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Direction générale de l'aviation civile (DGAC)

Service technique de l'aviation civile

Technical Information

The ADB SAFEGATE visual approach slope indicator (PAPI) type LPLI (or L-880 (L) / L-881 (L)) is equipped with a heated front glass, the emission of light sources is effective only after the preheating period which is three minutes.

During a start-up cycle following the loss of the power supply to the current regulator following a transfer of  power sources, passage from the main power supply to the auxiliary power supply, and vice versa, the a heated front glass is systematically reactivated and the maximum switch-over time is not satisfactory.

In order to use the ADB SAFEGATE LPLI PAPI, special operating conditions must be set up.


Editor STAC
Publication year 2020
Format A4
Pages number 10