B777 captain rejects takeoff at V1; after hearing a loud bang and noticing a power loss.

Attributes
ACN	733184
Time
Date	200703
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Flight Phase	ground : takeoff roll
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : cfi pilot : commercial pilot : flight engineer pilot : atp
Experience	flight time last 90 days : 250 flight time total : 23000 flight time type : 1000
ASRS Report	733184
Events
Anomaly	aircraft equipment problem : critical non adherence : company policies other anomaly other
Independent Detector	other flight crewa
Resolutory Action	flight crew : rejected takeoff
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Aircraft

Narrative:

During takeoff during automated V1 call; aircraft veered right and a loud explosion was heard. I noticed/felt a complete and sudden loss of power on right engine. I announced 'reject' and completed the reject procedure. All checklists were completed as crash fire rescue equipment crews arrived. Engine suffered a contained failure on the hp 1 section. No fire was observed. No evacuate/evacuation necessary. After an exterior examination by crash fire rescue equipment crew; I taxied off the runway; having stopped with 2000 ft remaining. Later towed to the gate. This was my second high speed reject in 29 yrs as an airline pilot. My flight and cabin crew remained calm and acted professionally. While this engine failure occurred at V1; my hand was still on the throttles; so my decision to reject rather than go flying (to me) was obvious.

Original NASA ASRS Text

Title: B777 CAPT REJECTS TKOF AT V1; AFTER HEARING A LOUD BANG AND NOTICING A PWR LOSS.

Narrative: DURING TKOF DURING AUTOMATED V1 CALL; ACFT VEERED R AND A LOUD EXPLOSION WAS HEARD. I NOTICED/FELT A COMPLETE AND SUDDEN LOSS OF PWR ON R ENG. I ANNOUNCED 'REJECT' AND COMPLETED THE REJECT PROC. ALL CHKLISTS WERE COMPLETED AS CFR CREWS ARRIVED. ENG SUFFERED A CONTAINED FAILURE ON THE HP 1 SECTION. NO FIRE WAS OBSERVED. NO EVAC NECESSARY. AFTER AN EXTERIOR EXAMINATION BY CFR CREW; I TAXIED OFF THE RWY; HAVING STOPPED WITH 2000 FT REMAINING. LATER TOWED TO THE GATE. THIS WAS MY SECOND HIGH SPD REJECT IN 29 YRS AS AN AIRLINE PLT. MY FLT AND CABIN CREW REMAINED CALM AND ACTED PROFESSIONALLY. WHILE THIS ENG FAILURE OCCURRED AT V1; MY HAND WAS STILL ON THE THROTTLES; SO MY DECISION TO REJECT RATHER THAN GO FLYING (TO ME) WAS OBVIOUS.

Data retrieved from NASA's ASRS site as of January 2009 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.