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3 Answers

Change Notices of an IAP

Asked by: 1798 views Instrument Rating

I'm trying to see how an IAP has changed.  There was discussion of whether the MDA on a particular RNAV approach was increased. The FAA's site seems to only have the recent NOTAMs which have the replacement text for the last cycle but the change was last year.  Anyone know where to see the changes over time?  Is there discussion on why particular changes are made?

3 Answers

  1. John D. Collins on May 26, 2012

    Approaches are part of the FAR’s (see CFR 14 Part 97). As such, they are required to be included in the federal register for review by the public before they can become law. The documents that become the regulation are defined on 8260 forms.  About a month prior to the approach being flight tested, the approach prototype is posted to a FAA coordination website. On the coordination website, maps of the protected airspace, a prototype of the approach chart, 8260 forms and explanations for all changes are available.  This is a great resource, but it only remains on the website until the flight tests have been completed. The FAA has recently added the 8260 forms to their website, at least for RNAV approaches.  Of course, in the case of an error, an approach can be modified by a NOTAM with the change or indicate that it is NA for use until the approach chart is updated.


    Also, on the AeroNav website, when they publish a new chart, they provide a comparison function that will display the old and new chart and highlight the differences.  Unfortunately, they only provide this data for the 56 day period after the chart is initially published.


    If you can provide the approach airport identifier and the approach description, I will post a link to its most recent 8260 form if it is on their website. 

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  2. Jeremy H on May 26, 2012

    Ah, thanks.  That’s too bad the 8260 goes away.  I can understand the desire to not have obsolete charts in publication.  It’s the RNAV 35 at KCON (Concord, NH) – download.  Found what looks like when the original was published and when it was updated.

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  3. John D. Collins on May 27, 2012

    The AeroNav website no longer has the comparison for this approach verses the prior version.  The FAA Nabvigation Database Review has the current 8260 data and the approach chart at http://aeronav.faa.gov/ndbrfolderdetail.asp?key=2010092320837302003-CON&replace=1 
    The data from the Coordination website is long gone, but it would have had the maps and the reasons for any changes including the TERPS section references.  You can find the site at: http://aeronav.faa.gov/acifp.asp  I wish they would keep the data online as it is great for answering questions about a particular approach.  I watched the progress at my airport when the LPV approaches were added and saved the PDF.  I posted it to my public drop box so you can see what the data looks like when it is on the coordination website:
    To follow the status of approach development at an airport, search on the airport ID at http://avnweb.jccbi.gov/schedule/production 
    About 30 days before flight testing, the coordination site will have the goodies.

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