Approaches Flashcards
OMA 8.23.4.i Performance Based Navigation Operations: Flight Crew Procedures: Temperature Corrections on PBN Procedures
Some aircraft types have the ability to compensate for temperature-differences from ISA automatically when flying RNAV/RNP approaches (e.g. the FLS function on the A350 and A380). When an RNAV/RNP approach is flown using the equipment and procedures which compensate for temperatures below ISA, the minimum temperature published on the relevant instrument approach chart is not applicable, and VNAV minima can be used. Likewise, LPV and LP minima can be used at any temperature. See FCOMs for fleet-specific procedures.
The automatic temperature-compensation systems fitted to British Airways’ aircraft only correct for temperature-deviations below ISA, so as to minimise the risk of CFIT. They do not correct for temperatures above ISA. Therefore, any maximum-temperature limitations published on PBN approach charts must
be observed.
