Air carrier at cruise has TCASII RA. Responds.

Attributes
ACN	196844
Time
Date	199112
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	atc facility : mje
State Reference	FO
Altitude	msl bound lower : 33000 msl bound upper : 34000
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	Large Transport, Low Wing, 3 Turbojet Eng
Flight Phase	cruise other
Route In Use	enroute airway : rjtg
Flight Plan	IFR
Aircraft 2
Operator	common carrier : air carrier
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Flight Phase	cruise other
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 30 flight time total : 18000 flight time type : 4000
ASRS Report	196844
Person 2
Affiliation	company : air carrier
Function	flight crew : first officer
Qualification	pilot : atp
Events
Anomaly	conflict : ground less severe conflict : airborne less severe non adherence : published procedure other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	flight crew : took evasive action
Consequence	faa : reviewed incident with flight crew
Miss Distance	horizontal : 0 vertical : 1000
Supplementary
Primary Problem	ATC Human Performance
Air Traffic Incident	Operational Error

Narrative:

Level at FL330 en route lhe direct to ukata, TCASII advised 'traffic, traffic, traffic' (position mje 210/65) followed immediately by a 'climb, climb, climb' RA. As I began to level at 34000 ft I made visual contact with the intruder passing under our nose about 1000 ft below. After 'clear of conflict' I returned to FL330 and advised tokyo control on 127.4 -- absent the TCASII this would have been a midair or a very close miss.

Original NASA ASRS Text

Title: ACR AT CRUISE HAS TCASII RA. RESPONDS.

Narrative: LEVEL AT FL330 ENRTE LHE DIRECT TO UKATA, TCASII ADVISED 'TFC, TFC, TFC' (POS MJE 210/65) FOLLOWED IMMEDIATELY BY A 'CLB, CLB, CLB' RA. AS I BEGAN TO LEVEL AT 34000 FT I MADE VISUAL CONTACT WITH THE INTRUDER PASSING UNDER OUR NOSE ABOUT 1000 FT BELOW. AFTER 'CLR OF CONFLICT' I RETURNED TO FL330 AND ADVISED TOKYO CTL ON 127.4 -- ABSENT THE TCASII THIS WOULD HAVE BEEN A MIDAIR OR A VERY CLOSE MISS.

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.