Narrative:

I was en route from 39N to N07 traveling west of controled airspace of mmu and cdw; and below ewr airspace at 2700 ft MSL. It was VMC and I was flying by compass and GPS since the HSI was inoperable. I programmed the garmin 530 direct to N07. I began my descent. A message came up on the 530 that transfer of data couldn't be done. This was the first time I've flown this plane since updating the data card; and I thought this meant I couldn't properly navigate using the 530. I then decided to use the 430 garmin to navigate. Afterwards I noticed on the moving map that I was just inside mmu airspace at approximately 2400 ft. I then turned north; exited the airspace and flew direct N07. Contributing factors were unfamiliarity with the 530; low time in airplane; HSI inoperable; became distracted and lost situational awareness. More time in the plane; correctly updating the 530; and repair of HSI should be corrective.

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Original NASA ASRS Text

Title: PLT OF HIGH PERFORMANCE SMA PENETRATES CLASS D AIRSPACE WHILE ATTEMPTING TO RESOLVE ERROR CODES ON HIS GPS SYSTEM.

Narrative: I WAS ENRTE FROM 39N TO N07 TRAVELING W OF CTLED AIRSPACE OF MMU AND CDW; AND BELOW EWR AIRSPACE AT 2700 FT MSL. IT WAS VMC AND I WAS FLYING BY COMPASS AND GPS SINCE THE HSI WAS INOPERABLE. I PROGRAMMED THE GARMIN 530 DIRECT TO N07. I BEGAN MY DESCENT. A MESSAGE CAME UP ON THE 530 THAT TRANSFER OF DATA COULDN'T BE DONE. THIS WAS THE FIRST TIME I'VE FLOWN THIS PLANE SINCE UPDATING THE DATA CARD; AND I THOUGHT THIS MEANT I COULDN'T PROPERLY NAVIGATE USING THE 530. I THEN DECIDED TO USE THE 430 GARMIN TO NAVIGATE. AFTERWARDS I NOTICED ON THE MOVING MAP THAT I WAS JUST INSIDE MMU AIRSPACE AT APPROX 2400 FT. I THEN TURNED N; EXITED THE AIRSPACE AND FLEW DIRECT N07. CONTRIBUTING FACTORS WERE UNFAMILIARITY WITH THE 530; LOW TIME IN AIRPLANE; HSI INOPERABLE; BECAME DISTRACTED AND LOST SITUATIONAL AWARENESS. MORE TIME IN THE PLANE; CORRECTLY UPDATING THE 530; AND REPAIR OF HSI SHOULD BE CORRECTIVE.

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.