Narrative:

I was relief pilot in captain's seat. We had notified the captain that his break was over a few mins earlier. Meanwhile; we checked in with gander. When they had radar contact; we were told to climb from FL350 to FL360. We initiated the climb and the captain called that he was ready to come in. When I stood up to let him in; my head bumped the overhead panel. We didn't see any switches moved and I went back to open the door. As I opened the door; the first officer shouted the autoplt had just dropped off line and all the captain's instruments were off. The captain quickly got in his seat; while the first officer leveled the aircraft at FL360. We'd lost the left radios; left flight instruments; txp; left eec; left pack; 1 utility bus; and could feel a gradual increase in cabin altitude; but the cabin altitude gauge was now inoperative at zero. The first officer mentioned to the captain that I'd hit my head on the panel; the captain was switching over to the other radio to initiate a descent; and I rechked the overhead panel and saw that the standby power switch was off. I turned it back to 'automatic' and the cabin pressure control came back and was at 7000-8000 ft. We were able to clear up all the other problems except the left engine eec. We ran the irregular procedure for that; contacted maintenance and dispatch; and explained what happened to the flight attendants. We continued with no further problems.

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Original NASA ASRS Text

Title: B767 RELIEF PLT VACATING THE CAPT SEAT UPON CREW CHANGE HIT HIS HEAD ON THE OVERHEAD PANEL TURNING THE STAND BY PWR SWITCH OFF.

Narrative: I WAS RELIEF PLT IN CAPT'S SEAT. WE HAD NOTIFIED THE CAPT THAT HIS BREAK WAS OVER A FEW MINS EARLIER. MEANWHILE; WE CHKED IN WITH GANDER. WHEN THEY HAD RADAR CONTACT; WE WERE TOLD TO CLB FROM FL350 TO FL360. WE INITIATED THE CLB AND THE CAPT CALLED THAT HE WAS READY TO COME IN. WHEN I STOOD UP TO LET HIM IN; MY HEAD BUMPED THE OVERHEAD PANEL. WE DIDN'T SEE ANY SWITCHES MOVED AND I WENT BACK TO OPEN THE DOOR. AS I OPENED THE DOOR; THE FO SHOUTED THE AUTOPLT HAD JUST DROPPED OFF LINE AND ALL THE CAPT'S INSTS WERE OFF. THE CAPT QUICKLY GOT IN HIS SEAT; WHILE THE FO LEVELED THE ACFT AT FL360. WE'D LOST THE L RADIOS; L FLT INSTS; TXP; L EEC; L PACK; 1 UTILITY BUS; AND COULD FEEL A GRADUAL INCREASE IN CABIN ALT; BUT THE CABIN ALT GAUGE WAS NOW INOP AT ZERO. THE FO MENTIONED TO THE CAPT THAT I'D HIT MY HEAD ON THE PANEL; THE CAPT WAS SWITCHING OVER TO THE OTHER RADIO TO INITIATE A DSCNT; AND I RECHKED THE OVERHEAD PANEL AND SAW THAT THE STANDBY PWR SWITCH WAS OFF. I TURNED IT BACK TO 'AUTO' AND THE CABIN PRESSURE CTL CAME BACK AND WAS AT 7000-8000 FT. WE WERE ABLE TO CLR UP ALL THE OTHER PROBS EXCEPT THE L ENG EEC. WE RAN THE IRREGULAR PROC FOR THAT; CONTACTED MAINT AND DISPATCH; AND EXPLAINED WHAT HAPPENED TO THE FLT ATTENDANTS. WE CONTINUED WITH NO FURTHER PROBS.

Data retrieved from NASA's ASRS site as of May 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.