B777 captain reported failure of the right generator on climb out. The APU was used to power the rig...

Narrative:

We experienced an inflight failure of the right generator during on our initial climb out. As a result of this failure; we used the APU to power the right side of the electrical system for a sustained amount of time (12 hours) as an alternate/emergency backup to the failed generator and continued to ZZZZ. Coordination with dispatch and maintenance control was accomplished. Prior to our flaps being fully retracted; we experienced a loss of the right electrical generator (idg). Following the checklist procedure; we attempted a reset of the electrical generator one time. It initially appeared to have reset; but then within a few seconds it tripped again. This time in addition of the generator light illuminating; the CSD (constant speed drive) light also illuminated and appeared to automatically disconnect the CSD. We followed the checklist procedure and confirmed the disconnect of the CSD. We started the APU; and successfully used the APU for the next 12 hours to power the right side of the electrical system. Dispatch and operations were notified and the decision to continue to ZZZZ was agreed to by both the dispatcher; and captain with input from maintenance control. The extra fuel burn was less than what dispatch had told us; which worked out well as there was some initial concern on having enough fuel to meet our ETOPS min fuel required at our last critical point.

Original NASA ASRS Text

Title: B777 Captain reported failure of the right generator on climb out. The APU was used to power the right side of the electrical system and the flight continued to its destination.

Narrative: We experienced an inflight failure of the right generator during on our initial climb out. As a result of this failure; we used the APU to power the right side of the electrical system for a sustained amount of time (12 hours) as an alternate/emergency backup to the failed generator and continued to ZZZZ. Coordination with Dispatch and Maintenance Control was accomplished. Prior to our flaps being fully retracted; we experienced a loss of the right electrical generator (IDG). Following the checklist procedure; we attempted a reset of the electrical generator one time. It initially appeared to have reset; but then within a few seconds it tripped again. This time in addition of the generator light illuminating; the CSD (Constant Speed Drive) light also illuminated and appeared to automatically disconnect the CSD. We followed the checklist procedure and confirmed the disconnect of the CSD. We started the APU; and successfully used the APU for the next 12 hours to power the right side of the electrical system. Dispatch and Operations were notified and the decision to continue to ZZZZ was agreed to by both the dispatcher; and Captain with input from Maintenance Control. The extra fuel burn was less than what dispatch had told us; which worked out well as there was some initial concern on having enough fuel to meet our ETOPS min fuel required at our last critical point.

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	1405773
Time
Date	201611
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B777 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Initial Climb
Flight Plan	IFR
Component
Aircraft Component	AC Generator/Alternator
Person 1
Function	Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Experience	Flight Crew Last 90 Days 150 Flight Crew Total 19300 Flight Crew Type 6500
Events
Anomaly	Aircraft Equipment Problem Less Severe

B777 captain reported failure of the right generator on climb out. The APU was used to power the right side of the electrical system and the flight continued to its destination.