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4 Answers

IFR- “Inoperative Table”

Asked by: 4624 views FAA Regulations

Regarding the LOC/DME runway 12 approach at KBCB: There is a notation in the briefing section "Inoperative table does not apply".

I understand the purpose of the inoperative table as it relates to raising minimums when approach lighting (or other items) is out of service.

However, in this instance for KBCB, does "Inoperative table does not apply" indicate that this approach is not able to be used if the approach lighting system is out of service?   If this is true, why can't the mins. simply be raised which is usually the case when approach lighting is out of service?

Thank you for the feedback.



4 Answers

  1. John D. Collins on Apr 05, 2013

    No, the approach may be flown regardless if the ODALS approach light system is inoperative

    When the inop table applies, it only affects the visibility requirements. The approach light system reduces visibility requirements because the lights are extended from the threshold such that they may be seen without actually being able to see the runway threshold. In a more typical localizer approach, the visibility requirement would be 1/2 mile and the inop table would increase the requirement to 3/4 of a mile. In this case, the visibility requirement is already at 1 SM, so as one nears the MAP, the 1 SM visibility allows the runway to be seen with or without the approach lights, therefore, no penalty needs to be added.

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  2. Dan Chitty on Apr 05, 2013


    Thank you very much for the clear explanation. I now understand.



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  3. tommytom on Aug 16, 2014

    Where is the inoperative table found?

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  4. Mark Kolber on Aug 16, 2014


    If you are using FAA charts, open the Terminal Procedures book (the one that has the approach charts, SIDs and STARS in it?) and look at the Table of Contents. Pretty well hidden, huh? 🙂

    If you are using Jepp charts, it’s on the approach chart itself.

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