Upon entering the nrt airspace at 10000 ft, a B747 flight crew received a TCASII RA. TCASII displayed traffic head on at 200 ft. The first officer executed an immediate right turn and climbed. Flight crew later speculated that the captain flying may have executed a wrong vector heading. The reporter cites the clearance was read back 3 times. Fatigue factor. Language problems.

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Attributes
ACN	391548
Time
Date	199801
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	atc facility : cvc
State Reference	FO
Altitude	msl bound lower : 10000 msl bound upper : 10000
Environment
Flight Conditions	IMC
Aircraft 1
Controlling Facilities	tracon : nrt
Operator	common carrier : air carrier
Make Model Name	B737-200
Operating Under FAR Part	Part 121
Navigation In Use	Other
Flight Phase	cruise other
Route In Use	arrival other
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	other personnel other
Qualification	pilot : flight engineer pilot : instrument pilot : cfi pilot : atp pilot : commercial
Experience	flight time last 90 days : 26 flight time total : 11000 flight time type : 2000
ASRS Report	391548
Person 2
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Events
Anomaly	conflict : nmac non adherence : clearance non adherence : required legal separation other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified
Resolutory Action	flight crew : took evasive action
Consequence	Other
Miss Distance	horizontal : 0 vertical : 200
Supplementary
Primary Problem	Flight Crew Human Performance

Narrative:

We had an augmented crew from the united states to japan. The crew had 2 capts, 1 first officer, 2 so's and a check airman. I was off duty sitting in the second observer seat on approach when the first officer, who was the PF, saw a target on TCASII. It was 200 ft below us and coming at us head-on. The first officer turned right out of the way and climbed. We also got an RA from TCASII after evasive action was taken. We were in IMC with light to moderate turbulence at the time and we had been flying for 11 hours. After the event there was speculation that maybe the captain on duty had accepted the wrong vector clearance. However the captain did read the clearance back to the controller 3 times. Factors: fatigue and language problems.

Original NASA ASRS Text

Title: UPON ENTERING THE NRT AIRSPACE AT 10000 FT, A B747 FLC RECEIVED A TCASII RA. TCASII DISPLAYED TFC HEAD ON AT 200 FT. THE FO EXECUTED AN IMMEDIATE R TURN AND CLBED. FLC LATER SPECULATED THAT THE CAPT FLYING MAY HAVE EXECUTED A WRONG VECTOR HDG. THE RPTR CITES THE CLRNC WAS READ BACK 3 TIMES. FATIGUE FACTOR. LANGUAGE PROBS.

Narrative: WE HAD AN AUGMENTED CREW FROM THE UNITED STATES TO JAPAN. THE CREW HAD 2 CAPTS, 1 FO, 2 SO'S AND A CHK AIRMAN. I WAS OFF DUTY SITTING IN THE SECOND OBSERVER SEAT ON APCH WHEN THE FO, WHO WAS THE PF, SAW A TARGET ON TCASII. IT WAS 200 FT BELOW US AND COMING AT US HEAD-ON. THE FO TURNED R OUT OF THE WAY AND CLBED. WE ALSO GOT AN RA FROM TCASII AFTER EVASIVE ACTION WAS TAKEN. WE WERE IN IMC WITH LIGHT TO MODERATE TURB AT THE TIME AND WE HAD BEEN FLYING FOR 11 HRS. AFTER THE EVENT THERE WAS SPECULATION THAT MAYBE THE CAPT ON DUTY HAD ACCEPTED THE WRONG VECTOR CLRNC. HOWEVER THE CAPT DID READ THE CLRNC BACK TO THE CTLR 3 TIMES. FACTORS: FATIGUE AND LANGUAGE PROBS.

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.