B747 flight crew has taxiway excursion at ymml.

Attributes
ACN	575811
Time
Date	200303
Day	Fri
Local Time Of Day	1801 To 2400
Place
State Reference	FO
Altitude	agl single value : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B747-400
Operating Under FAR Part	Part 121
Flight Phase	ground : taxi
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument pilot : multi engine
ASRS Report	575811
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Events
Anomaly	excursion : taxiway
Independent Detector	other flight crewa other flight crewb
Resolutory Action	none taken : insufficient time
Supplementary
Problem Areas	Aircraft Flight Crew Human Performance
Primary Problem	Flight Crew Human Performance

Narrative:

After normal landing and rollout on runway 27 at ymml, taxied the aircraft clear of the runway on taxiway M and then on to taxiway east, 2 l-hand turns. The captain and I had prebriefed xfer of steering on taxiway east prior to crossing runway 34. Prior to xfer, the aircraft nose was tracking slightly left of centerline. I corrected to the right, noting a slight stiffness in the tiller. I initially attributed this to the 15+ KT crosswind from the north (left of the aircraft on taxiway east) we encountered on landing. I input more right tiller to the right to get the desired correction and response. As the correction took effect, and I approached my lead to centerline, I put in the required tiller left to maintain centerline. The nose did not initially respond, and I increased the input to get the desired result. At this time, xfer of steering was accomplished with the captain, and the nose went suddenly left. The captain then attempted to arrest the left movement. However, the aircraft departed the shoulder of the taxiway. At that time, the captain told me to announce to the flight attendants and passenger to remain seated while he shut down the engines. Tower was informed, and emergency equipment responded. Operations was informed, and bus xportation for the passenger arranged.

Original NASA ASRS Text

Title: B747 FLT CREW HAS TXWY EXCURSION AT YMML.

Narrative: AFTER NORMAL LNDG AND ROLLOUT ON RWY 27 AT YMML, TAXIED THE ACFT CLR OF THE RWY ON TXWY M AND THEN ON TO TXWY E, 2 L-HAND TURNS. THE CAPT AND I HAD PREBRIEFED XFER OF STEERING ON TXWY E PRIOR TO XING RWY 34. PRIOR TO XFER, THE ACFT NOSE WAS TRACKING SLIGHTLY L OF CTRLINE. I CORRECTED TO THE R, NOTING A SLIGHT STIFFNESS IN THE TILLER. I INITIALLY ATTRIBUTED THIS TO THE 15+ KT XWIND FROM THE N (L OF THE ACFT ON TXWY E) WE ENCOUNTERED ON LNDG. I INPUT MORE R TILLER TO THE R TO GET THE DESIRED CORRECTION AND RESPONSE. AS THE CORRECTION TOOK EFFECT, AND I APCHED MY LEAD TO CTRLINE, I PUT IN THE REQUIRED TILLER L TO MAINTAIN CTRLINE. THE NOSE DID NOT INITIALLY RESPOND, AND I INCREASED THE INPUT TO GET THE DESIRED RESULT. AT THIS TIME, XFER OF STEERING WAS ACCOMPLISHED WITH THE CAPT, AND THE NOSE WENT SUDDENLY L. THE CAPT THEN ATTEMPTED TO ARREST THE L MOVEMENT. HOWEVER, THE ACFT DEPARTED THE SHOULDER OF THE TXWY. AT THAT TIME, THE CAPT TOLD ME TO ANNOUNCE TO THE FLT ATTENDANTS AND PAX TO REMAIN SEATED WHILE HE SHUT DOWN THE ENGS. TWR WAS INFORMED, AND EMER EQUIP RESPONDED. OPS WAS INFORMED, AND BUS XPORTATION FOR THE PAX ARRANGED.

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.