Originally Posted by
wombat watcher
Not necessarily correct. If the forecast for PER was above Alternate Criteria and you had already passed PNR and you couldn’t carry an Alternate, you are entitled to continue and commence an approach.
It is a step by step assessment, always complying with the rules until you have the circumstances such that you can no longer comply with all of the rules.
eg. You carry 10’ hold for ATC and they tell you that it will be 16’ and you don’t have it.
You’re not just “entitled” to continue an approach. If you’ve truly passed a “point of NO return” then literally you have no other option than to land on the bitumen at that airport which may have suddenly gone down to 300 metres vis in unforecast fog, using the capabilities of your aircraft to their maximum possible potential to ensure the approach is as accurate as it can be. The only other alternative (wouldn’t really call it an alternative) is a Norfolk Island ditching situation.