<< >> NASA ASRS Report 956051, June 2011

A B777's right idg failed after takeoff so the captain declared an emergency and returned to the departure airport.

Attributes
ACN	956051
Time
Date	201106
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZZ.TRACON
State Reference	FO
Environment
Flight Conditions	VMC
Light	Dusk
Aircraft 1
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	Climb
Flight Plan	IFR
Component
Aircraft Component	AC Generation
Person 1
Function	Pilot Flying Captain
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	Pilot Not Flying First Officer
Events
Anomaly	Aircraft Equipment Problem Critical

Narrative:

After takeoff we experienced a generator drive disconnect. After performing the checklist; I elected to return to the departure airport because I was not sure of the nature of the damage and we would not have enough fuel for the trip to our domestic destination. We declared an emergency and informed departure that we will be returning to the departure airport and making an overweight landing and request airport rescue and fire fighters to stand by and will be dumping fuel. We dumped fuel to facilitate a 30 flap landing in order to minimize ref speed. We accomplished the overweight landing checklist; emergency landing checklist and briefed the flight attendants (test brief). We returned to ZZZZ; stopped on the runway and had brakes and tires inspected by airport rescue and fire fighters. We then returned to the parking area.

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Original NASA ASRS Text

Title: A B777's right IDG failed after takeoff so the Captain declared an emergency and returned to the departure airport.

Narrative: After takeoff we experienced a generator drive disconnect. After performing the checklist; I elected to return to the departure airport because I was not sure of the nature of the damage and we would not have enough fuel for the trip to our domestic destination. We declared an emergency and informed Departure that we will be returning to the departure airport and making an overweight landing and request Airport Rescue and Fire Fighters to stand by and will be dumping fuel. We dumped fuel to facilitate a 30 flap landing in order to minimize ref speed. We accomplished the overweight landing checklist; emergency landing checklist and briefed the flight attendants (TEST brief). We returned to ZZZZ; stopped on the runway and had brakes and tires inspected by Airport Rescue and Fire Fighters. we then returned to the parking area.

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.