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B737NG_Pilot
25th May 2023, 14:47
EASA CDFA (https://hub.easa.europa.eu/crt/docs/viewcrdattachment/cid_22874/aid_297/fmd_c5c90140f3d631e32aed0b6c6115f28a)

With reference to PARA 2.5

Approach with a nominal vertical profile using the CDFA technique:
The final approach track off-set ≤ 5degrees except for Category A and B aeroplanes, where the approach-track off-set is ≤ 15 degrees;

how does we conduct CDFA approaches using a B737 when the final approach track is offset by 11 degrees.

Central Scrutinizer
25th May 2023, 15:37
Well you don't, that's the whole point of the definition.

If the FAT is offset by 11 degrees you'll have an MDA and will then "dive and drive" as was done before CDFAs became a thing.

B737NG_Pilot
26th May 2023, 00:26
Well you don't, that's the whole point of the definition.

If the FAT is offset by 11 degrees you'll have an MDA and will then "dive and drive" as was done before CDFAs became a thing.


We do CDFA approaches on the 737 with 10 degree offsets.

Central Scrutinizer
26th May 2023, 10:34
We do CDFA approaches on the 737 with 10 degree offsets.

You fly them as if they were CDFA approaches but technically they arenít, I think thatís the subtle difference.

In this case youíd have an MDA instead of a DA.

Amadis of Gaul
26th May 2023, 15:20
how does we conduct CDFA approaches using a B737 when the final approach track is offset by 11 degrees.

What does your company policy say?

B737NG_Pilot
27th May 2023, 04:10
Well the paragraph mentioned above is used for determining the max and minimum visibility/rvr requirement.

Voidhawk
3rd Jun 2023, 21:53
I'm not familiar with the linked document, but it seems to be from the days of JAR OPS. CDFA can be flown as published, with any offset, unless company policy states otherwise.