B777-200 captain was informed of smoke in the cockpit while on break and returned to find the crew o...

Attributes
ACN	867024
Time
Date	200912
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZZ.ARTCC
State Reference	FO
Aircraft 1
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning Distribution System
Person 1
Function	Captain Pilot Not Flying
Experience	Flight Crew Last 90 Days 100 Flight Crew Total 15000 Flight Crew Type 1000
Events
Anomaly	Aircraft Equipment Problem Critical Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

Had just fallen asleep on break when flight attendant woke me to tell me to return to cockpit due to smoke in cockpit. Returned immediately to cockpit to find both pilots already with masks on running checklists. Extremely strong electrical smell; I felt it was unsafe to be in cockpit without oxygen. Took place at captain's position and donned mask and contacted dispatch. While talking to maintenance and dispatch smoke slowly started to dissipate and we got a status message right supply fan; realized we probably had that failure and this was confirmed by maintenance. Joint decision by all parties involved to divert and land overweight. As smoke and odor was clearing; we did not declare an emergency. Ran checklists; issued cabin advisory and landed overweight uneventfully. Failure was confirmed; supply fan replaced and continued to destination.

Original NASA ASRS Text

Title: B777-200 Captain was informed of smoke in the cockpit while on break and returned to find the crew on oxygen doing checklists. As the smoke began to dissipate the R Supply Fan was determined to be the culprit and the crew elected to divert for repairs.

Narrative: Had just fallen asleep on break when Flight Attendant woke me to tell me to return to cockpit due to smoke in cockpit. Returned immediately to cockpit to find both pilots already with masks on running checklists. Extremely strong electrical smell; I felt it was unsafe to be in cockpit without oxygen. Took place at Captain's position and donned mask and contacted Dispatch. While talking to Maintenance and Dispatch smoke slowly started to dissipate and we got a status message R supply fan; realized we probably had that failure and this was confirmed by Maintenance. Joint decision by all parties involved to divert and land overweight. As smoke and odor was clearing; we did not declare an emergency. Ran checklists; issued cabin advisory and landed overweight uneventfully. Failure was confirmed; supply fan replaced and continued to destination.

Data retrieved from NASA's ASRS site as of April 2012 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.

B777-200 captain was informed of smoke in the cockpit while on break and returned to find the crew on oxygen doing checklists. As the smoke began to dissipate the right supply fan was determined to be the culprit and the crew elected to divert for repairs.