Hi Zenj,
VOR/DME is off but you do its approach with overlay procedure using the GPS and database in FMGC.
If you are doing a VOR/DME approach, then they must be serviceable else how do you monitor the consistency of the information given by the FMS?
Your OPS manual should specify that the PM should monitor the raw data and call out any discrepancies.
See 7.2
http://www.developpement-durable.gou...NSS__ENGv3.pdf
If the approach is labelled as "VOR/DME or GNSS Approach", then the VOR/DME could be off and you could fly the Approach using GPS and database in FMGC.
The clue is in the title of the Approach Plate.
Hi ACMS,
I'm surprised you can't find anything in your manuals to reflect 4.2.2 of:
https://www.casa.gov.au/sites/g/file.../ops/178-1.pdf
" The minima line on the procedure chart is indicated by either:
the navigation aid that provides the navigation service (NDB, VOR etc.); or
LNAV or LP for RNAV(GNSS) procedures. Australian charts currently show S-I but are progressively being amended to replace this term with LNAV. The use of the term LP will be dependent upon the introduction of an augmented GNSS service in Australia"