Narrative:

We were starting a descent from 6000 on downwind to the right runway. After scanning for traffic I noticed my pfd was blank (I was conducting a captain IOE from the first officer seat). I was turning the rheostat up when smoke starting coming out of the top of the pfd frame. I handed the QRH back to the relief pilot and pulled my oxygen mask out. Then a loud crackling noise similar to shattering glass filled the cockpit and sparks were seen behind the pfd and around the frame. The captain instructed me to advise ATC and get an immediate approach clearance. ATC gave us priority handling and we landed within about 8 minutes.

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Original NASA ASRS Text

Title: B747 flight crew experienced a failure of the First Officer's PFD during approach that was accompanied by loud arcing sounds and copious amounts of smoke. Within a minute the PFD circuit breaker tripped and the smoke began to dissipate. A normal landing ensued.

Narrative: We were starting a descent from 6000 on downwind to the right runway. After scanning for traffic I noticed my PFD was blank (I was conducting a Captain IOE from the FO seat). I was turning the rheostat up when smoke starting coming out of the top of the PFD frame. I handed the QRH back to the relief pilot and pulled my oxygen mask out. Then a loud crackling noise similar to shattering glass filled the cockpit and sparks were seen behind the PFD and around the frame. The Captain instructed me to advise ATC and get an immediate approach clearance. ATC gave us priority handling and we landed within about 8 minutes.

Data retrieved from NASA's ASRS site 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.