Narrative:

Returning home from the second roundtrip of the day (aoo-mmu-aoo) in an unpressurized piston twin, single pilot. The duty day began at XA00 with an XB00 takeoff for the first trip to an all-day wait at mmu. Return to aoo for a 1 1/2 hour wait at XH45. I only go into this much detail to describe the nature of the day. On my last return to aoo my brain was turning to mush. I had flown pretty close to 1/2 way back to aoo when I realized that I was being handed off to har approach at 5500 ft (wafdof). I reported on, wondering why abe hadn't mentioned the error for 50 mi of their airspace and climbing to 6500 ft. The har controller mentioned the altitude and I responded noting the climb. He must have wondered about my skill level because he also mentioned my proximity to a local restr area that was hot. I was aware of my location and passed clear to the north. I am convinced that fatigue was the primary factor in this event. My best response is to be mindful of all details on those long days.

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Original NASA ASRS Text

Title: HDG ALT RULE DEV FOR A SINGLE PA60 CRP PLT 35 E OF HAR, PA.

Narrative: RETURNING HOME FROM THE SECOND ROUNDTRIP OF THE DAY (AOO-MMU-AOO) IN AN UNPRESSURIZED PISTON TWIN, SINGLE PLT. THE DUTY DAY BEGAN AT XA00 WITH AN XB00 TKOF FOR THE FIRST TRIP TO AN ALL-DAY WAIT AT MMU. RETURN TO AOO FOR A 1 1/2 HR WAIT AT XH45. I ONLY GO INTO THIS MUCH DETAIL TO DESCRIBE THE NATURE OF THE DAY. ON MY LAST RETURN TO AOO MY BRAIN WAS TURNING TO MUSH. I HAD FLOWN PRETTY CLOSE TO 1/2 WAY BACK TO AOO WHEN I REALIZED THAT I WAS BEING HANDED OFF TO HAR APCH AT 5500 FT (WAFDOF). I RPTED ON, WONDERING WHY ABE HADN'T MENTIONED THE ERROR FOR 50 MI OF THEIR AIRSPACE AND CLBING TO 6500 FT. THE HAR CTLR MENTIONED THE ALT AND I RESPONDED NOTING THE CLB. HE MUST HAVE WONDERED ABOUT MY SKILL LEVEL BECAUSE HE ALSO MENTIONED MY PROXIMITY TO A LOCAL RESTR AREA THAT WAS HOT. I WAS AWARE OF MY LOCATION AND PASSED CLR TO THE N. I AM CONVINCED THAT FATIGUE WAS THE PRIMARY FACTOR IN THIS EVENT. MY BEST RESPONSE IS TO BE MINDFUL OF ALL DETAILS ON THOSE LONG DAYS.

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.