I should have a new IFR Supplement today. I'm going to compare ZJX with the AFF file. Dollar to a doughnut it's the same info.
As far as I can tell they have always used the AFF data for the Facilities Directories (Green Books) and Enroute Charts.
As just one example of the errors found in the AFF, back in April I compared the High Altitude data in the AFF for ZJX with official ZJX ARTCC sector charts as well as confirmed frequencies from personal monitoring. These are the errors that I noted. (I posted this over at LiveATC as well).
AFF data that is wrong = changes required to correct
ALMA 133.3 HIGH = change, ULTRA-HIGH
ALMA 135.975 ULTRA-HIGH = change, HIGH
CHARLESTON 133.625 HIGH = change, ULTRA-HIGH
CHARLESTON 132.475 ULTRA-HIGH = change, frequency 120.125
COLUMBIA 134.975 ULTA-HIGH = add
DAYTONA BEACH 134.850 LOW/HIGH = add
GAINESVILLE 135.65 HIGH = change, frequency 128.425 ULTRA-HIGH
JACKSONVILLE 134.85 ULTRA-HIGH = change, LOW/HIGH
LAKE CITY 133.875 HIGH = add
MYRTLE BEACH 135.05 ULTRA-HIGH OCEANIC = change, LOW/HIGH OCEANIC
PANAMA CITY 135.925 LOW/HIGH = add
SAINT AUGUSTINE 126.35 HIGH = change, LOW/HIGH
SAINT AUGUSTINE 132.825 HIGH = change, ULTRA-HIGH
SAINT AUGUSTINE 134.575 ULTRA-HIGH = change, frequency 135.450
SAVANNAH 132.425 HIGH = change, ULTRA-HIGH
TALLAHASSEE 128.625 LOW = change, ULTRA-HIGH
VALDOSTA 135.625 HIGH = add
There are many errors with the low altitude data as well.