B777 flight crew reported the first officer became ill after returning from his break and was replac...

Narrative:

Flying pilot; first officer returned to the flight deck after his break; and took his seat for landing. He immediately complained of nausea and dizziness; wondering if he had food poisoning from food he recently consumed. Within a few minutes he asked the relief pilot to take his flying seat due to his dizziness and nausea. The first officer then replaced him. I authorized the first officer to continue flying; and he made an uneventful; normal approach and landing. I ensured the first officer was buckled in; and ready to land. I asked him several times if he was ok; and he assured me he was. However he did not look so well and I advised him to use oxygen. He refused. He seemed ok after landing; but as I was packing up to leave the flight deck; he seemed to deteriorate quite rapidly. I called operations to request medical assistance; and several flight attendants came to help. He was completely unconscious by now. They gave him oxygen and applied the aed; no shock but very low/no pulse. Fire dept emts came; treated him and took him to the hospital. Based on his complaints; and my observations I believe he experienced a stroke. Fas were very helpful possibly saving his life with their quick action. Aircraft control was never jeopardized; approach and landing were normal as possible under the conditions.

Original NASA ASRS Text

Title: B777 flight crew reported the First Officer became ill after returning from his break and was replaced by the Relief Officer. After landing; medical assistance was called when the ill pilot became unconscious.

Narrative: Flying pilot; First Officer returned to the flight deck after his break; and took his seat for landing. He immediately complained of nausea and dizziness; wondering if he had food poisoning from food he recently consumed. Within a few minutes he asked the relief pilot to take his flying seat due to his dizziness and nausea. The FO then replaced him. I authorized the FO to continue flying; and he made an uneventful; normal approach and landing. I ensured the FO was buckled in; and ready to land. I asked him several times if he was OK; and he assured me he was. However he did not look so well and I advised him to use oxygen. He refused. He seemed OK after landing; but as I was packing up to leave the flight deck; he seemed to deteriorate quite rapidly. I called operations to request Medical assistance; and several Flight attendants came to help. He was completely unconscious by now. They gave him oxygen and applied the AED; no shock but very low/no pulse. Fire Dept EMTs came; treated him and took him to the hospital. Based on his complaints; and my observations I believe he experienced a stroke. FAs were very helpful possibly saving his life with their quick action. Aircraft control was never jeopardized; approach and landing were normal as possible under the conditions.

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.

Attributes
ACN	1388543
Time
Date	201609
Local Time Of Day	1201-1800
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise Parked
Flight Plan	IFR
Person 1
Function	Pilot Not Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 260 Flight Crew Total 13815 Flight Crew Type 2286
Person 2
Function	Relief Pilot Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 11332 Flight Crew Type 2804
Events
Anomaly	Flight Deck / Cabin / Aircraft Event Illness

B777 flight crew reported the first officer became ill after returning from his break and was replaced by the relief officer. After landing; medical assistance was called when the ill pilot became unconscious.