Narrative:

During flight; I was trying to look at the map on the ipad to get info and while trying to close in on the area; it froze up and I could not change the picture to get the information I wanted. Also after landing; my ipad does not switch to the taxi diagram even though it is selected and this time it had timed out so when I was given complicated taxi directions after getting clear of the runway; my ipad wasn't available and I had to rely totally on the first officer's for directions.

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Original NASA ASRS Text

Title: B747 Captain reported iPad malfunctions in flight and during taxi.

Narrative: During flight; I was trying to look at the map on the iPad to get info and while trying to close in on the area; it froze up and I could not change the picture to get the information I wanted. Also after landing; my iPad does not switch to the taxi diagram even though it is selected and this time it had timed out so when I was given complicated taxi directions after getting clear of the runway; my iPad wasn't available and I had to rely totally on the First Officer's for directions.

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.