French and international regulations require PAPI units elevation setting angles to be periodically checked. French technical guide on airfield lighting maintenance details the various applicable methods to achieve this goal: flight-checking, lift platform or alidade method. The first two methods are required for the initial operation and for any five-yearly check of PAPI units but they are particularly time-consuming and costly.
Newly emerged and more advantageous technologies allowing to perform these checks need to be assessed and validated by the supervisory Authority.
|Price printed version||Free|