DOC AIRBUS | TSM A320FNavigation Lights - Near End Of Life
TASK 33-41-00-810-803-A
Navigation Lights - Near End Of Life
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
3. Fault Confirmation
Subtask 33-41-00-710-052-A ** ON A/C NOT FOR ALL
Subtask 33-41-00-810-055-A ** ON A/C NOT FOR ALL
Subtask 33-41-00-810-056-A ** ON A/C NOT FOR ALL
[Rev.8 from Aug 2018]
2026.04.04 04:31:58 UTC
Navigation Lights - Near End Of Life
1. Possible Causes
2. Job Set-up Information
A. Referenced Information
| REFERENCE | DESIGNATION |
|---|---|
| AMM 33-41-00-710-001 | Operational Test of the Navigation Lights |
| AMM 33-41-11-000-003 | Removal of the LED Light Module(s) of the Wing-Tip Navigation Light |
| AMM 33-41-11-000-802 | Removal of the Navigation Light - Sharklet |
| AMM 33-41-11-400-003 | Installation of the LED Light Module(s) of the Wing-Tip Navigation Light |
| AMM 33-41-11-400-802 | Installation of the Navigation Light - Sharklet |
| CMM 334844 |
Subtask 33-41-00-710-052-A ** ON A/C NOT FOR ALL
A. Do a check of the aircraft logbook for entries related to the NEOL indicator.
(2) If there is not an entry related to the NEOL indicator, do the operational test of the navigation lights AMM 33-41-00-710-001.
Subtask 33-41-00-710-052-C ** ON A/C NOT FOR ALL NOTE: For the wing navigation lights, the Near End Of Life (NEOL) indicator is a blue LED light that flashes when the light assembly is in the last 950FH of its pre-programmed life. The light assembly will become unserviceable after its pre-programmed life of 20000FH.
(1) If there is an entry related to the NEOL indicator, follow the instructions. (2) If there is not an entry related to the NEOL indicator, do the operational test of the navigation lights AMM 33-41-00-710-001.
A. Do a check of the aircraft logbook for entries related to the NEOL indicator.
(2) If there is not an entry related to the NEOL indicator, do the operational test of the navigation lights AMM 33-41-00-710-001.
Subtask 33-41-00-710-052-D ** ON A/C NOT FOR ALL NOTE: For the sharklet navigation lights, 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.
(1) If there is an entry related to the NEOL indicator, follow the instructions. (2) If there is not an entry related to the NEOL indicator, do the operational test of the navigation lights AMM 33-41-00-710-001.
A. Do a check of the aircraft logbook for entries related to the NEOL indicator.
(2) If there is not an entry related to the NEOL indicator, do the operational test of the navigation lights AMM 33-41-00-710-001.
4. Fault IsolationNOTE: For the sharklet navigation lights, 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.
NOTE: For the rear navigation and strobe light assembly, the Near End Of Life (NEOL) indicator is a green LED light that flashes when the light assembly is in the last 1000FH of its pre-programmed life. The light assembly will become unserviceable after its pre-programmed life of 20000FH.
(1) If there is an entry related to the NEOL indicator, follow the instructions. (2) If there is not an entry related to the NEOL indicator, do the operational test of the navigation lights AMM 33-41-00-710-001.
Subtask 33-41-00-810-055-A ** ON A/C NOT FOR ALL
A. If the NEOL light continues flashing:
(1) For the wing navigation lights you can take the decision to do the light module replacement AMM 33-41-11-000-003 and AMM 33-41-11-400-003.
Subtask 33-41-00-810-055-C ** ON A/C NOT FOR ALL (1) For the wing navigation lights you can take the decision to do the light module replacement AMM 33-41-11-000-003 and AMM 33-41-11-400-003.
A. If the NEOL light continues flashing:
(1) For the wing navigation lights you can take the decision to do the light module replacement AMM 33-41-11-000-802 and AMM 33-41-11-400-802.
Subtask 33-41-00-810-055-D ** ON A/C NOT FOR ALL (1) For the wing navigation lights you can take the decision to do the light module replacement AMM 33-41-11-000-802 and AMM 33-41-11-400-802.
A. If the NEOL light continues flashing:
(1) For the navigation lights you can take the decision to do the light module replacement AMM 33-41-11-000-802 and AMM 33-41-11-400-802.
(2) For the rear navigation and strobe light assembly you can make the decision to do the LED PWA solder assembly replacement CMM 334844.
5. Close-up(1) For the navigation lights you can take the decision to do the light module replacement AMM 33-41-11-000-802 and AMM 33-41-11-400-802.
(2) For the rear navigation and strobe light assembly you can make the decision to do the LED PWA solder assembly replacement CMM 334844.
Subtask 33-41-00-810-056-A ** ON A/C NOT FOR ALL
A. Put the aircraft back to its initial configuration.