Maintenance Guideline

The Airport Lighting Company LED PAPI is designed for years of trouble-free operation.
The following are recommended regular maintenance actions.

Recommended Regular Maintenance Actions

- Compare and track actual tilt angle (displayed) to set tilt angle by pressing STATUS.
- Clean the lens.
- Clean the photosensor cover.
- Check all mounting hardware and tighten as required.
- Check for any LED failures by holding a piece of paper in front of the lens where the LED pattern can be clearly seen.

LED Failure Inspection and Response

IF failures are observed, make sure a spare LED board is available.
The unit will cease to operate before 25% of either color have failed and the board will need to be replaced.

Airport Lighting Company | L-880(L), L-881(L) Precision Approach Path Indicator Lights (PAPI)