the assembly 13LA supplies 12V AC to its related tail navigation light. The light comes on.
With the switch 3LA set to position 2, the operation is almost the same, but this time the power is supplied through the circuit breaker 2LA and the relay 7LA.
With the switch 3LA set to OFF:
- The relays 6LA and 7LA are de-energized
- The lights go off.
With the control switch 3LA set to 1 position:
- The 115VAC is supplied to the coil and contacts of the navigation 1 and logo lights relay 6LA through the circuit breaker 1LA.
- The wing-tip LED navigation lights 9LA and 10LA, and the LED navigation light of the rear navigation and strobe light assembly 16LA are supplied in 115VAC and operate.
- The 115VAC is not supplied to the coil of the navigation 2 and logo lights relay 7LA.
- The 115VAC is supplied to the coil and contacts of the navigation 2 and logo lights relay 7LA through the circuit breaker 2LA.
- The wing-tip LED navigation lights 9LA and 10LA, and the LED navigation light of the rear navigation and strobe light assembly 16LA are supplied in 115VAC and operate.
- The 115VAC is not supplied to the coil of the navigation 1 and logo lights relay 6LA.
- The 115VAC is not supplied to the coil of the navigation 2 and logo lights relay 7LA.
- The 115VAC is not supplied to the coil of the navigation 1 and logo lights relay 6LA.
The wing-tip LED navigation lights 9LA and 10LA do not operate.
The LED navigation light of the rear navigation and strobe light assembly 16LA does not operate.