B777 flight crew during departure from rjaa on the reversal 8 departure has uncommanded right turn n...

Attributes
ACN	686220
Time
Date	200602
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : zzzz.airport
State Reference	FO
Environment
Flight Conditions	VMC
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	B777-200
Operating Under FAR Part	Part 121
Route In Use	departure sid : nre8r
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Experience	flight time last 90 days : 120 flight time total : 18700 flight time type : 1850
ASRS Report	686220
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Experience	flight time last 90 days : 18 flight time total : 6500 flight time type : 990
ASRS Report	686226
Events
Anomaly	other spatial deviation
Independent Detector	other controllera other flight crewa other flight crewb
Resolutory Action	controller : provided flight assist controller : issued new clearance
Consequence	faa : reviewed incident with flight crew other
Supplementary
Problem Areas	Flight Crew Human Performance Aircraft
Primary Problem	Flight Crew Human Performance

Narrative:

Shortly after liftoff from runway 34R on the reversal 8 departure; LNAV engaged and commanded a right turn. This was a 20 degree flap takeoff; the operating experience first officer was flying; and I was closely monitoring the airspeed. As he started into the right turn; I said 'this is too early to start the turn;' selected heading and dialed 330 degrees to correct back to course. As I expanded my map display to confirm the correct runway and SID; as we had both previously done during preflight and taxi-out checklists; I verified runway 34R; however; the LNAV display was the routing for runway 16L. Departure control then called to say 'comply with the reversal 8 departure.' I responded with 'we are; and correcting back to course.' she then asked for our heading; which I gave 330 degrees. At that point she gave a 090 degree heading. I estimate our position approximately 1 NM right of centerline. As we continued the climb out with heading vectors; we were queried if we had turned shortly after takeoff and why; and I responded that we had and were experiencing a NAVAID malfunction. When we were above FL180; I reconstructed the initial portion of the route with runway 34R and the reversal 8 departure in route 2 of the FMC; and it appeared normal. Supplemental information from acn 686226: this event occurred at night. Predep set-up included FMC programming of narita reversal 8 departure; with runway 34R. The captain loaded the route and departure; and this was independently verified by myself; to include the altitude restrs on the departure of 7000 ft at D21 from sne. This altitude was then set in the MCP altitude window as a restr. As the FMC route page does not include the hakone transition; the fixes were checked on the legs page. Visual confirmation of the navigation display was also made that confirmed departure track. We received departure clearance which confirmed same departure and runway. The departure was briefed to include an LNAV departure from runway 34R. During taxi; while performing the before takeoff checklist; I visually confirmed runway 34R was displayed on the navigation display.

Original NASA ASRS Text

Title: B777 FLT CREW DURING DEP FROM RJAA ON THE REVERSAL 8 DEP HAS UNCOMMANDED R TURN NOT ASSOCIATED WITH THE DEP. FLT CREW ATTEMPTS TO RETURN TO THE PUBLISHED DEP; THE CTLR INTERVENES AND GIVES A NEW CLRNC.

Narrative: SHORTLY AFTER LIFTOFF FROM RWY 34R ON THE REVERSAL 8 DEP; LNAV ENGAGED AND COMMANDED A R TURN. THIS WAS A 20 DEG FLAP TKOF; THE OPERATING EXPERIENCE FO WAS FLYING; AND I WAS CLOSELY MONITORING THE AIRSPD. AS HE STARTED INTO THE R TURN; I SAID 'THIS IS TOO EARLY TO START THE TURN;' SELECTED HDG AND DIALED 330 DEGS TO CORRECT BACK TO COURSE. AS I EXPANDED MY MAP DISPLAY TO CONFIRM THE CORRECT RWY AND SID; AS WE HAD BOTH PREVIOUSLY DONE DURING PREFLT AND TAXI-OUT CHKLISTS; I VERIFIED RWY 34R; HOWEVER; THE LNAV DISPLAY WAS THE ROUTING FOR RWY 16L. DEP CTL THEN CALLED TO SAY 'COMPLY WITH THE REVERSAL 8 DEP.' I RESPONDED WITH 'WE ARE; AND CORRECTING BACK TO COURSE.' SHE THEN ASKED FOR OUR HDG; WHICH I GAVE 330 DEGS. AT THAT POINT SHE GAVE A 090 DEG HDG. I ESTIMATE OUR POS APPROX 1 NM R OF CTRLINE. AS WE CONTINUED THE CLBOUT WITH HDG VECTORS; WE WERE QUERIED IF WE HAD TURNED SHORTLY AFTER TKOF AND WHY; AND I RESPONDED THAT WE HAD AND WERE EXPERIENCING A NAVAID MALFUNCTION. WHEN WE WERE ABOVE FL180; I RECONSTRUCTED THE INITIAL PORTION OF THE RTE WITH RWY 34R AND THE REVERSAL 8 DEP IN RTE 2 OF THE FMC; AND IT APPEARED NORMAL. SUPPLEMENTAL INFO FROM ACN 686226: THIS EVENT OCCURRED AT NIGHT. PREDEP SET-UP INCLUDED FMC PROGRAMMING OF NARITA REVERSAL 8 DEP; WITH RWY 34R. THE CAPT LOADED THE RTE AND DEP; AND THIS WAS INDEPENDENTLY VERIFIED BY MYSELF; TO INCLUDE THE ALT RESTRS ON THE DEP OF 7000 FT AT D21 FROM SNE. THIS ALT WAS THEN SET IN THE MCP ALT WINDOW AS A RESTR. AS THE FMC RTE PAGE DOES NOT INCLUDE THE HAKONE TRANSITION; THE FIXES WERE CHKED ON THE LEGS PAGE. VISUAL CONFIRMATION OF THE NAV DISPLAY WAS ALSO MADE THAT CONFIRMED DEP TRACK. WE RECEIVED DEP CLRNC WHICH CONFIRMED SAME DEP AND RWY. THE DEP WAS BRIEFED TO INCLUDE AN LNAV DEP FROM RWY 34R. DURING TAXI; WHILE PERFORMING THE BEFORE TKOF CHKLIST; I VISUALLY CONFIRMED RWY 34R WAS DISPLAYED ON THE NAV DISPLAY.

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.

B777 flight crew during departure from rjaa on the reversal 8 departure has uncommanded right turn not associated with the departure. Flight crew attempts to return to the published departure; the controller intervenes and gives a new clearance.