1. Concerning the point about ICAO PAPI requirements & turbojets; it was the case in continental Europe that ILS G/S and PAPI's did not transmit at the same time. e.g. AMS. Is this still the case.
2. IMHO if both are transmitting the ILS G/S has priority. (Mark 1 eyeball even more so) However, I am constantly hearing F/O's saying they've been told to fly PAPI's when visual and ignore the G/S. This often causes a G/S 'fly down' about 300'agl. and then a big push and pull as a last minute dive is made to avoid a long landing having followed pAPI's. In IMC the A/P will fly the G/S. The G/S is flight checked more accurately than PAPI's, and monitored for accuracy. A misalignment of a PAPI is more likely than a G/S error.
Opinions?
Last edited by RAT 5; 11th June 2008 at 11:23.