Narrative:

Approaching atl in communication with approach; approach contacted me that I was violating class B airspace '135/25.' I was never given 'altitude at discretion' or any other instruction. I was being 'flight followed' at 4500 ft and in radar contact. I heard other aircraft contacted for same violation. I am used to flying through clt and they always assign altitude and headings when on assigned squawk code or; they give 'altitude at discretion' or to remain clear of class B or 'stay under class B.' since I was reported to atl to be at 4500 ft; and in communication; I did not think it wise to change altitude as I reported 4500 ft. This is mass confusion; right or wrong. The fact others were called for same violation seems to support this.

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Original NASA ASRS Text

Title: AN M20 PENETRATED ATL CLASS B AIRSPACE WITHOUT A CLRNC. RPTR INCORRECTLY ASSUMED FLT FOLLOWING ALLOW CLASS B TRANSIT.

Narrative: APCHING ATL IN COM WITH APCH; APCH CONTACTED ME THAT I WAS VIOLATING CLASS B AIRSPACE '135/25.' I WAS NEVER GIVEN 'ALT AT DISCRETION' OR ANY OTHER INSTRUCTION. I WAS BEING 'FLT FOLLOWED' AT 4500 FT AND IN RADAR CONTACT. I HEARD OTHER ACFT CONTACTED FOR SAME VIOLATION. I AM USED TO FLYING THROUGH CLT AND THEY ALWAYS ASSIGN ALT AND HDGS WHEN ON ASSIGNED SQUAWK CODE OR; THEY GIVE 'ALT AT DISCRETION' OR TO REMAIN CLR OF CLASS B OR 'STAY UNDER CLASS B.' SINCE I WAS RPTED TO ATL TO BE AT 4500 FT; AND IN COM; I DID NOT THINK IT WISE TO CHANGE ALT AS I RPTED 4500 FT. THIS IS MASS CONFUSION; RIGHT OR WRONG. THE FACT OTHERS WERE CALLED FOR SAME VIOLATION SEEMS TO SUPPORT THIS.

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.