OCA question

[LEM]

Why on certain approach plates the OCA is reported and NOT on others?

I don't remember all this stuff:O

Today a doubt emerged during the briefing: the OCA for our runway was increased by a Notam above the usual DA.

Do we have to increase the DA accordingly or not???

Thanks

[Empty Cruise]

Hi LEM!

Yes - you need to increase DA(H) accordingly. This in turn will very likely increase your operational minima for the approach & therefore also the planning minima. :(

If the DA equals OCH - then OCH will not be stated seperately. If system minima are higher than OCH (CAT I = 200 ft. / OCH =, say, 153 ft.), the OCA will be stated.

On old PANS-Ops approaches (prior Ops 2, methinks, but not sure at all), there was no OCA(H), but instead an Obstacle Clearence Limit OCL :zzz:

Best regards fm
Empty:)