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5 Answers

Inop table KSAN LOC Rwy 9

Asked by: 1697 views Airspace, FAA Regulations, Instrument Rating

All,

For the ILS Y or LOC Y Rwy 9 at KSAN...I see in the notes it indicates that “For inop ALS, increase all Cats visibility to 2 1/2”.   The next line says “# Inop table does not apply to S-ILS 9”

Looking at the approach minimums there are:  #S-ILS 9 shows 3/4sm minimums while S-ILS 9 shows 2sm for visibility mins.  

The wording in the notes is a bit confusing.  Does “# Inop table does not apply to S-ILS 9” mean that the vis penalty for Inop ALS need not apply to the 3/4mi or the 2mi?   I am not clear on which approach mins to derive alternate minimums from.

Thanks in advance for any and all feedback.

5 Answers

  1. Best Answer


    Jeff Baum on Mar 15, 2021

    It is a bit confusing, until you read the entire note section of the Briefing Strip. A # or * in the minimums section indicate an extra or additional requirement to use those minimums. If you look at the Missed Approach section you’ll see a #note there as well. Recall that standard climb gradient for all instrument procedures, unless otherwise noted, is a minimum of 200 feet per nautical mile. The ability to fly the ILS 9S to the lower minimums requires the ability to maintain a minimum climb gradient of 270 feet per NM up to 4000 feet. If you can not meet that climb gradient, you must use the higher ILS 9S minimums. So, if you are able to meet the steeper climb gradient, then you may use the lower minimums and may disregard the #note about raising the minimums with ALS INOP. However, if you are using the higher ILS 9S minimums and the ALS is INOP, then you must increase the minimums.

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  2. spwool on Mar 15, 2021

    Thank you very much for clarifying this.

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  3. spwool on Mar 16, 2021

    It just rang a bell—Is this the Jeff Baum that would jumpseat to SHR on the DAC D328J?

    If you’re the same guy then I ran you as a jumpseater many a times working as a Dispatcher there. Small world!

    Thanks again for the input,
    Sean

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  4. Jeff Baum on Mar 16, 2021

    Yup! Thanks me!! Good to hear from you Sean. I thank you for all of the jumpsuits over the years. I’m still commuting, but changed to the LAX base and now on the 777. Are you instructing in DEN? Teaching is one of life’s true joys.

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  5. spwool on Mar 18, 2021

    Not instructing per se—just refreshing on approach plates a little bit. San Diego has some unique procedures and makes good practice.

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