B787 flight crew reported a cabin air compressor failure resulted in cabin fumes and a diversion.

Attributes
ACN	1579651
Time
Date	201809
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	B787 Dreamliner Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Cruise
Flight Plan	IFR
Component
Aircraft Component	Air Conditioning Compressor
Person 1
Function	Captain Pilot Not Flying
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Total 11326 Flight Crew Type 449
Person 2
Function	Pilot Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Multiengine Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Flight Deck / Cabin / Aircraft Event Smoke / Fire / Fumes / Odor

Narrative:

I was the captain and I was on rest break. My co-pilot woke me and told me the relief pilots had called him and told him that there was an electrical burning smell in the cockpit and cabin. When I arrived back in the cockpit; the relief pilots told me we had lost our #1 left cabin air compressor (cac). We assumed that the fumes we were smelling was from the failed cac. We contacted dispatch and had them patch us in to [maintenance control]. We wanted to run the fumes removal checklist. Together we ran the fumes removal checklist; but there were still strong electrical fumes in the cockpit. We talked to the [chief pilot] and together we felt the best and safest course of action was to divert.

Original NASA ASRS Text

Title: B787 flight crew reported a cabin air compressor failure resulted in cabin fumes and a diversion.

Narrative: I was the Captain and I was on rest break. My co-pilot woke me and told me the relief pilots had called him and told him that there was an electrical burning smell in the cockpit and cabin. When I arrived back in the cockpit; the relief pilots told me we had lost our #1 L Cabin Air Compressor (CAC). We assumed that the fumes we were smelling was from the failed CAC. We contacted Dispatch and had them patch us in to [Maintenance Control]. We wanted to run the fumes removal checklist. Together we ran the fumes removal checklist; but there were still strong electrical fumes in the cockpit. We talked to the [Chief Pilot] and together we felt the best and safest course of action was to divert.

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.