Narrative:

Everything was normal until on climb out we were struck by lightning while flying through a small rain shower. None of the crew; myself included; thought the rain shower posed any threat to the aircraft and we were all surprised when it happened. Of the 4 main display panels 3 of them went blank. We leveled off at 6000 feet and evaluated the situation. I was the second international relief officer so from my seat I couldn't see the one remaining panel very well. I was told later that the panel had not auto switched into a combined mode and the captain had to manually switch to inbd du in order to restore his attitude display. We looked at the checklists that were presented and there was none about restoring a lost display. I looked through my ipad to see if the manual had a checklist for a lost display and couldn't find one. The captain had us use the loss of all displays checklist to see if that would be of some use since it was the closest we could find. That checklist had us reset the left ccr which caused a loss of the lower display unit for around 40 seconds and did not restore the left display panels. At that point the decision was made to return. We climbed to 9000 feet and I was tasked with running the fuel jettison checklist with the captain. The 'fuel to remain' was blank so we watched it manually and turned it off at the correct time. The rest of the flight was uneventful. Surprisingly the aircraft even showed land 3 on final approach as if nothing was wrong. Crew worked exceptionally well together.

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Original NASA ASRS Text

Title: First Officer reports being struck by lightning during initial climb; resulting in three of the four main display panels going blank. Attempts to restore the lost panels are not successful and the flight returns to the departure airport after dumping fuel.

Narrative: Everything was normal until on climb out we were struck by lightning while flying through a small rain shower. None of the crew; myself included; thought the rain shower posed any threat to the aircraft and we were all surprised when it happened. Of the 4 main display panels 3 of them went blank. We leveled off at 6000 feet and evaluated the situation. I was the second IRO so from my seat I couldn't see the one remaining panel very well. I was told later that the panel had not auto switched into a combined mode and the captain had to manually switch to INBD DU in order to restore his attitude display. We looked at the checklists that were presented and there was none about restoring a lost display. I looked through my iPad to see if the manual had a checklist for a lost display and couldn't find one. The captain had us use the Loss of All Displays checklist to see if that would be of some use since it was the closest we could find. That checklist had us reset the L CCR which caused a loss of the lower display unit for around 40 seconds and did not restore the left display panels. At that point the decision was made to return. We climbed to 9000 feet and I was tasked with running the fuel jettison checklist with the Captain. The 'fuel to remain' was blank so we watched it manually and turned it off at the correct time. The rest of the flight was uneventful. Surprisingly the aircraft even showed LAND 3 on final approach as if nothing was wrong. Crew worked exceptionally well together.

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.