Narrative:

Planned local flight from ZZZ to ZZZ1. Checked in with FSS for 'P zones' power plants and 'right zones' before flight. Arrival ZZZ1, tower advised I penetrated 8 NM of prohibited airspace. New expanded dimensions of prohibited airspace never mentioned on commercial chart service or in preflight briefing by FSS.

Google
 

Original NASA ASRS Text

Title: GA PLT ADVISED UPON ARR AT DEST THAT HE VIOLATED P-40 RESTR AREA.

Narrative: PLANNED LOCAL FLT FROM ZZZ TO ZZZ1. CHECKED IN WITH FSS FOR 'P ZONES' PWR PLANTS AND 'R ZONES' BEFORE FLT. ARR ZZZ1, TWR ADVISED I PENETRATED 8 NM OF PROHIBITED AIRSPACE. NEW EXPANDED DIMENSIONS OF PROHIBITED AIRSPACE NEVER MENTIONED ON COMMERCIAL CHART SERVICE OR IN PREFLT BRIEFING BY FSS.

Data retrieved from NASA's ASRS site as of July 2007 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.