Pilot reports CTAF frequency listing issue on commercial chart for spf.

Attributes
ACN	730875
Time
Date	200703
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : spf.airport
State Reference	SD
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Controlling Facilities	tracon : rca.tracon
Operator	general aviation : corporate
Make Model Name	Citation X
Operating Under FAR Part	Part 91
Navigation In Use	other
Flight Phase	descent : intermediate altitude
Route In Use	approach : visual
Flight Plan	IFR
Person 1
Affiliation	company : corporate
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 150 flight time total : 22000 flight time type : 3800
ASRS Report	730875
Person 2
Affiliation	government : military
Function	controller : approach
Events
Anomaly	other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : anomaly accepted
Supplementary
Problem Areas	Chart Or Publication
Primary Problem	Chart Or Publication
Situations
Chart	airport : spf.airport

Narrative:

The spf commercial chart CTAF frequency was listed as 122.7; another chart frequency was 122.8; and ellsworth approach said the CTAF was 122.9. We believe the correct CTAF for spf is 122.8.

Original NASA ASRS Text

Title: PLT RPTS CTAF FREQ LISTING ISSUE ON COMMERCIAL CHART FOR SPF.

Narrative: THE SPF COMMERCIAL CHART CTAF FREQ WAS LISTED AS 122.7; ANOTHER CHART FREQ WAS 122.8; AND ELLSWORTH APCH SAID THE CTAF WAS 122.9. WE BELIEVE THE CORRECT CTAF FOR SPF IS 122.8.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.