Narrative:

The USA sectional shows burwash as an open; magenta circle. No tower; no class D depiction. The garmin 396 does not depict class D. Neither has any indication that any communication is required. However; when I was talking to the edmonton shift manager at edmonton center the next day. He said that I should have called the burwash mandatory frequency when I landed at burwash. He said that I called whitehorse on 126.7 but that is not the correct mandatory frequency for burwash. I did not land at burwash. I did hear radio calls from what sounded like 2 other aircraft operating into or out of the burwash airport. I was calling whitehorse on 126.7 to get the WX at whitehorse; which was our destination. We flew from anc to cyxy non-stop. Whitehorse did not reply to my attempts to contact them when I flew past; east of burwash. The radio contact on the mandatory frequency is required by the FARS if you fly closer than 5 NM of burwash and below 5700 ft MSL (asl in canada). I believe I was higher than 5700 ft MSL; but I could be mistaken. The USA whitehorse sectional misleads a united states pilot into thinking that he or she does not need to establish radio contact. The canadian sectional shows a tiny 'M' (for mandatory frequency); but to final out the ht; lateral extent and dates and hours when radio calls are required; you have to read the canadian supplement for every little airport.

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Original NASA ASRS Text

Title: CESSNA C210 PLT ENRTE TRANSITS CYDB ARPT AREA.

Narrative: THE USA SECTIONAL SHOWS BURWASH AS AN OPEN; MAGENTA CIRCLE. NO TWR; NO CLASS D DEPICTION. THE GARMIN 396 DOES NOT DEPICT CLASS D. NEITHER HAS ANY INDICATION THAT ANY COM IS REQUIRED. HOWEVER; WHEN I WAS TALKING TO THE EDMONTON SHIFT MGR AT EDMONTON CTR THE NEXT DAY. HE SAID THAT I SHOULD HAVE CALLED THE BURWASH MANDATORY FREQ WHEN I LANDED AT BURWASH. HE SAID THAT I CALLED WHITEHORSE ON 126.7 BUT THAT IS NOT THE CORRECT MANDATORY FREQ FOR BURWASH. I DID NOT LAND AT BURWASH. I DID HEAR RADIO CALLS FROM WHAT SOUNDED LIKE 2 OTHER ACFT OPERATING INTO OR OUT OF THE BURWASH ARPT. I WAS CALLING WHITEHORSE ON 126.7 TO GET THE WX AT WHITEHORSE; WHICH WAS OUR DEST. WE FLEW FROM ANC TO CYXY NON-STOP. WHITEHORSE DID NOT REPLY TO MY ATTEMPTS TO CONTACT THEM WHEN I FLEW PAST; E OF BURWASH. THE RADIO CONTACT ON THE MANDATORY FREQ IS REQUIRED BY THE FARS IF YOU FLY CLOSER THAN 5 NM OF BURWASH AND BELOW 5700 FT MSL (ASL IN CANADA). I BELIEVE I WAS HIGHER THAN 5700 FT MSL; BUT I COULD BE MISTAKEN. THE USA WHITEHORSE SECTIONAL MISLEADS A UNITED STATES PLT INTO THINKING THAT HE OR SHE DOES NOT NEED TO ESTABLISH RADIO CONTACT. THE CANADIAN SECTIONAL SHOWS A TINY 'M' (FOR MANDATORY FREQ); BUT TO FINAL OUT THE HT; LATERAL EXTENT AND DATES AND HRS WHEN RADIO CALLS ARE REQUIRED; YOU HAVE TO READ THE CANADIAN SUPPLEMENT FOR EVERY LITTLE ARPT.

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.