B747-400 first officer lost control of the aircraft on a crosswind takeoff at vhhh.

Attributes
ACN	517140
Time
Date	200107
Day	Sat
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : vhhh.airport
State Reference	FO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B747-400
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 : atp
Experience	flight time last 90 days : 130 flight time total : 18000 flight time type : 614
ASRS Report	517140
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : multi engine pilot : instrument pilot : commercial
Experience	flight time type : 1828
ASRS Report	517477
Events
Anomaly	inflight encounter : weather inflight encounter other non adherence : company policies non adherence : far non adherence : published procedure other anomaly other
Independent Detector	other flight crewa other flight crewb
Resolutory Action	flight crew : regained aircraft control other
Consequence	other
Supplementary
Problem Areas	Flight Crew Human Performance Weather
Primary Problem	Flight Crew Human Performance

Narrative:

Takeoff runway 25 almost exited runway near V1 as first officer (flying) rudder application insufficient to hold runway. I (captain) took over control of aircraft near V1 and returned aircraft to centerline and continued to takeoff, returning aircraft to first officer after stable in climb. After taking over control, I did not think we were going to stay on runway for a couple of seconds. Once control established, almost aborted as saw we were still V1, 5 KTS but runway looked kinda short now so continued takeoff. Thoughts: first officer looked tentative at takeoff. Should have inquired more. He seemed unsure. I thought we had bought it! Supplemental information from acn 517149: day, VMC takeoff roll on hkg runway 25L, first officer was flying, I was relief pilot directly behind flying first officer. Left to right crosswind of about 15 KTS. Takeoff roll seemed normal until approaching V1, we quickly began to veer to the left and left wing came up significantly. I glanced at first officer's control input and saw about 20 degrees of yolk displacement to the right. The aircraft got airborne briefly, then straightened out, moved back to centerline and landed again, continuing the takeoff roll, now above V1 but below vr. The aircraft rotated at vr and flew away.

Original NASA ASRS Text

Title: B747-400 FO LOST CTL OF THE ACFT ON A XWIND TKOF AT VHHH.

Narrative: TKOF RWY 25 ALMOST EXITED RWY NEAR V1 AS FO (FLYING) RUDDER APPLICATION INSUFFICIENT TO HOLD RWY. I (CAPT) TOOK OVER CTL OF ACFT NEAR V1 AND RETURNED ACFT TO CTRLINE AND CONTINUED TO TKOF, RETURNING ACFT TO FO AFTER STABLE IN CLB. AFTER TAKING OVER CTL, I DID NOT THINK WE WERE GOING TO STAY ON RWY FOR A COUPLE OF SECONDS. ONCE CTL ESTABLISHED, ALMOST ABORTED AS SAW WE WERE STILL V1, 5 KTS BUT RWY LOOKED KINDA SHORT NOW SO CONTINUED TKOF. THOUGHTS: FO LOOKED TENTATIVE AT TKOF. SHOULD HAVE INQUIRED MORE. HE SEEMED UNSURE. I THOUGHT WE HAD BOUGHT IT! SUPPLEMENTAL INFO FROM ACN 517149: DAY, VMC TKOF ROLL ON HKG RWY 25L, FO WAS FLYING, I WAS RELIEF PLT DIRECTLY BEHIND FLYING FO. L TO R XWIND OF ABOUT 15 KTS. TKOF ROLL SEEMED NORMAL UNTIL APCHING V1, WE QUICKLY BEGAN TO VEER TO THE L AND L WING CAME UP SIGNIFICANTLY. I GLANCED AT FO'S CTL INPUT AND SAW ABOUT 20 DEGS OF YOLK DISPLACEMENT TO THE R. THE ACFT GOT AIRBORNE BRIEFLY, THEN STRAIGHTENED OUT, MOVED BACK TO CTRLINE AND LANDED AGAIN, CONTINUING THE TKOF ROLL, NOW ABOVE V1 BUT BELOW VR. THE ACFT ROTATED AT VR AND FLEW AWAY.

Data retrieved from NASA's ASRS site as of July 2007 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.