Narrative:

I had just landed at fmy on an IFR cross country. We taxied back and took off on our return flight. I called ft myers approach trying to obtain our clearance back to ft pierce. Passing about 1500 ft MSL, I was able to make contact with approach. The controller asked my location. He then informed me that I had violated the class C airspace. At this point, I had been flying for a few hours and was tired. I didn't realize that I was that close. I turned north and rechked my chart by using a white flashlight. I had been using a blue flashlight up to this point. When using the white light, I could clearly see the class C. I use commercial charts and they depict class C in blue, so with my blue flashlight it was invisible to me. The major factor that led to the incident was fatigue and low situational awareness. The blue light was a contributing factor. I now use a dim white light so I can see clearly but still maintain night vision. And I pay much more attention to my level of alertness.

Google
 

Original NASA ASRS Text

Title: UNAUTH PENETRATION OF CLASS C AIRSPACE OF RSW BY A BE76 CFI ON A NIGHT XCOUNTRY FROM FMY, FL.

Narrative: I HAD JUST LANDED AT FMY ON AN IFR XCOUNTRY. WE TAXIED BACK AND TOOK OFF ON OUR RETURN FLT. I CALLED FT MYERS APCH TRYING TO OBTAIN OUR CLRNC BACK TO FT PIERCE. PASSING ABOUT 1500 FT MSL, I WAS ABLE TO MAKE CONTACT WITH APCH. THE CTLR ASKED MY LOCATION. HE THEN INFORMED ME THAT I HAD VIOLATED THE CLASS C AIRSPACE. AT THIS POINT, I HAD BEEN FLYING FOR A FEW HRS AND WAS TIRED. I DIDN'T REALIZE THAT I WAS THAT CLOSE. I TURNED N AND RECHKED MY CHART BY USING A WHITE FLASHLIGHT. I HAD BEEN USING A BLUE FLASHLIGHT UP TO THIS POINT. WHEN USING THE WHITE LIGHT, I COULD CLRLY SEE THE CLASS C. I USE COMMERCIAL CHARTS AND THEY DEPICT CLASS C IN BLUE, SO WITH MY BLUE FLASHLIGHT IT WAS INVISIBLE TO ME. THE MAJOR FACTOR THAT LED TO THE INCIDENT WAS FATIGUE AND LOW SITUATIONAL AWARENESS. THE BLUE LIGHT WAS A CONTRIBUTING FACTOR. I NOW USE A DIM WHITE LIGHT SO I CAN SEE CLRLY BUT STILL MAINTAIN NIGHT VISION. AND I PAY MUCH MORE ATTN TO MY LEVEL OF ALERTNESS.

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.